solana/web3.js/src/connection.ts

4754 lines
128 KiB
TypeScript

import bs58 from 'bs58';
import {Buffer} from 'buffer';
import crossFetch from 'cross-fetch';
import {
type as pick,
number,
string,
array,
boolean,
literal,
record,
union,
optional,
nullable,
coerce,
instance,
create,
tuple,
unknown,
any,
} from 'superstruct';
import type {Struct} from 'superstruct';
import {Client as RpcWebSocketClient} from 'rpc-websockets';
import RpcClient from 'jayson/lib/client/browser';
import {IWSRequestParams} from 'rpc-websockets/dist/lib/client';
import {AgentManager} from './agent-manager';
import {EpochSchedule} from './epoch-schedule';
import {SendTransactionError} from './errors';
import {NonceAccount} from './nonce-account';
import {PublicKey} from './publickey';
import {Signer} from './keypair';
import {MS_PER_SLOT} from './timing';
import {Transaction} from './transaction';
import {Message} from './message';
import assert from './util/assert';
import {sleep} from './util/sleep';
import {promiseTimeout} from './util/promise-timeout';
import {toBuffer} from './util/to-buffer';
import {makeWebsocketUrl} from './util/url';
import type {Blockhash} from './blockhash';
import type {FeeCalculator} from './fee-calculator';
import type {TransactionSignature} from './transaction';
import type {CompiledInstruction} from './message';
const PublicKeyFromString = coerce(
instance(PublicKey),
string(),
value => new PublicKey(value),
);
const RawAccountDataResult = tuple([string(), literal('base64')]);
const BufferFromRawAccountData = coerce(
instance(Buffer),
RawAccountDataResult,
value => Buffer.from(value[0], 'base64'),
);
/**
* Attempt to use a recent blockhash for up to 30 seconds
* @internal
*/
export const BLOCKHASH_CACHE_TIMEOUT_MS = 30 * 1000;
type RpcRequest = (methodName: string, args: Array<any>) => any;
type RpcBatchRequest = (requests: RpcParams[]) => any;
/**
* @internal
*/
export type RpcParams = {
methodName: string;
args: Array<any>;
};
export type TokenAccountsFilter =
| {
mint: PublicKey;
}
| {
programId: PublicKey;
};
/**
* Extra contextual information for RPC responses
*/
export type Context = {
slot: number;
};
/**
* Options for sending transactions
*/
export type SendOptions = {
/** disable transaction verification step */
skipPreflight?: boolean;
/** preflight commitment level */
preflightCommitment?: Commitment;
/** Maximum number of times for the RPC node to retry sending the transaction to the leader. */
maxRetries?: number;
};
/**
* Options for confirming transactions
*/
export type ConfirmOptions = {
/** disable transaction verification step */
skipPreflight?: boolean;
/** desired commitment level */
commitment?: Commitment;
/** preflight commitment level */
preflightCommitment?: Commitment;
/** Maximum number of times for the RPC node to retry sending the transaction to the leader. */
maxRetries?: number;
};
/**
* Options for getConfirmedSignaturesForAddress2
*/
export type ConfirmedSignaturesForAddress2Options = {
/**
* Start searching backwards from this transaction signature.
* @remark If not provided the search starts from the highest max confirmed block.
*/
before?: TransactionSignature;
/** Search until this transaction signature is reached, if found before `limit`. */
until?: TransactionSignature;
/** Maximum transaction signatures to return (between 1 and 1,000, default: 1,000). */
limit?: number;
};
/**
* Options for getSignaturesForAddress
*/
export type SignaturesForAddressOptions = {
/**
* Start searching backwards from this transaction signature.
* @remark If not provided the search starts from the highest max confirmed block.
*/
before?: TransactionSignature;
/** Search until this transaction signature is reached, if found before `limit`. */
until?: TransactionSignature;
/** Maximum transaction signatures to return (between 1 and 1,000, default: 1,000). */
limit?: number;
};
/**
* RPC Response with extra contextual information
*/
export type RpcResponseAndContext<T> = {
/** response context */
context: Context;
/** response value */
value: T;
};
/**
* @internal
*/
function createRpcResult<T, U>(result: Struct<T, U>) {
return union([
pick({
jsonrpc: literal('2.0'),
id: string(),
result,
}),
pick({
jsonrpc: literal('2.0'),
id: string(),
error: pick({
code: unknown(),
message: string(),
data: optional(any()),
}),
}),
]);
}
const UnknownRpcResult = createRpcResult(unknown());
/**
* @internal
*/
function jsonRpcResult<T, U>(schema: Struct<T, U>) {
return coerce(createRpcResult(schema), UnknownRpcResult, value => {
if ('error' in value) {
return value;
} else {
return {
...value,
result: create(value.result, schema),
};
}
});
}
/**
* @internal
*/
function jsonRpcResultAndContext<T, U>(value: Struct<T, U>) {
return jsonRpcResult(
pick({
context: pick({
slot: number(),
}),
value,
}),
);
}
/**
* @internal
*/
function notificationResultAndContext<T, U>(value: Struct<T, U>) {
return pick({
context: pick({
slot: number(),
}),
value,
});
}
/**
* The level of commitment desired when querying state
* <pre>
* 'processed': Query the most recent block which has reached 1 confirmation by the connected node
* 'confirmed': Query the most recent block which has reached 1 confirmation by the cluster
* 'finalized': Query the most recent block which has been finalized by the cluster
* </pre>
*/
export type Commitment =
| 'processed'
| 'confirmed'
| 'finalized'
| 'recent' // Deprecated as of v1.5.5
| 'single' // Deprecated as of v1.5.5
| 'singleGossip' // Deprecated as of v1.5.5
| 'root' // Deprecated as of v1.5.5
| 'max'; // Deprecated as of v1.5.5
/**
* A subset of Commitment levels, which are at least optimistically confirmed
* <pre>
* 'confirmed': Query the most recent block which has reached 1 confirmation by the cluster
* 'finalized': Query the most recent block which has been finalized by the cluster
* </pre>
*/
export type Finality = 'confirmed' | 'finalized';
/**
* Filter for largest accounts query
* <pre>
* 'circulating': Return the largest accounts that are part of the circulating supply
* 'nonCirculating': Return the largest accounts that are not part of the circulating supply
* </pre>
*/
export type LargestAccountsFilter = 'circulating' | 'nonCirculating';
/**
* Configuration object for changing `getLargestAccounts` query behavior
*/
export type GetLargestAccountsConfig = {
/** The level of commitment desired */
commitment?: Commitment;
/** Filter largest accounts by whether they are part of the circulating supply */
filter?: LargestAccountsFilter;
};
/**
* Configuration object for changing `getSupply` request behavior
*/
export type GetSupplyConfig = {
/** The level of commitment desired */
commitment?: Commitment;
/** Exclude non circulating accounts list from response */
excludeNonCirculatingAccountsList?: boolean;
};
/**
* Configuration object for changing query behavior
*/
export type SignatureStatusConfig = {
/** enable searching status history, not needed for recent transactions */
searchTransactionHistory: boolean;
};
/**
* Information describing a cluster node
*/
export type ContactInfo = {
/** Identity public key of the node */
pubkey: string;
/** Gossip network address for the node */
gossip: string | null;
/** TPU network address for the node (null if not available) */
tpu: string | null;
/** JSON RPC network address for the node (null if not available) */
rpc: string | null;
/** Software version of the node (null if not available) */
version: string | null;
};
/**
* Information describing a vote account
*/
export type VoteAccountInfo = {
/** Public key of the vote account */
votePubkey: string;
/** Identity public key of the node voting with this account */
nodePubkey: string;
/** The stake, in lamports, delegated to this vote account and activated */
activatedStake: number;
/** Whether the vote account is staked for this epoch */
epochVoteAccount: boolean;
/** Recent epoch voting credit history for this voter */
epochCredits: Array<[number, number, number]>;
/** A percentage (0-100) of rewards payout owed to the voter */
commission: number;
/** Most recent slot voted on by this vote account */
lastVote: number;
};
/**
* A collection of cluster vote accounts
*/
export type VoteAccountStatus = {
/** Active vote accounts */
current: Array<VoteAccountInfo>;
/** Inactive vote accounts */
delinquent: Array<VoteAccountInfo>;
};
/**
* Network Inflation
* (see https://docs.solana.com/implemented-proposals/ed_overview)
*/
export type InflationGovernor = {
foundation: number;
foundationTerm: number;
initial: number;
taper: number;
terminal: number;
};
const GetInflationGovernorResult = pick({
foundation: number(),
foundationTerm: number(),
initial: number(),
taper: number(),
terminal: number(),
});
/**
* The inflation reward for an epoch
*/
export type InflationReward = {
/** epoch for which the reward occurs */
epoch: number;
/** the slot in which the rewards are effective */
effectiveSlot: number;
/** reward amount in lamports */
amount: number;
/** post balance of the account in lamports */
postBalance: number;
};
/**
* Expected JSON RPC response for the "getInflationReward" message
*/
const GetInflationRewardResult = jsonRpcResult(
array(
nullable(
pick({
epoch: number(),
effectiveSlot: number(),
amount: number(),
postBalance: number(),
}),
),
),
);
/**
* Information about the current epoch
*/
export type EpochInfo = {
epoch: number;
slotIndex: number;
slotsInEpoch: number;
absoluteSlot: number;
blockHeight?: number;
transactionCount?: number;
};
const GetEpochInfoResult = pick({
epoch: number(),
slotIndex: number(),
slotsInEpoch: number(),
absoluteSlot: number(),
blockHeight: optional(number()),
transactionCount: optional(number()),
});
const GetEpochScheduleResult = pick({
slotsPerEpoch: number(),
leaderScheduleSlotOffset: number(),
warmup: boolean(),
firstNormalEpoch: number(),
firstNormalSlot: number(),
});
/**
* Leader schedule
* (see https://docs.solana.com/terminology#leader-schedule)
*/
export type LeaderSchedule = {
[address: string]: number[];
};
const GetLeaderScheduleResult = record(string(), array(number()));
/**
* Transaction error or null
*/
const TransactionErrorResult = nullable(union([pick({}), string()]));
/**
* Signature status for a transaction
*/
const SignatureStatusResult = pick({
err: TransactionErrorResult,
});
/**
* Transaction signature received notification
*/
const SignatureReceivedResult = literal('receivedSignature');
/**
* Version info for a node
*/
export type Version = {
/** Version of solana-core */
'solana-core': string;
'feature-set'?: number;
};
const VersionResult = pick({
'solana-core': string(),
'feature-set': optional(number()),
});
export type SimulatedTransactionAccountInfo = {
/** `true` if this account's data contains a loaded program */
executable: boolean;
/** Identifier of the program that owns the account */
owner: string;
/** Number of lamports assigned to the account */
lamports: number;
/** Optional data assigned to the account */
data: string[];
/** Optional rent epoch info for account */
rentEpoch?: number;
};
export type SimulatedTransactionResponse = {
err: TransactionError | string | null;
logs: Array<string> | null;
accounts?: (SimulatedTransactionAccountInfo | null)[] | null;
unitsConsumed?: number;
};
const SimulatedTransactionResponseStruct = jsonRpcResultAndContext(
pick({
err: nullable(union([pick({}), string()])),
logs: nullable(array(string())),
accounts: optional(
nullable(
array(
nullable(
pick({
executable: boolean(),
owner: string(),
lamports: number(),
data: array(string()),
rentEpoch: optional(number()),
}),
),
),
),
),
unitsConsumed: optional(number()),
}),
);
export type ParsedInnerInstruction = {
index: number;
instructions: (ParsedInstruction | PartiallyDecodedInstruction)[];
};
export type TokenBalance = {
accountIndex: number;
mint: string;
owner?: string;
uiTokenAmount: TokenAmount;
};
/**
* Metadata for a parsed confirmed transaction on the ledger
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link ParsedTransactionMeta} instead.
*/
export type ParsedConfirmedTransactionMeta = ParsedTransactionMeta;
/**
* Metadata for a parsed transaction on the ledger
*/
export type ParsedTransactionMeta = {
/** The fee charged for processing the transaction */
fee: number;
/** An array of cross program invoked parsed instructions */
innerInstructions?: ParsedInnerInstruction[] | null;
/** The balances of the transaction accounts before processing */
preBalances: Array<number>;
/** The balances of the transaction accounts after processing */
postBalances: Array<number>;
/** An array of program log messages emitted during a transaction */
logMessages?: Array<string> | null;
/** The token balances of the transaction accounts before processing */
preTokenBalances?: Array<TokenBalance> | null;
/** The token balances of the transaction accounts after processing */
postTokenBalances?: Array<TokenBalance> | null;
/** The error result of transaction processing */
err: TransactionError | null;
};
export type CompiledInnerInstruction = {
index: number;
instructions: CompiledInstruction[];
};
/**
* Metadata for a confirmed transaction on the ledger
*/
export type ConfirmedTransactionMeta = {
/** The fee charged for processing the transaction */
fee: number;
/** An array of cross program invoked instructions */
innerInstructions?: CompiledInnerInstruction[] | null;
/** The balances of the transaction accounts before processing */
preBalances: Array<number>;
/** The balances of the transaction accounts after processing */
postBalances: Array<number>;
/** An array of program log messages emitted during a transaction */
logMessages?: Array<string> | null;
/** The token balances of the transaction accounts before processing */
preTokenBalances?: Array<TokenBalance> | null;
/** The token balances of the transaction accounts after processing */
postTokenBalances?: Array<TokenBalance> | null;
/** The error result of transaction processing */
err: TransactionError | null;
};
/**
* A processed transaction from the RPC API
*/
export type TransactionResponse = {
/** The slot during which the transaction was processed */
slot: number;
/** The transaction */
transaction: {
/** The transaction message */
message: Message;
/** The transaction signatures */
signatures: string[];
};
/** Metadata produced from the transaction */
meta: ConfirmedTransactionMeta | null;
/** The unix timestamp of when the transaction was processed */
blockTime?: number | null;
};
/**
* A confirmed transaction on the ledger
*/
export type ConfirmedTransaction = {
/** The slot during which the transaction was processed */
slot: number;
/** The details of the transaction */
transaction: Transaction;
/** Metadata produced from the transaction */
meta: ConfirmedTransactionMeta | null;
/** The unix timestamp of when the transaction was processed */
blockTime?: number | null;
};
/**
* A partially decoded transaction instruction
*/
export type PartiallyDecodedInstruction = {
/** Program id called by this instruction */
programId: PublicKey;
/** Public keys of accounts passed to this instruction */
accounts: Array<PublicKey>;
/** Raw base-58 instruction data */
data: string;
};
/**
* A parsed transaction message account
*/
export type ParsedMessageAccount = {
/** Public key of the account */
pubkey: PublicKey;
/** Indicates if the account signed the transaction */
signer: boolean;
/** Indicates if the account is writable for this transaction */
writable: boolean;
};
/**
* A parsed transaction instruction
*/
export type ParsedInstruction = {
/** Name of the program for this instruction */
program: string;
/** ID of the program for this instruction */
programId: PublicKey;
/** Parsed instruction info */
parsed: any;
};
/**
* A parsed transaction message
*/
export type ParsedMessage = {
/** Accounts used in the instructions */
accountKeys: ParsedMessageAccount[];
/** The atomically executed instructions for the transaction */
instructions: (ParsedInstruction | PartiallyDecodedInstruction)[];
/** Recent blockhash */
recentBlockhash: string;
};
/**
* A parsed transaction
*/
export type ParsedTransaction = {
/** Signatures for the transaction */
signatures: Array<string>;
/** Message of the transaction */
message: ParsedMessage;
};
/**
* A parsed and confirmed transaction on the ledger
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link ParsedTransactionWithMeta} instead.
*/
export type ParsedConfirmedTransaction = ParsedTransactionWithMeta;
/**
* A parsed transaction on the ledger with meta
*/
export type ParsedTransactionWithMeta = {
/** The slot during which the transaction was processed */
slot: number;
/** The details of the transaction */
transaction: ParsedTransaction;
/** Metadata produced from the transaction */
meta: ParsedTransactionMeta | null;
/** The unix timestamp of when the transaction was processed */
blockTime?: number | null;
};
/**
* A processed block fetched from the RPC API
*/
export type BlockResponse = {
/** Blockhash of this block */
blockhash: Blockhash;
/** Blockhash of this block's parent */
previousBlockhash: Blockhash;
/** Slot index of this block's parent */
parentSlot: number;
/** Vector of transactions with status meta and original message */
transactions: Array<{
/** The transaction */
transaction: {
/** The transaction message */
message: Message;
/** The transaction signatures */
signatures: string[];
};
/** Metadata produced from the transaction */
meta: ConfirmedTransactionMeta | null;
}>;
/** Vector of block rewards */
rewards?: Array<{
/** Public key of reward recipient */
pubkey: string;
/** Reward value in lamports */
lamports: number;
/** Account balance after reward is applied */
postBalance: number | null;
/** Type of reward received */
rewardType: string | null;
}>;
/** The unix timestamp of when the block was processed */
blockTime: number | null;
};
/**
* A ConfirmedBlock on the ledger
*/
export type ConfirmedBlock = {
/** Blockhash of this block */
blockhash: Blockhash;
/** Blockhash of this block's parent */
previousBlockhash: Blockhash;
/** Slot index of this block's parent */
parentSlot: number;
/** Vector of transactions and status metas */
transactions: Array<{
transaction: Transaction;
meta: ConfirmedTransactionMeta | null;
}>;
/** Vector of block rewards */
rewards?: Array<{
pubkey: string;
lamports: number;
postBalance: number | null;
rewardType: string | null;
}>;
/** The unix timestamp of when the block was processed */
blockTime: number | null;
};
/**
* A Block on the ledger with signatures only
*/
export type BlockSignatures = {
/** Blockhash of this block */
blockhash: Blockhash;
/** Blockhash of this block's parent */
previousBlockhash: Blockhash;
/** Slot index of this block's parent */
parentSlot: number;
/** Vector of signatures */
signatures: Array<string>;
/** The unix timestamp of when the block was processed */
blockTime: number | null;
};
/**
* recent block production information
*/
export type BlockProduction = Readonly<{
/** a dictionary of validator identities, as base-58 encoded strings. Value is a two element array containing the number of leader slots and the number of blocks produced */
byIdentity: Readonly<Record<string, ReadonlyArray<number>>>;
/** Block production slot range */
range: Readonly<{
/** first slot of the block production information (inclusive) */
firstSlot: number;
/** last slot of block production information (inclusive) */
lastSlot: number;
}>;
}>;
export type GetBlockProductionConfig = {
/** Optional commitment level */
commitment?: Commitment;
/** Slot range to return block production for. If parameter not provided, defaults to current epoch. */
range?: {
/** first slot to return block production information for (inclusive) */
firstSlot: number;
/** last slot to return block production information for (inclusive). If parameter not provided, defaults to the highest slot */
lastSlot?: number;
};
/** Only return results for this validator identity (base-58 encoded) */
identity?: string;
};
/**
* Expected JSON RPC response for the "getBlockProduction" message
*/
const BlockProductionResponseStruct = jsonRpcResultAndContext(
pick({
byIdentity: record(string(), array(number())),
range: pick({
firstSlot: number(),
lastSlot: number(),
}),
}),
);
/**
* A performance sample
*/
export type PerfSample = {
/** Slot number of sample */
slot: number;
/** Number of transactions in a sample window */
numTransactions: number;
/** Number of slots in a sample window */
numSlots: number;
/** Sample window in seconds */
samplePeriodSecs: number;
};
function createRpcClient(
url: string,
useHttps: boolean,
httpHeaders?: HttpHeaders,
customFetch?: typeof crossFetch,
fetchMiddleware?: FetchMiddleware,
disableRetryOnRateLimit?: boolean,
): RpcClient {
const fetch = customFetch ? customFetch : crossFetch;
let agentManager: AgentManager | undefined;
if (!process.env.BROWSER) {
agentManager = new AgentManager(useHttps);
}
let fetchWithMiddleware:
| ((url: string, options: any) => Promise<Response>)
| undefined;
if (fetchMiddleware) {
fetchWithMiddleware = async (url: string, options: any) => {
const modifiedFetchArgs = await new Promise<[string, any]>(
(resolve, reject) => {
try {
fetchMiddleware(url, options, (modifiedUrl, modifiedOptions) =>
resolve([modifiedUrl, modifiedOptions]),
);
} catch (error) {
reject(error);
}
},
);
return await fetch(...modifiedFetchArgs);
};
}
const clientBrowser = new RpcClient(async (request, callback) => {
const agent = agentManager ? agentManager.requestStart() : undefined;
const options = {
method: 'POST',
body: request,
agent,
headers: Object.assign(
{
'Content-Type': 'application/json',
},
httpHeaders || {},
),
};
try {
let too_many_requests_retries = 5;
let res: Response;
let waitTime = 500;
for (;;) {
if (fetchWithMiddleware) {
res = await fetchWithMiddleware(url, options);
} else {
res = await fetch(url, options);
}
if (res.status !== 429 /* Too many requests */) {
break;
}
if (disableRetryOnRateLimit === true) {
break;
}
too_many_requests_retries -= 1;
if (too_many_requests_retries === 0) {
break;
}
console.log(
`Server responded with ${res.status} ${res.statusText}. Retrying after ${waitTime}ms delay...`,
);
await sleep(waitTime);
waitTime *= 2;
}
const text = await res.text();
if (res.ok) {
callback(null, text);
} else {
callback(new Error(`${res.status} ${res.statusText}: ${text}`));
}
} catch (err) {
if (err instanceof Error) callback(err);
} finally {
agentManager && agentManager.requestEnd();
}
}, {});
return clientBrowser;
}
function createRpcRequest(client: RpcClient): RpcRequest {
return (method, args) => {
return new Promise((resolve, reject) => {
client.request(method, args, (err: any, response: any) => {
if (err) {
reject(err);
return;
}
resolve(response);
});
});
};
}
function createRpcBatchRequest(client: RpcClient): RpcBatchRequest {
return (requests: RpcParams[]) => {
return new Promise((resolve, reject) => {
// Do nothing if requests is empty
if (requests.length === 0) resolve([]);
const batch = requests.map((params: RpcParams) => {
return client.request(params.methodName, params.args);
});
client.request(batch, (err: any, response: any) => {
if (err) {
reject(err);
return;
}
resolve(response);
});
});
};
}
/**
* Expected JSON RPC response for the "getInflationGovernor" message
*/
const GetInflationGovernorRpcResult = jsonRpcResult(GetInflationGovernorResult);
/**
* Expected JSON RPC response for the "getEpochInfo" message
*/
const GetEpochInfoRpcResult = jsonRpcResult(GetEpochInfoResult);
/**
* Expected JSON RPC response for the "getEpochSchedule" message
*/
const GetEpochScheduleRpcResult = jsonRpcResult(GetEpochScheduleResult);
/**
* Expected JSON RPC response for the "getLeaderSchedule" message
*/
const GetLeaderScheduleRpcResult = jsonRpcResult(GetLeaderScheduleResult);
/**
* Expected JSON RPC response for the "minimumLedgerSlot" and "getFirstAvailableBlock" messages
*/
const SlotRpcResult = jsonRpcResult(number());
/**
* Supply
*/
export type Supply = {
/** Total supply in lamports */
total: number;
/** Circulating supply in lamports */
circulating: number;
/** Non-circulating supply in lamports */
nonCirculating: number;
/** List of non-circulating account addresses */
nonCirculatingAccounts: Array<PublicKey>;
};
/**
* Expected JSON RPC response for the "getSupply" message
*/
const GetSupplyRpcResult = jsonRpcResultAndContext(
pick({
total: number(),
circulating: number(),
nonCirculating: number(),
nonCirculatingAccounts: array(PublicKeyFromString),
}),
);
/**
* Token amount object which returns a token amount in different formats
* for various client use cases.
*/
export type TokenAmount = {
/** Raw amount of tokens as string ignoring decimals */
amount: string;
/** Number of decimals configured for token's mint */
decimals: number;
/** Token amount as float, accounts for decimals */
uiAmount: number | null;
/** Token amount as string, accounts for decimals */
uiAmountString?: string;
};
/**
* Expected JSON RPC structure for token amounts
*/
const TokenAmountResult = pick({
amount: string(),
uiAmount: nullable(number()),
decimals: number(),
uiAmountString: optional(string()),
});
/**
* Token address and balance.
*/
export type TokenAccountBalancePair = {
/** Address of the token account */
address: PublicKey;
/** Raw amount of tokens as string ignoring decimals */
amount: string;
/** Number of decimals configured for token's mint */
decimals: number;
/** Token amount as float, accounts for decimals */
uiAmount: number | null;
/** Token amount as string, accounts for decimals */
uiAmountString?: string;
};
/**
* Expected JSON RPC response for the "getTokenLargestAccounts" message
*/
const GetTokenLargestAccountsResult = jsonRpcResultAndContext(
array(
pick({
address: PublicKeyFromString,
amount: string(),
uiAmount: nullable(number()),
decimals: number(),
uiAmountString: optional(string()),
}),
),
);
/**
* Expected JSON RPC response for the "getTokenAccountsByOwner" message
*/
const GetTokenAccountsByOwner = jsonRpcResultAndContext(
array(
pick({
pubkey: PublicKeyFromString,
account: pick({
executable: boolean(),
owner: PublicKeyFromString,
lamports: number(),
data: BufferFromRawAccountData,
rentEpoch: number(),
}),
}),
),
);
const ParsedAccountDataResult = pick({
program: string(),
parsed: unknown(),
space: number(),
});
/**
* Expected JSON RPC response for the "getTokenAccountsByOwner" message with parsed data
*/
const GetParsedTokenAccountsByOwner = jsonRpcResultAndContext(
array(
pick({
pubkey: PublicKeyFromString,
account: pick({
executable: boolean(),
owner: PublicKeyFromString,
lamports: number(),
data: ParsedAccountDataResult,
rentEpoch: number(),
}),
}),
),
);
/**
* Pair of an account address and its balance
*/
export type AccountBalancePair = {
address: PublicKey;
lamports: number;
};
/**
* Expected JSON RPC response for the "getLargestAccounts" message
*/
const GetLargestAccountsRpcResult = jsonRpcResultAndContext(
array(
pick({
lamports: number(),
address: PublicKeyFromString,
}),
),
);
/**
* @internal
*/
const AccountInfoResult = pick({
executable: boolean(),
owner: PublicKeyFromString,
lamports: number(),
data: BufferFromRawAccountData,
rentEpoch: number(),
});
/**
* @internal
*/
const KeyedAccountInfoResult = pick({
pubkey: PublicKeyFromString,
account: AccountInfoResult,
});
const ParsedOrRawAccountData = coerce(
union([instance(Buffer), ParsedAccountDataResult]),
union([RawAccountDataResult, ParsedAccountDataResult]),
value => {
if (Array.isArray(value)) {
return create(value, BufferFromRawAccountData);
} else {
return value;
}
},
);
/**
* @internal
*/
const ParsedAccountInfoResult = pick({
executable: boolean(),
owner: PublicKeyFromString,
lamports: number(),
data: ParsedOrRawAccountData,
rentEpoch: number(),
});
const KeyedParsedAccountInfoResult = pick({
pubkey: PublicKeyFromString,
account: ParsedAccountInfoResult,
});
/**
* @internal
*/
const StakeActivationResult = pick({
state: union([
literal('active'),
literal('inactive'),
literal('activating'),
literal('deactivating'),
]),
active: number(),
inactive: number(),
});
/**
* Expected JSON RPC response for the "getConfirmedSignaturesForAddress2" message
*/
const GetConfirmedSignaturesForAddress2RpcResult = jsonRpcResult(
array(
pick({
signature: string(),
slot: number(),
err: TransactionErrorResult,
memo: nullable(string()),
blockTime: optional(nullable(number())),
}),
),
);
/**
* Expected JSON RPC response for the "getSignaturesForAddress" message
*/
const GetSignaturesForAddressRpcResult = jsonRpcResult(
array(
pick({
signature: string(),
slot: number(),
err: TransactionErrorResult,
memo: nullable(string()),
blockTime: optional(nullable(number())),
}),
),
);
/***
* Expected JSON RPC response for the "accountNotification" message
*/
const AccountNotificationResult = pick({
subscription: number(),
result: notificationResultAndContext(AccountInfoResult),
});
/**
* @internal
*/
const ProgramAccountInfoResult = pick({
pubkey: PublicKeyFromString,
account: AccountInfoResult,
});
/***
* Expected JSON RPC response for the "programNotification" message
*/
const ProgramAccountNotificationResult = pick({
subscription: number(),
result: notificationResultAndContext(ProgramAccountInfoResult),
});
/**
* @internal
*/
const SlotInfoResult = pick({
parent: number(),
slot: number(),
root: number(),
});
/**
* Expected JSON RPC response for the "slotNotification" message
*/
const SlotNotificationResult = pick({
subscription: number(),
result: SlotInfoResult,
});
/**
* Slot updates which can be used for tracking the live progress of a cluster.
* - `"firstShredReceived"`: connected node received the first shred of a block.
* Indicates that a new block that is being produced.
* - `"completed"`: connected node has received all shreds of a block. Indicates
* a block was recently produced.
* - `"optimisticConfirmation"`: block was optimistically confirmed by the
* cluster. It is not guaranteed that an optimistic confirmation notification
* will be sent for every finalized blocks.
* - `"root"`: the connected node rooted this block.
* - `"createdBank"`: the connected node has started validating this block.
* - `"frozen"`: the connected node has validated this block.
* - `"dead"`: the connected node failed to validate this block.
*/
export type SlotUpdate =
| {
type: 'firstShredReceived';
slot: number;
timestamp: number;
}
| {
type: 'completed';
slot: number;
timestamp: number;
}
| {
type: 'createdBank';
slot: number;
timestamp: number;
parent: number;
}
| {
type: 'frozen';
slot: number;
timestamp: number;
stats: {
numTransactionEntries: number;
numSuccessfulTransactions: number;
numFailedTransactions: number;
maxTransactionsPerEntry: number;
};
}
| {
type: 'dead';
slot: number;
timestamp: number;
err: string;
}
| {
type: 'optimisticConfirmation';
slot: number;
timestamp: number;
}
| {
type: 'root';
slot: number;
timestamp: number;
};
/**
* @internal
*/
const SlotUpdateResult = union([
pick({
type: union([
literal('firstShredReceived'),
literal('completed'),
literal('optimisticConfirmation'),
literal('root'),
]),
slot: number(),
timestamp: number(),
}),
pick({
type: literal('createdBank'),
parent: number(),
slot: number(),
timestamp: number(),
}),
pick({
type: literal('frozen'),
slot: number(),
timestamp: number(),
stats: pick({
numTransactionEntries: number(),
numSuccessfulTransactions: number(),
numFailedTransactions: number(),
maxTransactionsPerEntry: number(),
}),
}),
pick({
type: literal('dead'),
slot: number(),
timestamp: number(),
err: string(),
}),
]);
/**
* Expected JSON RPC response for the "slotsUpdatesNotification" message
*/
const SlotUpdateNotificationResult = pick({
subscription: number(),
result: SlotUpdateResult,
});
/**
* Expected JSON RPC response for the "signatureNotification" message
*/
const SignatureNotificationResult = pick({
subscription: number(),
result: notificationResultAndContext(
union([SignatureStatusResult, SignatureReceivedResult]),
),
});
/**
* Expected JSON RPC response for the "rootNotification" message
*/
const RootNotificationResult = pick({
subscription: number(),
result: number(),
});
const ContactInfoResult = pick({
pubkey: string(),
gossip: nullable(string()),
tpu: nullable(string()),
rpc: nullable(string()),
version: nullable(string()),
});
const VoteAccountInfoResult = pick({
votePubkey: string(),
nodePubkey: string(),
activatedStake: number(),
epochVoteAccount: boolean(),
epochCredits: array(tuple([number(), number(), number()])),
commission: number(),
lastVote: number(),
rootSlot: nullable(number()),
});
/**
* Expected JSON RPC response for the "getVoteAccounts" message
*/
const GetVoteAccounts = jsonRpcResult(
pick({
current: array(VoteAccountInfoResult),
delinquent: array(VoteAccountInfoResult),
}),
);
const ConfirmationStatus = union([
literal('processed'),
literal('confirmed'),
literal('finalized'),
]);
const SignatureStatusResponse = pick({
slot: number(),
confirmations: nullable(number()),
err: TransactionErrorResult,
confirmationStatus: optional(ConfirmationStatus),
});
/**
* Expected JSON RPC response for the "getSignatureStatuses" message
*/
const GetSignatureStatusesRpcResult = jsonRpcResultAndContext(
array(nullable(SignatureStatusResponse)),
);
/**
* Expected JSON RPC response for the "getMinimumBalanceForRentExemption" message
*/
const GetMinimumBalanceForRentExemptionRpcResult = jsonRpcResult(number());
const ConfirmedTransactionResult = pick({
signatures: array(string()),
message: pick({
accountKeys: array(string()),
header: pick({
numRequiredSignatures: number(),
numReadonlySignedAccounts: number(),
numReadonlyUnsignedAccounts: number(),
}),
instructions: array(
pick({
accounts: array(number()),
data: string(),
programIdIndex: number(),
}),
),
recentBlockhash: string(),
}),
});
const ParsedInstructionResult = pick({
parsed: unknown(),
program: string(),
programId: PublicKeyFromString,
});
const RawInstructionResult = pick({
accounts: array(PublicKeyFromString),
data: string(),
programId: PublicKeyFromString,
});
const InstructionResult = union([
RawInstructionResult,
ParsedInstructionResult,
]);
const UnknownInstructionResult = union([
pick({
parsed: unknown(),
program: string(),
programId: string(),
}),
pick({
accounts: array(string()),
data: string(),
programId: string(),
}),
]);
const ParsedOrRawInstruction = coerce(
InstructionResult,
UnknownInstructionResult,
value => {
if ('accounts' in value) {
return create(value, RawInstructionResult);
} else {
return create(value, ParsedInstructionResult);
}
},
);
/**
* @internal
*/
const ParsedConfirmedTransactionResult = pick({
signatures: array(string()),
message: pick({
accountKeys: array(
pick({
pubkey: PublicKeyFromString,
signer: boolean(),
writable: boolean(),
}),
),
instructions: array(ParsedOrRawInstruction),
recentBlockhash: string(),
}),
});
const TokenBalanceResult = pick({
accountIndex: number(),
mint: string(),
owner: optional(string()),
uiTokenAmount: TokenAmountResult,
});
/**
* @internal
*/
const ConfirmedTransactionMetaResult = pick({
err: TransactionErrorResult,
fee: number(),
innerInstructions: optional(
nullable(
array(
pick({
index: number(),
instructions: array(
pick({
accounts: array(number()),
data: string(),
programIdIndex: number(),
}),
),
}),
),
),
),
preBalances: array(number()),
postBalances: array(number()),
logMessages: optional(nullable(array(string()))),
preTokenBalances: optional(nullable(array(TokenBalanceResult))),
postTokenBalances: optional(nullable(array(TokenBalanceResult))),
});
/**
* @internal
*/
const ParsedConfirmedTransactionMetaResult = pick({
err: TransactionErrorResult,
fee: number(),
innerInstructions: optional(
nullable(
array(
pick({
index: number(),
instructions: array(ParsedOrRawInstruction),
}),
),
),
),
preBalances: array(number()),
postBalances: array(number()),
logMessages: optional(nullable(array(string()))),
preTokenBalances: optional(nullable(array(TokenBalanceResult))),
postTokenBalances: optional(nullable(array(TokenBalanceResult))),
});
/**
* Expected JSON RPC response for the "getBlock" message
*/
const GetBlockRpcResult = jsonRpcResult(
nullable(
pick({
blockhash: string(),
previousBlockhash: string(),
parentSlot: number(),
transactions: array(
pick({
transaction: ConfirmedTransactionResult,
meta: nullable(ConfirmedTransactionMetaResult),
}),
),
rewards: optional(
array(
pick({
pubkey: string(),
lamports: number(),
postBalance: nullable(number()),
rewardType: nullable(string()),
}),
),
),
blockTime: nullable(number()),
blockHeight: nullable(number()),
}),
),
);
/**
* Expected JSON RPC response for the "getConfirmedBlock" message
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link GetBlockRpcResult} instead.
*/
const GetConfirmedBlockRpcResult = jsonRpcResult(
nullable(
pick({
blockhash: string(),
previousBlockhash: string(),
parentSlot: number(),
transactions: array(
pick({
transaction: ConfirmedTransactionResult,
meta: nullable(ConfirmedTransactionMetaResult),
}),
),
rewards: optional(
array(
pick({
pubkey: string(),
lamports: number(),
postBalance: nullable(number()),
rewardType: nullable(string()),
}),
),
),
blockTime: nullable(number()),
}),
),
);
/**
* Expected JSON RPC response for the "getBlock" message
*/
const GetBlockSignaturesRpcResult = jsonRpcResult(
nullable(
pick({
blockhash: string(),
previousBlockhash: string(),
parentSlot: number(),
signatures: array(string()),
blockTime: nullable(number()),
}),
),
);
/**
* Expected JSON RPC response for the "getTransaction" message
*/
const GetTransactionRpcResult = jsonRpcResult(
nullable(
pick({
slot: number(),
meta: ConfirmedTransactionMetaResult,
blockTime: optional(nullable(number())),
transaction: ConfirmedTransactionResult,
}),
),
);
/**
* Expected parsed JSON RPC response for the "getTransaction" message
*/
const GetParsedTransactionRpcResult = jsonRpcResult(
nullable(
pick({
slot: number(),
transaction: ParsedConfirmedTransactionResult,
meta: nullable(ParsedConfirmedTransactionMetaResult),
blockTime: optional(nullable(number())),
}),
),
);
/**
* Expected JSON RPC response for the "getRecentBlockhash" message
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link GetLatestBlockhashRpcResult} instead.
*/
const GetRecentBlockhashAndContextRpcResult = jsonRpcResultAndContext(
pick({
blockhash: string(),
feeCalculator: pick({
lamportsPerSignature: number(),
}),
}),
);
/**
* Expected JSON RPC response for the "getLatestBlockhash" message
*/
const GetLatestBlockhashRpcResult = jsonRpcResultAndContext(
pick({
blockhash: string(),
lastValidBlockHeight: number(),
}),
);
const PerfSampleResult = pick({
slot: number(),
numTransactions: number(),
numSlots: number(),
samplePeriodSecs: number(),
});
/*
* Expected JSON RPC response for "getRecentPerformanceSamples" message
*/
const GetRecentPerformanceSamplesRpcResult = jsonRpcResult(
array(PerfSampleResult),
);
/**
* Expected JSON RPC response for the "getFeeCalculatorForBlockhash" message
*/
const GetFeeCalculatorRpcResult = jsonRpcResultAndContext(
nullable(
pick({
feeCalculator: pick({
lamportsPerSignature: number(),
}),
}),
),
);
/**
* Expected JSON RPC response for the "requestAirdrop" message
*/
const RequestAirdropRpcResult = jsonRpcResult(string());
/**
* Expected JSON RPC response for the "sendTransaction" message
*/
const SendTransactionRpcResult = jsonRpcResult(string());
/**
* Information about the latest slot being processed by a node
*/
export type SlotInfo = {
/** Currently processing slot */
slot: number;
/** Parent of the current slot */
parent: number;
/** The root block of the current slot's fork */
root: number;
};
/**
* Parsed account data
*/
export type ParsedAccountData = {
/** Name of the program that owns this account */
program: string;
/** Parsed account data */
parsed: any;
/** Space used by account data */
space: number;
};
/**
* Stake Activation data
*/
export type StakeActivationData = {
/** the stake account's activation state */
state: 'active' | 'inactive' | 'activating' | 'deactivating';
/** stake active during the epoch */
active: number;
/** stake inactive during the epoch */
inactive: number;
};
/**
* Data slice argument for getProgramAccounts
*/
export type DataSlice = {
/** offset of data slice */
offset: number;
/** length of data slice */
length: number;
};
/**
* Memory comparison filter for getProgramAccounts
*/
export type MemcmpFilter = {
memcmp: {
/** offset into program account data to start comparison */
offset: number;
/** data to match, as base-58 encoded string and limited to less than 129 bytes */
bytes: string;
};
};
/**
* Data size comparison filter for getProgramAccounts
*/
export type DataSizeFilter = {
/** Size of data for program account data length comparison */
dataSize: number;
};
/**
* A filter object for getProgramAccounts
*/
export type GetProgramAccountsFilter = MemcmpFilter | DataSizeFilter;
/**
* Configuration object for getProgramAccounts requests
*/
export type GetProgramAccountsConfig = {
/** Optional commitment level */
commitment?: Commitment;
/** Optional encoding for account data (default base64)
* To use "jsonParsed" encoding, please refer to `getParsedProgramAccounts` in connection.ts
* */
encoding?: 'base64';
/** Optional data slice to limit the returned account data */
dataSlice?: DataSlice;
/** Optional array of filters to apply to accounts */
filters?: GetProgramAccountsFilter[];
};
/**
* Configuration object for getParsedProgramAccounts
*/
export type GetParsedProgramAccountsConfig = {
/** Optional commitment level */
commitment?: Commitment;
/** Optional array of filters to apply to accounts */
filters?: GetProgramAccountsFilter[];
};
/**
* Configuration object for getMultipleAccounts
*/
export type GetMultipleAccountsConfig = {
/** Optional commitment level */
commitment?: Commitment;
/** Optional encoding for account data (default base64) */
encoding?: 'base64' | 'jsonParsed';
};
/**
* Information describing an account
*/
export type AccountInfo<T> = {
/** `true` if this account's data contains a loaded program */
executable: boolean;
/** Identifier of the program that owns the account */
owner: PublicKey;
/** Number of lamports assigned to the account */
lamports: number;
/** Optional data assigned to the account */
data: T;
/** Optional rent epoch info for account */
rentEpoch?: number;
};
/**
* Account information identified by pubkey
*/
export type KeyedAccountInfo = {
accountId: PublicKey;
accountInfo: AccountInfo<Buffer>;
};
/**
* Callback function for account change notifications
*/
export type AccountChangeCallback = (
accountInfo: AccountInfo<Buffer>,
context: Context,
) => void;
/**
* @internal
*/
type SubscriptionId = 'subscribing' | number;
/**
* @internal
*/
type AccountSubscriptionInfo = {
publicKey: string; // PublicKey of the account as a base 58 string
callback: AccountChangeCallback;
commitment?: Commitment;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
};
/**
* Callback function for program account change notifications
*/
export type ProgramAccountChangeCallback = (
keyedAccountInfo: KeyedAccountInfo,
context: Context,
) => void;
/**
* @internal
*/
type ProgramAccountSubscriptionInfo = {
programId: string; // PublicKey of the program as a base 58 string
callback: ProgramAccountChangeCallback;
commitment?: Commitment;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
filters?: GetProgramAccountsFilter[];
};
/**
* Callback function for slot change notifications
*/
export type SlotChangeCallback = (slotInfo: SlotInfo) => void;
/**
* @internal
*/
type SlotSubscriptionInfo = {
callback: SlotChangeCallback;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
};
/**
* Callback function for slot update notifications
*/
export type SlotUpdateCallback = (slotUpdate: SlotUpdate) => void;
/**
* @private
*/
type SlotUpdateSubscriptionInfo = {
callback: SlotUpdateCallback;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
};
/**
* Callback function for signature status notifications
*/
export type SignatureResultCallback = (
signatureResult: SignatureResult,
context: Context,
) => void;
/**
* Signature status notification with transaction result
*/
export type SignatureStatusNotification = {
type: 'status';
result: SignatureResult;
};
/**
* Signature received notification
*/
export type SignatureReceivedNotification = {
type: 'received';
};
/**
* Callback function for signature notifications
*/
export type SignatureSubscriptionCallback = (
notification: SignatureStatusNotification | SignatureReceivedNotification,
context: Context,
) => void;
/**
* Signature subscription options
*/
export type SignatureSubscriptionOptions = {
commitment?: Commitment;
enableReceivedNotification?: boolean;
};
/**
* @internal
*/
type SignatureSubscriptionInfo = {
signature: TransactionSignature; // TransactionSignature as a base 58 string
callback: SignatureSubscriptionCallback;
options?: SignatureSubscriptionOptions;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
};
/**
* Callback function for root change notifications
*/
export type RootChangeCallback = (root: number) => void;
/**
* @internal
*/
type RootSubscriptionInfo = {
callback: RootChangeCallback;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
};
/**
* @internal
*/
const LogsResult = pick({
err: TransactionErrorResult,
logs: array(string()),
signature: string(),
});
/**
* Logs result.
*/
export type Logs = {
err: TransactionError | null;
logs: string[];
signature: string;
};
/**
* Expected JSON RPC response for the "logsNotification" message.
*/
const LogsNotificationResult = pick({
result: notificationResultAndContext(LogsResult),
subscription: number(),
});
/**
* Filter for log subscriptions.
*/
export type LogsFilter = PublicKey | 'all' | 'allWithVotes';
/**
* Callback function for log notifications.
*/
export type LogsCallback = (logs: Logs, ctx: Context) => void;
/**
* @private
*/
type LogsSubscriptionInfo = {
callback: LogsCallback;
filter: LogsFilter;
subscriptionId: SubscriptionId | null; // null when there's no current server subscription id
commitment?: Commitment;
};
/**
* Signature result
*/
export type SignatureResult = {
err: TransactionError | null;
};
/**
* Transaction error
*/
export type TransactionError = {} | string;
/**
* Transaction confirmation status
* <pre>
* 'processed': Transaction landed in a block which has reached 1 confirmation by the connected node
* 'confirmed': Transaction landed in a block which has reached 1 confirmation by the cluster
* 'finalized': Transaction landed in a block which has been finalized by the cluster
* </pre>
*/
export type TransactionConfirmationStatus =
| 'processed'
| 'confirmed'
| 'finalized';
/**
* Signature status
*/
export type SignatureStatus = {
/** when the transaction was processed */
slot: number;
/** the number of blocks that have been confirmed and voted on in the fork containing `slot` */
confirmations: number | null;
/** transaction error, if any */
err: TransactionError | null;
/** cluster confirmation status, if data available. Possible responses: `processed`, `confirmed`, `finalized` */
confirmationStatus?: TransactionConfirmationStatus;
};
/**
* A confirmed signature with its status
*/
export type ConfirmedSignatureInfo = {
/** the transaction signature */
signature: string;
/** when the transaction was processed */
slot: number;
/** error, if any */
err: TransactionError | null;
/** memo associated with the transaction, if any */
memo: string | null;
/** The unix timestamp of when the transaction was processed */
blockTime?: number | null;
};
/**
* An object defining headers to be passed to the RPC server
*/
export type HttpHeaders = {[header: string]: string};
/**
* A callback used to augment the outgoing HTTP request
*/
export type FetchMiddleware = (
url: string,
options: any,
fetch: (modifiedUrl: string, modifiedOptions: any) => void,
) => void;
/**
* Configuration for instantiating a Connection
*/
export type ConnectionConfig = {
/** Optional commitment level */
commitment?: Commitment;
/** Optional endpoint URL to the fullnode JSON RPC PubSub WebSocket Endpoint */
wsEndpoint?: string;
/** Optional HTTP headers object */
httpHeaders?: HttpHeaders;
/** Optional custom fetch function */
fetch?: typeof crossFetch;
/** Optional fetch middleware callback */
fetchMiddleware?: FetchMiddleware;
/** Optional Disable retrying calls when server responds with HTTP 429 (Too Many Requests) */
disableRetryOnRateLimit?: boolean;
/** time to allow for the server to initially process a transaction (in milliseconds) */
confirmTransactionInitialTimeout?: number;
};
/**
* A connection to a fullnode JSON RPC endpoint
*/
export class Connection {
/** @internal */ _commitment?: Commitment;
/** @internal */ _confirmTransactionInitialTimeout?: number;
/** @internal */ _rpcEndpoint: string;
/** @internal */ _rpcWsEndpoint: string;
/** @internal */ _rpcClient: RpcClient;
/** @internal */ _rpcRequest: RpcRequest;
/** @internal */ _rpcBatchRequest: RpcBatchRequest;
/** @internal */ _rpcWebSocket: RpcWebSocketClient;
/** @internal */ _rpcWebSocketConnected: boolean = false;
/** @internal */ _rpcWebSocketHeartbeat: ReturnType<
typeof setInterval
> | null = null;
/** @internal */ _rpcWebSocketIdleTimeout: ReturnType<
typeof setTimeout
> | null = null;
/** @internal */ _disableBlockhashCaching: boolean = false;
/** @internal */ _pollingBlockhash: boolean = false;
/** @internal */ _blockhashInfo: {
recentBlockhash: Blockhash | null;
lastFetch: number;
simulatedSignatures: Array<string>;
transactionSignatures: Array<string>;
} = {
recentBlockhash: null,
lastFetch: 0,
transactionSignatures: [],
simulatedSignatures: [],
};
/** @internal */ _accountChangeSubscriptionCounter: number = 0;
/** @internal */ _accountChangeSubscriptions: {
[id: number]: AccountSubscriptionInfo;
} = {};
/** @internal */ _programAccountChangeSubscriptionCounter: number = 0;
/** @internal */ _programAccountChangeSubscriptions: {
[id: number]: ProgramAccountSubscriptionInfo;
} = {};
/** @internal */ _rootSubscriptionCounter: number = 0;
/** @internal */ _rootSubscriptions: {
[id: number]: RootSubscriptionInfo;
} = {};
/** @internal */ _signatureSubscriptionCounter: number = 0;
/** @internal */ _signatureSubscriptions: {
[id: number]: SignatureSubscriptionInfo;
} = {};
/** @internal */ _slotSubscriptionCounter: number = 0;
/** @internal */ _slotSubscriptions: {
[id: number]: SlotSubscriptionInfo;
} = {};
/** @internal */ _logsSubscriptionCounter: number = 0;
/** @internal */ _logsSubscriptions: {
[id: number]: LogsSubscriptionInfo;
} = {};
/** @internal */ _slotUpdateSubscriptionCounter: number = 0;
/** @internal */ _slotUpdateSubscriptions: {
[id: number]: SlotUpdateSubscriptionInfo;
} = {};
/**
* Establish a JSON RPC connection
*
* @param endpoint URL to the fullnode JSON RPC endpoint
* @param commitmentOrConfig optional default commitment level or optional ConnectionConfig configuration object
*/
constructor(
endpoint: string,
commitmentOrConfig?: Commitment | ConnectionConfig,
) {
let url = new URL(endpoint);
const useHttps = url.protocol === 'https:';
let wsEndpoint;
let httpHeaders;
let fetch;
let fetchMiddleware;
let disableRetryOnRateLimit;
if (commitmentOrConfig && typeof commitmentOrConfig === 'string') {
this._commitment = commitmentOrConfig;
} else if (commitmentOrConfig) {
this._commitment = commitmentOrConfig.commitment;
this._confirmTransactionInitialTimeout =
commitmentOrConfig.confirmTransactionInitialTimeout;
wsEndpoint = commitmentOrConfig.wsEndpoint;
httpHeaders = commitmentOrConfig.httpHeaders;
fetch = commitmentOrConfig.fetch;
fetchMiddleware = commitmentOrConfig.fetchMiddleware;
disableRetryOnRateLimit = commitmentOrConfig.disableRetryOnRateLimit;
}
this._rpcEndpoint = endpoint;
this._rpcWsEndpoint = wsEndpoint || makeWebsocketUrl(endpoint);
this._rpcClient = createRpcClient(
url.toString(),
useHttps,
httpHeaders,
fetch,
fetchMiddleware,
disableRetryOnRateLimit,
);
this._rpcRequest = createRpcRequest(this._rpcClient);
this._rpcBatchRequest = createRpcBatchRequest(this._rpcClient);
this._rpcWebSocket = new RpcWebSocketClient(this._rpcWsEndpoint, {
autoconnect: false,
max_reconnects: Infinity,
});
this._rpcWebSocket.on('open', this._wsOnOpen.bind(this));
this._rpcWebSocket.on('error', this._wsOnError.bind(this));
this._rpcWebSocket.on('close', this._wsOnClose.bind(this));
this._rpcWebSocket.on(
'accountNotification',
this._wsOnAccountNotification.bind(this),
);
this._rpcWebSocket.on(
'programNotification',
this._wsOnProgramAccountNotification.bind(this),
);
this._rpcWebSocket.on(
'slotNotification',
this._wsOnSlotNotification.bind(this),
);
this._rpcWebSocket.on(
'slotsUpdatesNotification',
this._wsOnSlotUpdatesNotification.bind(this),
);
this._rpcWebSocket.on(
'signatureNotification',
this._wsOnSignatureNotification.bind(this),
);
this._rpcWebSocket.on(
'rootNotification',
this._wsOnRootNotification.bind(this),
);
this._rpcWebSocket.on(
'logsNotification',
this._wsOnLogsNotification.bind(this),
);
}
/**
* The default commitment used for requests
*/
get commitment(): Commitment | undefined {
return this._commitment;
}
/**
* The RPC endpoint
*/
get rpcEndpoint(): string {
return this._rpcEndpoint;
}
/**
* Fetch the balance for the specified public key, return with context
*/
async getBalanceAndContext(
publicKey: PublicKey,
commitment?: Commitment,
): Promise<RpcResponseAndContext<number>> {
const args = this._buildArgs([publicKey.toBase58()], commitment);
const unsafeRes = await this._rpcRequest('getBalance', args);
const res = create(unsafeRes, jsonRpcResultAndContext(number()));
if ('error' in res) {
throw new Error(
'failed to get balance for ' +
publicKey.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Fetch the balance for the specified public key
*/
async getBalance(
publicKey: PublicKey,
commitment?: Commitment,
): Promise<number> {
return await this.getBalanceAndContext(publicKey, commitment)
.then(x => x.value)
.catch(e => {
throw new Error(
'failed to get balance of account ' + publicKey.toBase58() + ': ' + e,
);
});
}
/**
* Fetch the estimated production time of a block
*/
async getBlockTime(slot: number): Promise<number | null> {
const unsafeRes = await this._rpcRequest('getBlockTime', [slot]);
const res = create(unsafeRes, jsonRpcResult(nullable(number())));
if ('error' in res) {
throw new Error(
'failed to get block time for slot ' + slot + ': ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch the lowest slot that the node has information about in its ledger.
* This value may increase over time if the node is configured to purge older ledger data
*/
async getMinimumLedgerSlot(): Promise<number> {
const unsafeRes = await this._rpcRequest('minimumLedgerSlot', []);
const res = create(unsafeRes, jsonRpcResult(number()));
if ('error' in res) {
throw new Error(
'failed to get minimum ledger slot: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch the slot of the lowest confirmed block that has not been purged from the ledger
*/
async getFirstAvailableBlock(): Promise<number> {
const unsafeRes = await this._rpcRequest('getFirstAvailableBlock', []);
const res = create(unsafeRes, SlotRpcResult);
if ('error' in res) {
throw new Error(
'failed to get first available block: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch information about the current supply
*/
async getSupply(
config?: GetSupplyConfig | Commitment,
): Promise<RpcResponseAndContext<Supply>> {
let configArg: GetSupplyConfig = {};
if (typeof config === 'string') {
configArg = {commitment: config};
} else if (config) {
configArg = {
...config,
commitment: (config && config.commitment) || this.commitment,
};
} else {
configArg = {
commitment: this.commitment,
};
}
const unsafeRes = await this._rpcRequest('getSupply', [configArg]);
const res = create(unsafeRes, GetSupplyRpcResult);
if ('error' in res) {
throw new Error('failed to get supply: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current supply of a token mint
*/
async getTokenSupply(
tokenMintAddress: PublicKey,
commitment?: Commitment,
): Promise<RpcResponseAndContext<TokenAmount>> {
const args = this._buildArgs([tokenMintAddress.toBase58()], commitment);
const unsafeRes = await this._rpcRequest('getTokenSupply', args);
const res = create(unsafeRes, jsonRpcResultAndContext(TokenAmountResult));
if ('error' in res) {
throw new Error('failed to get token supply: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current balance of a token account
*/
async getTokenAccountBalance(
tokenAddress: PublicKey,
commitment?: Commitment,
): Promise<RpcResponseAndContext<TokenAmount>> {
const args = this._buildArgs([tokenAddress.toBase58()], commitment);
const unsafeRes = await this._rpcRequest('getTokenAccountBalance', args);
const res = create(unsafeRes, jsonRpcResultAndContext(TokenAmountResult));
if ('error' in res) {
throw new Error(
'failed to get token account balance: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch all the token accounts owned by the specified account
*
* @return {Promise<RpcResponseAndContext<Array<{pubkey: PublicKey, account: AccountInfo<Buffer>}>>>}
*/
async getTokenAccountsByOwner(
ownerAddress: PublicKey,
filter: TokenAccountsFilter,
commitment?: Commitment,
): Promise<
RpcResponseAndContext<
Array<{pubkey: PublicKey; account: AccountInfo<Buffer>}>
>
> {
let _args: any[] = [ownerAddress.toBase58()];
if ('mint' in filter) {
_args.push({mint: filter.mint.toBase58()});
} else {
_args.push({programId: filter.programId.toBase58()});
}
const args = this._buildArgs(_args, commitment, 'base64');
const unsafeRes = await this._rpcRequest('getTokenAccountsByOwner', args);
const res = create(unsafeRes, GetTokenAccountsByOwner);
if ('error' in res) {
throw new Error(
'failed to get token accounts owned by account ' +
ownerAddress.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Fetch parsed token accounts owned by the specified account
*
* @return {Promise<RpcResponseAndContext<Array<{pubkey: PublicKey, account: AccountInfo<ParsedAccountData>}>>>}
*/
async getParsedTokenAccountsByOwner(
ownerAddress: PublicKey,
filter: TokenAccountsFilter,
commitment?: Commitment,
): Promise<
RpcResponseAndContext<
Array<{pubkey: PublicKey; account: AccountInfo<ParsedAccountData>}>
>
> {
let _args: any[] = [ownerAddress.toBase58()];
if ('mint' in filter) {
_args.push({mint: filter.mint.toBase58()});
} else {
_args.push({programId: filter.programId.toBase58()});
}
const args = this._buildArgs(_args, commitment, 'jsonParsed');
const unsafeRes = await this._rpcRequest('getTokenAccountsByOwner', args);
const res = create(unsafeRes, GetParsedTokenAccountsByOwner);
if ('error' in res) {
throw new Error(
'failed to get token accounts owned by account ' +
ownerAddress.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Fetch the 20 largest accounts with their current balances
*/
async getLargestAccounts(
config?: GetLargestAccountsConfig,
): Promise<RpcResponseAndContext<Array<AccountBalancePair>>> {
const arg = {
...config,
commitment: (config && config.commitment) || this.commitment,
};
const args = arg.filter || arg.commitment ? [arg] : [];
const unsafeRes = await this._rpcRequest('getLargestAccounts', args);
const res = create(unsafeRes, GetLargestAccountsRpcResult);
if ('error' in res) {
throw new Error('failed to get largest accounts: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the 20 largest token accounts with their current balances
* for a given mint.
*/
async getTokenLargestAccounts(
mintAddress: PublicKey,
commitment?: Commitment,
): Promise<RpcResponseAndContext<Array<TokenAccountBalancePair>>> {
const args = this._buildArgs([mintAddress.toBase58()], commitment);
const unsafeRes = await this._rpcRequest('getTokenLargestAccounts', args);
const res = create(unsafeRes, GetTokenLargestAccountsResult);
if ('error' in res) {
throw new Error(
'failed to get token largest accounts: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch all the account info for the specified public key, return with context
*/
async getAccountInfoAndContext(
publicKey: PublicKey,
commitment?: Commitment,
): Promise<RpcResponseAndContext<AccountInfo<Buffer> | null>> {
const args = this._buildArgs([publicKey.toBase58()], commitment, 'base64');
const unsafeRes = await this._rpcRequest('getAccountInfo', args);
const res = create(
unsafeRes,
jsonRpcResultAndContext(nullable(AccountInfoResult)),
);
if ('error' in res) {
throw new Error(
'failed to get info about account ' +
publicKey.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Fetch parsed account info for the specified public key
*/
async getParsedAccountInfo(
publicKey: PublicKey,
commitment?: Commitment,
): Promise<
RpcResponseAndContext<AccountInfo<Buffer | ParsedAccountData> | null>
> {
const args = this._buildArgs(
[publicKey.toBase58()],
commitment,
'jsonParsed',
);
const unsafeRes = await this._rpcRequest('getAccountInfo', args);
const res = create(
unsafeRes,
jsonRpcResultAndContext(nullable(ParsedAccountInfoResult)),
);
if ('error' in res) {
throw new Error(
'failed to get info about account ' +
publicKey.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Fetch all the account info for the specified public key
*/
async getAccountInfo(
publicKey: PublicKey,
commitment?: Commitment,
): Promise<AccountInfo<Buffer> | null> {
try {
const res = await this.getAccountInfoAndContext(publicKey, commitment);
return res.value;
} catch (e) {
throw new Error(
'failed to get info about account ' + publicKey.toBase58() + ': ' + e,
);
}
}
/**
* Fetch all the account info for multiple accounts specified by an array of public keys, return with context
*/
async getMultipleAccountsInfoAndContext(
publicKeys: PublicKey[],
commitment?: Commitment,
): Promise<RpcResponseAndContext<(AccountInfo<Buffer> | null)[]>> {
const keys = publicKeys.map(key => key.toBase58());
const args = this._buildArgs([keys], commitment, 'base64');
const unsafeRes = await this._rpcRequest('getMultipleAccounts', args);
const res = create(
unsafeRes,
jsonRpcResultAndContext(array(nullable(AccountInfoResult))),
);
if ('error' in res) {
throw new Error(
'failed to get info for accounts ' + keys + ': ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch all the account info for multiple accounts specified by an array of public keys
*/
async getMultipleAccountsInfo(
publicKeys: PublicKey[],
commitment?: Commitment,
): Promise<(AccountInfo<Buffer> | null)[]> {
const res = await this.getMultipleAccountsInfoAndContext(
publicKeys,
commitment,
);
return res.value;
}
/**
* Returns epoch activation information for a stake account that has been delegated
*/
async getStakeActivation(
publicKey: PublicKey,
commitment?: Commitment,
epoch?: number,
): Promise<StakeActivationData> {
const args = this._buildArgs(
[publicKey.toBase58()],
commitment,
undefined,
epoch !== undefined ? {epoch} : undefined,
);
const unsafeRes = await this._rpcRequest('getStakeActivation', args);
const res = create(unsafeRes, jsonRpcResult(StakeActivationResult));
if ('error' in res) {
throw new Error(
`failed to get Stake Activation ${publicKey.toBase58()}: ${
res.error.message
}`,
);
}
return res.result;
}
/**
* Fetch all the accounts owned by the specified program id
*
* @return {Promise<Array<{pubkey: PublicKey, account: AccountInfo<Buffer>}>>}
*/
async getProgramAccounts(
programId: PublicKey,
configOrCommitment?: GetProgramAccountsConfig | Commitment,
): Promise<Array<{pubkey: PublicKey; account: AccountInfo<Buffer>}>> {
const extra: Pick<GetProgramAccountsConfig, 'dataSlice' | 'filters'> = {};
let commitment;
let encoding;
if (configOrCommitment) {
if (typeof configOrCommitment === 'string') {
commitment = configOrCommitment;
} else {
commitment = configOrCommitment.commitment;
encoding = configOrCommitment.encoding;
if (configOrCommitment.dataSlice) {
extra.dataSlice = configOrCommitment.dataSlice;
}
if (configOrCommitment.filters) {
extra.filters = configOrCommitment.filters;
}
}
}
const args = this._buildArgs(
[programId.toBase58()],
commitment,
encoding || 'base64',
extra,
);
const unsafeRes = await this._rpcRequest('getProgramAccounts', args);
const res = create(unsafeRes, jsonRpcResult(array(KeyedAccountInfoResult)));
if ('error' in res) {
throw new Error(
'failed to get accounts owned by program ' +
programId.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Fetch and parse all the accounts owned by the specified program id
*
* @return {Promise<Array<{pubkey: PublicKey, account: AccountInfo<Buffer | ParsedAccountData>}>>}
*/
async getParsedProgramAccounts(
programId: PublicKey,
configOrCommitment?: GetParsedProgramAccountsConfig | Commitment,
): Promise<
Array<{
pubkey: PublicKey;
account: AccountInfo<Buffer | ParsedAccountData>;
}>
> {
const extra: Pick<GetParsedProgramAccountsConfig, 'filters'> = {};
let commitment;
if (configOrCommitment) {
if (typeof configOrCommitment === 'string') {
commitment = configOrCommitment;
} else {
commitment = configOrCommitment.commitment;
if (configOrCommitment.filters) {
extra.filters = configOrCommitment.filters;
}
}
}
const args = this._buildArgs(
[programId.toBase58()],
commitment,
'jsonParsed',
extra,
);
const unsafeRes = await this._rpcRequest('getProgramAccounts', args);
const res = create(
unsafeRes,
jsonRpcResult(array(KeyedParsedAccountInfoResult)),
);
if ('error' in res) {
throw new Error(
'failed to get accounts owned by program ' +
programId.toBase58() +
': ' +
res.error.message,
);
}
return res.result;
}
/**
* Confirm the transaction identified by the specified signature.
*/
async confirmTransaction(
signature: TransactionSignature,
commitment?: Commitment,
): Promise<RpcResponseAndContext<SignatureResult>> {
let decodedSignature;
try {
decodedSignature = bs58.decode(signature);
} catch (err) {
throw new Error('signature must be base58 encoded: ' + signature);
}
assert(decodedSignature.length === 64, 'signature has invalid length');
const start = Date.now();
const subscriptionCommitment = commitment || this.commitment;
let subscriptionId;
let response: RpcResponseAndContext<SignatureResult> | null = null;
const confirmPromise = new Promise((resolve, reject) => {
try {
subscriptionId = this.onSignature(
signature,
(result: SignatureResult, context: Context) => {
subscriptionId = undefined;
response = {
context,
value: result,
};
resolve(null);
},
subscriptionCommitment,
);
} catch (err) {
reject(err);
}
});
let timeoutMs = this._confirmTransactionInitialTimeout || 60 * 1000;
switch (subscriptionCommitment) {
case 'processed':
case 'recent':
case 'single':
case 'confirmed':
case 'singleGossip': {
timeoutMs = this._confirmTransactionInitialTimeout || 30 * 1000;
break;
}
// exhaust enums to ensure full coverage
case 'finalized':
case 'max':
case 'root':
}
try {
await promiseTimeout(confirmPromise, timeoutMs);
} finally {
if (subscriptionId) {
this.removeSignatureListener(subscriptionId);
}
}
if (response === null) {
const duration = (Date.now() - start) / 1000;
throw new Error(
`Transaction was not confirmed in ${duration.toFixed(
2,
)} seconds. It is unknown if it succeeded or failed. Check signature ${signature} using the Solana Explorer or CLI tools.`,
);
}
return response;
}
/**
* Return the list of nodes that are currently participating in the cluster
*/
async getClusterNodes(): Promise<Array<ContactInfo>> {
const unsafeRes = await this._rpcRequest('getClusterNodes', []);
const res = create(unsafeRes, jsonRpcResult(array(ContactInfoResult)));
if ('error' in res) {
throw new Error('failed to get cluster nodes: ' + res.error.message);
}
return res.result;
}
/**
* Return the list of nodes that are currently participating in the cluster
*/
async getVoteAccounts(commitment?: Commitment): Promise<VoteAccountStatus> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getVoteAccounts', args);
const res = create(unsafeRes, GetVoteAccounts);
if ('error' in res) {
throw new Error('failed to get vote accounts: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current slot that the node is processing
*/
async getSlot(commitment?: Commitment): Promise<number> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getSlot', args);
const res = create(unsafeRes, jsonRpcResult(number()));
if ('error' in res) {
throw new Error('failed to get slot: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current slot leader of the cluster
*/
async getSlotLeader(commitment?: Commitment): Promise<string> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getSlotLeader', args);
const res = create(unsafeRes, jsonRpcResult(string()));
if ('error' in res) {
throw new Error('failed to get slot leader: ' + res.error.message);
}
return res.result;
}
/**
* Fetch `limit` number of slot leaders starting from `startSlot`
*
* @param startSlot fetch slot leaders starting from this slot
* @param limit number of slot leaders to return
*/
async getSlotLeaders(
startSlot: number,
limit: number,
): Promise<Array<PublicKey>> {
const args = [startSlot, limit];
const unsafeRes = await this._rpcRequest('getSlotLeaders', args);
const res = create(unsafeRes, jsonRpcResult(array(PublicKeyFromString)));
if ('error' in res) {
throw new Error('failed to get slot leaders: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current status of a signature
*/
async getSignatureStatus(
signature: TransactionSignature,
config?: SignatureStatusConfig,
): Promise<RpcResponseAndContext<SignatureStatus | null>> {
const {context, value: values} = await this.getSignatureStatuses(
[signature],
config,
);
assert(values.length === 1);
const value = values[0];
return {context, value};
}
/**
* Fetch the current statuses of a batch of signatures
*/
async getSignatureStatuses(
signatures: Array<TransactionSignature>,
config?: SignatureStatusConfig,
): Promise<RpcResponseAndContext<Array<SignatureStatus | null>>> {
const params: any[] = [signatures];
if (config) {
params.push(config);
}
const unsafeRes = await this._rpcRequest('getSignatureStatuses', params);
const res = create(unsafeRes, GetSignatureStatusesRpcResult);
if ('error' in res) {
throw new Error('failed to get signature status: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current transaction count of the cluster
*/
async getTransactionCount(commitment?: Commitment): Promise<number> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getTransactionCount', args);
const res = create(unsafeRes, jsonRpcResult(number()));
if ('error' in res) {
throw new Error('failed to get transaction count: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the current total currency supply of the cluster in lamports
*
* @deprecated Deprecated since v1.2.8. Please use {@link getSupply} instead.
*/
async getTotalSupply(commitment?: Commitment): Promise<number> {
const result = await this.getSupply({
commitment,
excludeNonCirculatingAccountsList: true,
});
return result.value.total;
}
/**
* Fetch the cluster InflationGovernor parameters
*/
async getInflationGovernor(
commitment?: Commitment,
): Promise<InflationGovernor> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getInflationGovernor', args);
const res = create(unsafeRes, GetInflationGovernorRpcResult);
if ('error' in res) {
throw new Error('failed to get inflation: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the inflation reward for a list of addresses for an epoch
*/
async getInflationReward(
addresses: PublicKey[],
epoch?: number,
commitment?: Commitment,
): Promise<(InflationReward | null)[]> {
const args = this._buildArgs(
[addresses.map(pubkey => pubkey.toBase58())],
commitment,
undefined,
{
epoch,
},
);
const unsafeRes = await this._rpcRequest('getInflationReward', args);
const res = create(unsafeRes, GetInflationRewardResult);
if ('error' in res) {
throw new Error('failed to get inflation reward: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the Epoch Info parameters
*/
async getEpochInfo(commitment?: Commitment): Promise<EpochInfo> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getEpochInfo', args);
const res = create(unsafeRes, GetEpochInfoRpcResult);
if ('error' in res) {
throw new Error('failed to get epoch info: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the Epoch Schedule parameters
*/
async getEpochSchedule(): Promise<EpochSchedule> {
const unsafeRes = await this._rpcRequest('getEpochSchedule', []);
const res = create(unsafeRes, GetEpochScheduleRpcResult);
if ('error' in res) {
throw new Error('failed to get epoch schedule: ' + res.error.message);
}
const epochSchedule = res.result;
return new EpochSchedule(
epochSchedule.slotsPerEpoch,
epochSchedule.leaderScheduleSlotOffset,
epochSchedule.warmup,
epochSchedule.firstNormalEpoch,
epochSchedule.firstNormalSlot,
);
}
/**
* Fetch the leader schedule for the current epoch
* @return {Promise<RpcResponseAndContext<LeaderSchedule>>}
*/
async getLeaderSchedule(): Promise<LeaderSchedule> {
const unsafeRes = await this._rpcRequest('getLeaderSchedule', []);
const res = create(unsafeRes, GetLeaderScheduleRpcResult);
if ('error' in res) {
throw new Error('failed to get leader schedule: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the minimum balance needed to exempt an account of `dataLength`
* size from rent
*/
async getMinimumBalanceForRentExemption(
dataLength: number,
commitment?: Commitment,
): Promise<number> {
const args = this._buildArgs([dataLength], commitment);
const unsafeRes = await this._rpcRequest(
'getMinimumBalanceForRentExemption',
args,
);
const res = create(unsafeRes, GetMinimumBalanceForRentExemptionRpcResult);
if ('error' in res) {
console.warn('Unable to fetch minimum balance for rent exemption');
return 0;
}
return res.result;
}
/**
* Fetch a recent blockhash from the cluster, return with context
* @return {Promise<RpcResponseAndContext<{blockhash: Blockhash, feeCalculator: FeeCalculator}>>}
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getLatestBlockhash} instead.
*/
async getRecentBlockhashAndContext(
commitment?: Commitment,
): Promise<
RpcResponseAndContext<{blockhash: Blockhash; feeCalculator: FeeCalculator}>
> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getRecentBlockhash', args);
const res = create(unsafeRes, GetRecentBlockhashAndContextRpcResult);
if ('error' in res) {
throw new Error('failed to get recent blockhash: ' + res.error.message);
}
return res.result;
}
/**
* Fetch recent performance samples
* @return {Promise<Array<PerfSample>>}
*/
async getRecentPerformanceSamples(
limit?: number,
): Promise<Array<PerfSample>> {
const args = this._buildArgs(limit ? [limit] : []);
const unsafeRes = await this._rpcRequest(
'getRecentPerformanceSamples',
args,
);
const res = create(unsafeRes, GetRecentPerformanceSamplesRpcResult);
if ('error' in res) {
throw new Error(
'failed to get recent performance samples: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch the fee calculator for a recent blockhash from the cluster, return with context
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getFeeForMessage} instead.
*/
async getFeeCalculatorForBlockhash(
blockhash: Blockhash,
commitment?: Commitment,
): Promise<RpcResponseAndContext<FeeCalculator | null>> {
const args = this._buildArgs([blockhash], commitment);
const unsafeRes = await this._rpcRequest(
'getFeeCalculatorForBlockhash',
args,
);
const res = create(unsafeRes, GetFeeCalculatorRpcResult);
if ('error' in res) {
throw new Error('failed to get fee calculator: ' + res.error.message);
}
const {context, value} = res.result;
return {
context,
value: value !== null ? value.feeCalculator : null,
};
}
/**
* Fetch the fee for a message from the cluster, return with context
*/
async getFeeForMessage(
message: Message,
commitment?: Commitment,
): Promise<RpcResponseAndContext<number>> {
const wireMessage = message.serialize().toString('base64');
const args = this._buildArgs([wireMessage], commitment);
const unsafeRes = await this._rpcRequest('getFeeForMessage', args);
const res = create(unsafeRes, jsonRpcResultAndContext(nullable(number())));
if ('error' in res) {
throw new Error('failed to get slot: ' + res.error.message);
}
if (res.result === null) {
throw new Error('invalid blockhash');
}
return res.result as unknown as RpcResponseAndContext<number>;
}
/**
* Fetch a recent blockhash from the cluster
* @return {Promise<{blockhash: Blockhash, feeCalculator: FeeCalculator}>}
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getLatestBlockhash} instead.
*/
async getRecentBlockhash(
commitment?: Commitment,
): Promise<{blockhash: Blockhash; feeCalculator: FeeCalculator}> {
try {
const res = await this.getRecentBlockhashAndContext(commitment);
return res.value;
} catch (e) {
throw new Error('failed to get recent blockhash: ' + e);
}
}
/**
* Fetch the latest blockhash from the cluster
* @return {Promise<{blockhash: Blockhash, lastValidBlockHeight: number}>}
*/
async getLatestBlockhash(
commitment?: Commitment,
): Promise<{blockhash: Blockhash; lastValidBlockHeight: number}> {
try {
const res = await this.getLatestBlockhashAndContext(commitment);
return res.value;
} catch (e) {
throw new Error('failed to get recent blockhash: ' + e);
}
}
/**
* Fetch the latest blockhash from the cluster
* @return {Promise<{blockhash: Blockhash, lastValidBlockHeight: number}>}
*/
async getLatestBlockhashAndContext(
commitment?: Commitment,
): Promise<
RpcResponseAndContext<{blockhash: Blockhash; lastValidBlockHeight: number}>
> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getLatestBlockhash', args);
const res = create(unsafeRes, GetLatestBlockhashRpcResult);
if ('error' in res) {
throw new Error('failed to get latest blockhash: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the node version
*/
async getVersion(): Promise<Version> {
const unsafeRes = await this._rpcRequest('getVersion', []);
const res = create(unsafeRes, jsonRpcResult(VersionResult));
if ('error' in res) {
throw new Error('failed to get version: ' + res.error.message);
}
return res.result;
}
/**
* Fetch the genesis hash
*/
async getGenesisHash(): Promise<string> {
const unsafeRes = await this._rpcRequest('getGenesisHash', []);
const res = create(unsafeRes, jsonRpcResult(string()));
if ('error' in res) {
throw new Error('failed to get genesis hash: ' + res.error.message);
}
return res.result;
}
/**
* Fetch a processed block from the cluster.
*/
async getBlock(
slot: number,
opts?: {commitment?: Finality},
): Promise<BlockResponse | null> {
const args = this._buildArgsAtLeastConfirmed(
[slot],
opts && opts.commitment,
);
const unsafeRes = await this._rpcRequest('getBlock', args);
const res = create(unsafeRes, GetBlockRpcResult);
if ('error' in res) {
throw new Error('failed to get confirmed block: ' + res.error.message);
}
const result = res.result;
if (!result) return result;
return {
...result,
transactions: result.transactions.map(({transaction, meta}) => {
const message = new Message(transaction.message);
return {
meta,
transaction: {
...transaction,
message,
},
};
}),
};
}
/*
* Returns the current block height of the node
*/
async getBlockHeight(commitment?: Commitment): Promise<number> {
const args = this._buildArgs([], commitment);
const unsafeRes = await this._rpcRequest('getBlockHeight', args);
const res = create(unsafeRes, jsonRpcResult(number()));
if ('error' in res) {
throw new Error(
'failed to get block height information: ' + res.error.message,
);
}
return res.result;
}
/*
* Returns recent block production information from the current or previous epoch
*/
async getBlockProduction(
configOrCommitment?: GetBlockProductionConfig | Commitment,
): Promise<RpcResponseAndContext<BlockProduction>> {
let extra: Omit<GetBlockProductionConfig, 'commitment'> | undefined;
let commitment: Commitment | undefined;
if (typeof configOrCommitment === 'string') {
commitment = configOrCommitment;
} else if (configOrCommitment) {
const {commitment: c, ...rest} = configOrCommitment;
commitment = c;
extra = rest;
}
const args = this._buildArgs([], commitment, 'base64', extra);
const unsafeRes = await this._rpcRequest('getBlockProduction', args);
const res = create(unsafeRes, BlockProductionResponseStruct);
if ('error' in res) {
throw new Error(
'failed to get block production information: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch a confirmed or finalized transaction from the cluster.
*/
async getTransaction(
signature: string,
opts?: {commitment?: Finality},
): Promise<TransactionResponse | null> {
const args = this._buildArgsAtLeastConfirmed(
[signature],
opts && opts.commitment,
);
const unsafeRes = await this._rpcRequest('getTransaction', args);
const res = create(unsafeRes, GetTransactionRpcResult);
if ('error' in res) {
throw new Error('failed to get transaction: ' + res.error.message);
}
const result = res.result;
if (!result) return result;
return {
...result,
transaction: {
...result.transaction,
message: new Message(result.transaction.message),
},
};
}
/**
* Fetch parsed transaction details for a confirmed or finalized transaction
*/
async getParsedTransaction(
signature: TransactionSignature,
commitment?: Finality,
): Promise<ParsedConfirmedTransaction | null> {
const args = this._buildArgsAtLeastConfirmed(
[signature],
commitment,
'jsonParsed',
);
const unsafeRes = await this._rpcRequest('getTransaction', args);
const res = create(unsafeRes, GetParsedTransactionRpcResult);
if ('error' in res) {
throw new Error('failed to get transaction: ' + res.error.message);
}
return res.result;
}
/**
* Fetch parsed transaction details for a batch of confirmed transactions
*/
async getParsedTransactions(
signatures: TransactionSignature[],
commitment?: Finality,
): Promise<(ParsedConfirmedTransaction | null)[]> {
const batch = signatures.map(signature => {
const args = this._buildArgsAtLeastConfirmed(
[signature],
commitment,
'jsonParsed',
);
return {
methodName: 'getTransaction',
args,
};
});
const unsafeRes = await this._rpcBatchRequest(batch);
const res = unsafeRes.map((unsafeRes: any) => {
const res = create(unsafeRes, GetParsedTransactionRpcResult);
if ('error' in res) {
throw new Error('failed to get transactions: ' + res.error.message);
}
return res.result;
});
return res;
}
/**
* Fetch a list of Transactions and transaction statuses from the cluster
* for a confirmed block.
*
* @deprecated Deprecated since v1.13.0. Please use {@link getBlock} instead.
*/
async getConfirmedBlock(
slot: number,
commitment?: Finality,
): Promise<ConfirmedBlock> {
const args = this._buildArgsAtLeastConfirmed([slot], commitment);
const unsafeRes = await this._rpcRequest('getConfirmedBlock', args);
const res = create(unsafeRes, GetConfirmedBlockRpcResult);
if ('error' in res) {
throw new Error('failed to get confirmed block: ' + res.error.message);
}
const result = res.result;
if (!result) {
throw new Error('Confirmed block ' + slot + ' not found');
}
const block = {
...result,
transactions: result.transactions.map(({transaction, meta}) => {
const message = new Message(transaction.message);
return {
meta,
transaction: {
...transaction,
message,
},
};
}),
};
return {
...block,
transactions: block.transactions.map(({transaction, meta}) => {
return {
meta,
transaction: Transaction.populate(
transaction.message,
transaction.signatures,
),
};
}),
};
}
/**
* Fetch confirmed blocks between two slots
*/
async getBlocks(
startSlot: number,
endSlot?: number,
commitment?: Finality,
): Promise<Array<number>> {
const args = this._buildArgsAtLeastConfirmed(
endSlot !== undefined ? [startSlot, endSlot] : [startSlot],
commitment,
);
const unsafeRes = await this._rpcRequest('getBlocks', args);
const res = create(unsafeRes, jsonRpcResult(array(number())));
if ('error' in res) {
throw new Error('failed to get blocks: ' + res.error.message);
}
return res.result;
}
/**
* Fetch a list of Signatures from the cluster for a block, excluding rewards
*/
async getBlockSignatures(
slot: number,
commitment?: Finality,
): Promise<BlockSignatures> {
const args = this._buildArgsAtLeastConfirmed(
[slot],
commitment,
undefined,
{
transactionDetails: 'signatures',
rewards: false,
},
);
const unsafeRes = await this._rpcRequest('getBlock', args);
const res = create(unsafeRes, GetBlockSignaturesRpcResult);
if ('error' in res) {
throw new Error('failed to get block: ' + res.error.message);
}
const result = res.result;
if (!result) {
throw new Error('Block ' + slot + ' not found');
}
return result;
}
/**
* Fetch a list of Signatures from the cluster for a confirmed block, excluding rewards
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getBlockSignatures} instead.
*/
async getConfirmedBlockSignatures(
slot: number,
commitment?: Finality,
): Promise<BlockSignatures> {
const args = this._buildArgsAtLeastConfirmed(
[slot],
commitment,
undefined,
{
transactionDetails: 'signatures',
rewards: false,
},
);
const unsafeRes = await this._rpcRequest('getConfirmedBlock', args);
const res = create(unsafeRes, GetBlockSignaturesRpcResult);
if ('error' in res) {
throw new Error('failed to get confirmed block: ' + res.error.message);
}
const result = res.result;
if (!result) {
throw new Error('Confirmed block ' + slot + ' not found');
}
return result;
}
/**
* Fetch a transaction details for a confirmed transaction
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getTransaction} instead.
*/
async getConfirmedTransaction(
signature: TransactionSignature,
commitment?: Finality,
): Promise<ConfirmedTransaction | null> {
const args = this._buildArgsAtLeastConfirmed([signature], commitment);
const unsafeRes = await this._rpcRequest('getConfirmedTransaction', args);
const res = create(unsafeRes, GetTransactionRpcResult);
if ('error' in res) {
throw new Error('failed to get transaction: ' + res.error.message);
}
const result = res.result;
if (!result) return result;
const message = new Message(result.transaction.message);
const signatures = result.transaction.signatures;
return {
...result,
transaction: Transaction.populate(message, signatures),
};
}
/**
* Fetch parsed transaction details for a confirmed transaction
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getParsedTransaction} instead.
*/
async getParsedConfirmedTransaction(
signature: TransactionSignature,
commitment?: Finality,
): Promise<ParsedConfirmedTransaction | null> {
const args = this._buildArgsAtLeastConfirmed(
[signature],
commitment,
'jsonParsed',
);
const unsafeRes = await this._rpcRequest('getConfirmedTransaction', args);
const res = create(unsafeRes, GetParsedTransactionRpcResult);
if ('error' in res) {
throw new Error(
'failed to get confirmed transaction: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch parsed transaction details for a batch of confirmed transactions
*
* @deprecated Deprecated since Solana v1.8.0. Please use {@link getParsedTransactions} instead.
*/
async getParsedConfirmedTransactions(
signatures: TransactionSignature[],
commitment?: Finality,
): Promise<(ParsedConfirmedTransaction | null)[]> {
const batch = signatures.map(signature => {
const args = this._buildArgsAtLeastConfirmed(
[signature],
commitment,
'jsonParsed',
);
return {
methodName: 'getConfirmedTransaction',
args,
};
});
const unsafeRes = await this._rpcBatchRequest(batch);
const res = unsafeRes.map((unsafeRes: any) => {
const res = create(unsafeRes, GetParsedTransactionRpcResult);
if ('error' in res) {
throw new Error(
'failed to get confirmed transactions: ' + res.error.message,
);
}
return res.result;
});
return res;
}
/**
* Fetch a list of all the confirmed signatures for transactions involving an address
* within a specified slot range. Max range allowed is 10,000 slots.
*
* @deprecated Deprecated since v1.3. Please use {@link getConfirmedSignaturesForAddress2} instead.
*
* @param address queried address
* @param startSlot start slot, inclusive
* @param endSlot end slot, inclusive
*/
async getConfirmedSignaturesForAddress(
address: PublicKey,
startSlot: number,
endSlot: number,
): Promise<Array<TransactionSignature>> {
let options: any = {};
let firstAvailableBlock = await this.getFirstAvailableBlock();
while (!('until' in options)) {
startSlot--;
if (startSlot <= 0 || startSlot < firstAvailableBlock) {
break;
}
try {
const block = await this.getConfirmedBlockSignatures(
startSlot,
'finalized',
);
if (block.signatures.length > 0) {
options.until =
block.signatures[block.signatures.length - 1].toString();
}
} catch (err) {
if (err instanceof Error && err.message.includes('skipped')) {
continue;
} else {
throw err;
}
}
}
let highestConfirmedRoot = await this.getSlot('finalized');
while (!('before' in options)) {
endSlot++;
if (endSlot > highestConfirmedRoot) {
break;
}
try {
const block = await this.getConfirmedBlockSignatures(endSlot);
if (block.signatures.length > 0) {
options.before =
block.signatures[block.signatures.length - 1].toString();
}
} catch (err) {
if (err instanceof Error && err.message.includes('skipped')) {
continue;
} else {
throw err;
}
}
}
const confirmedSignatureInfo = await this.getConfirmedSignaturesForAddress2(
address,
options,
);
return confirmedSignatureInfo.map(info => info.signature);
}
/**
* Returns confirmed signatures for transactions involving an
* address backwards in time from the provided signature or most recent confirmed block
*
*
* @param address queried address
* @param options
*/
async getConfirmedSignaturesForAddress2(
address: PublicKey,
options?: ConfirmedSignaturesForAddress2Options,
commitment?: Finality,
): Promise<Array<ConfirmedSignatureInfo>> {
const args = this._buildArgsAtLeastConfirmed(
[address.toBase58()],
commitment,
undefined,
options,
);
const unsafeRes = await this._rpcRequest(
'getConfirmedSignaturesForAddress2',
args,
);
const res = create(unsafeRes, GetConfirmedSignaturesForAddress2RpcResult);
if ('error' in res) {
throw new Error(
'failed to get confirmed signatures for address: ' + res.error.message,
);
}
return res.result;
}
/**
* Returns confirmed signatures for transactions involving an
* address backwards in time from the provided signature or most recent confirmed block
*
*
* @param address queried address
* @param options
*/
async getSignaturesForAddress(
address: PublicKey,
options?: SignaturesForAddressOptions,
commitment?: Finality,
): Promise<Array<ConfirmedSignatureInfo>> {
const args = this._buildArgsAtLeastConfirmed(
[address.toBase58()],
commitment,
undefined,
options,
);
const unsafeRes = await this._rpcRequest('getSignaturesForAddress', args);
const res = create(unsafeRes, GetSignaturesForAddressRpcResult);
if ('error' in res) {
throw new Error(
'failed to get signatures for address: ' + res.error.message,
);
}
return res.result;
}
/**
* Fetch the contents of a Nonce account from the cluster, return with context
*/
async getNonceAndContext(
nonceAccount: PublicKey,
commitment?: Commitment,
): Promise<RpcResponseAndContext<NonceAccount | null>> {
const {context, value: accountInfo} = await this.getAccountInfoAndContext(
nonceAccount,
commitment,
);
let value = null;
if (accountInfo !== null) {
value = NonceAccount.fromAccountData(accountInfo.data);
}
return {
context,
value,
};
}
/**
* Fetch the contents of a Nonce account from the cluster
*/
async getNonce(
nonceAccount: PublicKey,
commitment?: Commitment,
): Promise<NonceAccount | null> {
return await this.getNonceAndContext(nonceAccount, commitment)
.then(x => x.value)
.catch(e => {
throw new Error(
'failed to get nonce for account ' +
nonceAccount.toBase58() +
': ' +
e,
);
});
}
/**
* Request an allocation of lamports to the specified address
*
* ```typescript
* import { Connection, PublicKey, LAMPORTS_PER_SOL } from "@solana/web3.js";
*
* (async () => {
* const connection = new Connection("https://api.testnet.solana.com", "confirmed");
* const myAddress = new PublicKey("2nr1bHFT86W9tGnyvmYW4vcHKsQB3sVQfnddasz4kExM");
* const signature = await connection.requestAirdrop(myAddress, LAMPORTS_PER_SOL);
* await connection.confirmTransaction(signature);
* })();
* ```
*/
async requestAirdrop(
to: PublicKey,
lamports: number,
): Promise<TransactionSignature> {
const unsafeRes = await this._rpcRequest('requestAirdrop', [
to.toBase58(),
lamports,
]);
const res = create(unsafeRes, RequestAirdropRpcResult);
if ('error' in res) {
throw new Error(
'airdrop to ' + to.toBase58() + ' failed: ' + res.error.message,
);
}
return res.result;
}
/**
* @internal
*/
async _recentBlockhash(disableCache: boolean): Promise<Blockhash> {
if (!disableCache) {
// Wait for polling to finish
while (this._pollingBlockhash) {
await sleep(100);
}
const timeSinceFetch = Date.now() - this._blockhashInfo.lastFetch;
const expired = timeSinceFetch >= BLOCKHASH_CACHE_TIMEOUT_MS;
if (this._blockhashInfo.recentBlockhash !== null && !expired) {
return this._blockhashInfo.recentBlockhash;
}
}
return await this._pollNewBlockhash();
}
/**
* @internal
*/
async _pollNewBlockhash(): Promise<Blockhash> {
this._pollingBlockhash = true;
try {
const startTime = Date.now();
for (let i = 0; i < 50; i++) {
const {blockhash} = await this.getRecentBlockhash('finalized');
if (this._blockhashInfo.recentBlockhash != blockhash) {
this._blockhashInfo = {
recentBlockhash: blockhash,
lastFetch: Date.now(),
transactionSignatures: [],
simulatedSignatures: [],
};
return blockhash;
}
// Sleep for approximately half a slot
await sleep(MS_PER_SLOT / 2);
}
throw new Error(
`Unable to obtain a new blockhash after ${Date.now() - startTime}ms`,
);
} finally {
this._pollingBlockhash = false;
}
}
/**
* Simulate a transaction
*/
async simulateTransaction(
transactionOrMessage: Transaction | Message,
signers?: Array<Signer>,
includeAccounts?: boolean | Array<PublicKey>,
): Promise<RpcResponseAndContext<SimulatedTransactionResponse>> {
let transaction;
if (transactionOrMessage instanceof Transaction) {
let originalTx: Transaction = transactionOrMessage;
transaction = new Transaction({
recentBlockhash: originalTx.recentBlockhash,
nonceInfo: originalTx.nonceInfo,
feePayer: originalTx.feePayer,
signatures: [...originalTx.signatures],
});
transaction.instructions = transactionOrMessage.instructions;
} else {
transaction = Transaction.populate(transactionOrMessage);
// HACK: this function relies on mutating the populated transaction
transaction._message = transaction._json = undefined;
}
if (transaction.nonceInfo && signers) {
transaction.sign(...signers);
} else {
let disableCache = this._disableBlockhashCaching;
for (;;) {
transaction.recentBlockhash = await this._recentBlockhash(disableCache);
if (!signers) break;
transaction.sign(...signers);
if (!transaction.signature) {
throw new Error('!signature'); // should never happen
}
const signature = transaction.signature.toString('base64');
if (
!this._blockhashInfo.simulatedSignatures.includes(signature) &&
!this._blockhashInfo.transactionSignatures.includes(signature)
) {
// The signature of this transaction has not been seen before with the
// current recentBlockhash, all done. Let's break
this._blockhashInfo.simulatedSignatures.push(signature);
break;
} else {
// This transaction would be treated as duplicate (its derived signature
// matched to one of already recorded signatures).
// So, we must fetch a new blockhash for a different signature by disabling
// our cache not to wait for the cache expiration (BLOCKHASH_CACHE_TIMEOUT_MS).
disableCache = true;
}
}
}
const message = transaction._compile();
const signData = message.serialize();
const wireTransaction = transaction._serialize(signData);
const encodedTransaction = wireTransaction.toString('base64');
const config: any = {
encoding: 'base64',
commitment: this.commitment,
};
if (includeAccounts) {
const addresses = (
Array.isArray(includeAccounts)
? includeAccounts
: message.nonProgramIds()
).map(key => key.toBase58());
config['accounts'] = {
encoding: 'base64',
addresses,
};
}
if (signers) {
config.sigVerify = true;
}
const args = [encodedTransaction, config];
const unsafeRes = await this._rpcRequest('simulateTransaction', args);
const res = create(unsafeRes, SimulatedTransactionResponseStruct);
if ('error' in res) {
let logs;
if ('data' in res.error) {
logs = res.error.data.logs;
if (logs && Array.isArray(logs)) {
const traceIndent = '\n ';
const logTrace = traceIndent + logs.join(traceIndent);
console.error(res.error.message, logTrace);
}
}
throw new SendTransactionError(
'failed to simulate transaction: ' + res.error.message,
logs,
);
}
return res.result;
}
/**
* Sign and send a transaction
*/
async sendTransaction(
transaction: Transaction,
signers: Array<Signer>,
options?: SendOptions,
): Promise<TransactionSignature> {
if (transaction.nonceInfo) {
transaction.sign(...signers);
} else {
let disableCache = this._disableBlockhashCaching;
for (;;) {
transaction.recentBlockhash = await this._recentBlockhash(disableCache);
transaction.sign(...signers);
if (!transaction.signature) {
throw new Error('!signature'); // should never happen
}
const signature = transaction.signature.toString('base64');
if (!this._blockhashInfo.transactionSignatures.includes(signature)) {
// The signature of this transaction has not been seen before with the
// current recentBlockhash, all done. Let's break
this._blockhashInfo.transactionSignatures.push(signature);
break;
} else {
// This transaction would be treated as duplicate (its derived signature
// matched to one of already recorded signatures).
// So, we must fetch a new blockhash for a different signature by disabling
// our cache not to wait for the cache expiration (BLOCKHASH_CACHE_TIMEOUT_MS).
disableCache = true;
}
}
}
const wireTransaction = transaction.serialize();
return await this.sendRawTransaction(wireTransaction, options);
}
/**
* Send a transaction that has already been signed and serialized into the
* wire format
*/
async sendRawTransaction(
rawTransaction: Buffer | Uint8Array | Array<number>,
options?: SendOptions,
): Promise<TransactionSignature> {
const encodedTransaction = toBuffer(rawTransaction).toString('base64');
const result = await this.sendEncodedTransaction(
encodedTransaction,
options,
);
return result;
}
/**
* Send a transaction that has already been signed, serialized into the
* wire format, and encoded as a base64 string
*/
async sendEncodedTransaction(
encodedTransaction: string,
options?: SendOptions,
): Promise<TransactionSignature> {
const config: any = {encoding: 'base64'};
const skipPreflight = options && options.skipPreflight;
const preflightCommitment =
(options && options.preflightCommitment) || this.commitment;
if (options && options.maxRetries) {
config.maxRetries = options.maxRetries;
}
if (skipPreflight) {
config.skipPreflight = skipPreflight;
}
if (preflightCommitment) {
config.preflightCommitment = preflightCommitment;
}
const args = [encodedTransaction, config];
const unsafeRes = await this._rpcRequest('sendTransaction', args);
const res = create(unsafeRes, SendTransactionRpcResult);
if ('error' in res) {
let logs;
if ('data' in res.error) {
logs = res.error.data.logs;
}
throw new SendTransactionError(
'failed to send transaction: ' + res.error.message,
logs,
);
}
return res.result;
}
/**
* @internal
*/
_wsOnOpen() {
this._rpcWebSocketConnected = true;
this._rpcWebSocketHeartbeat = setInterval(() => {
// Ping server every 5s to prevent idle timeouts
this._rpcWebSocket.notify('ping').catch(() => {});
}, 5000);
this._updateSubscriptions();
}
/**
* @internal
*/
_wsOnError(err: Error) {
console.error('ws error:', err.message);
}
/**
* @internal
*/
_wsOnClose(code: number) {
if (this._rpcWebSocketHeartbeat) {
clearInterval(this._rpcWebSocketHeartbeat);
this._rpcWebSocketHeartbeat = null;
}
if (code === 1000) {
// explicit close, check if any subscriptions have been made since close
this._updateSubscriptions();
return;
}
// implicit close, prepare subscriptions for auto-reconnect
this._resetSubscriptions();
}
/**
* @internal
*/
async _subscribe(
sub: {subscriptionId: SubscriptionId | null},
rpcMethod: string,
rpcArgs: IWSRequestParams,
) {
if (sub.subscriptionId == null) {
sub.subscriptionId = 'subscribing';
try {
const id = await this._rpcWebSocket.call(rpcMethod, rpcArgs);
if (typeof id === 'number' && sub.subscriptionId === 'subscribing') {
// eslint-disable-next-line require-atomic-updates
sub.subscriptionId = id;
}
} catch (err) {
if (sub.subscriptionId === 'subscribing') {
// eslint-disable-next-line require-atomic-updates
sub.subscriptionId = null;
}
if (err instanceof Error) {
console.error(
`${rpcMethod} error for argument`,
rpcArgs,
err.message,
);
}
}
}
}
/**
* @internal
*/
async _unsubscribe(
sub: {subscriptionId: SubscriptionId | null},
rpcMethod: string,
) {
const subscriptionId = sub.subscriptionId;
if (subscriptionId != null && typeof subscriptionId != 'string') {
const unsubscribeId: number = subscriptionId;
try {
await this._rpcWebSocket.call(rpcMethod, [unsubscribeId]);
} catch (err) {
if (err instanceof Error) {
console.error(`${rpcMethod} error:`, err.message);
}
}
}
}
/**
* @internal
*/
_resetSubscriptions() {
Object.values(this._accountChangeSubscriptions).forEach(
s => (s.subscriptionId = null),
);
Object.values(this._logsSubscriptions).forEach(
s => (s.subscriptionId = null),
);
Object.values(this._programAccountChangeSubscriptions).forEach(
s => (s.subscriptionId = null),
);
Object.values(this._rootSubscriptions).forEach(
s => (s.subscriptionId = null),
);
Object.values(this._signatureSubscriptions).forEach(
s => (s.subscriptionId = null),
);
Object.values(this._slotSubscriptions).forEach(
s => (s.subscriptionId = null),
);
Object.values(this._slotUpdateSubscriptions).forEach(
s => (s.subscriptionId = null),
);
}
/**
* @internal
*/
_updateSubscriptions() {
const accountKeys = Object.keys(this._accountChangeSubscriptions).map(
Number,
);
const programKeys = Object.keys(
this._programAccountChangeSubscriptions,
).map(Number);
const slotKeys = Object.keys(this._slotSubscriptions).map(Number);
const slotUpdateKeys = Object.keys(this._slotUpdateSubscriptions).map(
Number,
);
const signatureKeys = Object.keys(this._signatureSubscriptions).map(Number);
const rootKeys = Object.keys(this._rootSubscriptions).map(Number);
const logsKeys = Object.keys(this._logsSubscriptions).map(Number);
if (
accountKeys.length === 0 &&
programKeys.length === 0 &&
slotKeys.length === 0 &&
slotUpdateKeys.length === 0 &&
signatureKeys.length === 0 &&
rootKeys.length === 0 &&
logsKeys.length === 0
) {
if (this._rpcWebSocketConnected) {
this._rpcWebSocketConnected = false;
this._rpcWebSocketIdleTimeout = setTimeout(() => {
this._rpcWebSocketIdleTimeout = null;
try {
this._rpcWebSocket.close();
} catch (err) {
// swallow error if socket has already been closed.
if (err instanceof Error) {
console.log(
`Error when closing socket connection: ${err.message}`,
);
}
}
}, 500);
}
return;
}
if (this._rpcWebSocketIdleTimeout !== null) {
clearTimeout(this._rpcWebSocketIdleTimeout);
this._rpcWebSocketIdleTimeout = null;
this._rpcWebSocketConnected = true;
}
if (!this._rpcWebSocketConnected) {
this._rpcWebSocket.connect();
return;
}
for (let id of accountKeys) {
const sub = this._accountChangeSubscriptions[id];
this._subscribe(
sub,
'accountSubscribe',
this._buildArgs([sub.publicKey], sub.commitment, 'base64'),
);
}
for (let id of programKeys) {
const sub = this._programAccountChangeSubscriptions[id];
this._subscribe(
sub,
'programSubscribe',
this._buildArgs([sub.programId], sub.commitment, 'base64', {
filters: sub.filters,
}),
);
}
for (let id of slotKeys) {
const sub = this._slotSubscriptions[id];
this._subscribe(sub, 'slotSubscribe', []);
}
for (let id of slotUpdateKeys) {
const sub = this._slotUpdateSubscriptions[id];
this._subscribe(sub, 'slotsUpdatesSubscribe', []);
}
for (let id of signatureKeys) {
const sub = this._signatureSubscriptions[id];
const args: any[] = [sub.signature];
if (sub.options) args.push(sub.options);
this._subscribe(sub, 'signatureSubscribe', args);
}
for (let id of rootKeys) {
const sub = this._rootSubscriptions[id];
this._subscribe(sub, 'rootSubscribe', []);
}
for (let id of logsKeys) {
const sub = this._logsSubscriptions[id];
let filter;
if (typeof sub.filter === 'object') {
filter = {mentions: [sub.filter.toString()]};
} else {
filter = sub.filter;
}
this._subscribe(
sub,
'logsSubscribe',
this._buildArgs([filter], sub.commitment),
);
}
}
/**
* @internal
*/
_wsOnAccountNotification(notification: object) {
const res = create(notification, AccountNotificationResult);
for (const sub of Object.values(this._accountChangeSubscriptions)) {
if (sub.subscriptionId === res.subscription) {
sub.callback(res.result.value, res.result.context);
return;
}
}
}
/**
* Register a callback to be invoked whenever the specified account changes
*
* @param publicKey Public key of the account to monitor
* @param callback Function to invoke whenever the account is changed
* @param commitment Specify the commitment level account changes must reach before notification
* @return subscription id
*/
onAccountChange(
publicKey: PublicKey,
callback: AccountChangeCallback,
commitment?: Commitment,
): number {
const id = ++this._accountChangeSubscriptionCounter;
this._accountChangeSubscriptions[id] = {
publicKey: publicKey.toBase58(),
callback,
commitment,
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister an account notification callback
*
* @param id subscription id to deregister
*/
async removeAccountChangeListener(id: number): Promise<void> {
if (this._accountChangeSubscriptions[id]) {
const subInfo = this._accountChangeSubscriptions[id];
delete this._accountChangeSubscriptions[id];
await this._unsubscribe(subInfo, 'accountUnsubscribe');
this._updateSubscriptions();
} else {
throw new Error(`Unknown account change id: ${id}`);
}
}
/**
* @internal
*/
_wsOnProgramAccountNotification(notification: Object) {
const res = create(notification, ProgramAccountNotificationResult);
for (const sub of Object.values(this._programAccountChangeSubscriptions)) {
if (sub.subscriptionId === res.subscription) {
const {value, context} = res.result;
sub.callback(
{
accountId: value.pubkey,
accountInfo: value.account,
},
context,
);
return;
}
}
}
/**
* Register a callback to be invoked whenever accounts owned by the
* specified program change
*
* @param programId Public key of the program to monitor
* @param callback Function to invoke whenever the account is changed
* @param commitment Specify the commitment level account changes must reach before notification
* @param filters The program account filters to pass into the RPC method
* @return subscription id
*/
onProgramAccountChange(
programId: PublicKey,
callback: ProgramAccountChangeCallback,
commitment?: Commitment,
filters?: GetProgramAccountsFilter[],
): number {
const id = ++this._programAccountChangeSubscriptionCounter;
this._programAccountChangeSubscriptions[id] = {
programId: programId.toBase58(),
callback,
commitment,
subscriptionId: null,
filters,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister an account notification callback
*
* @param id subscription id to deregister
*/
async removeProgramAccountChangeListener(id: number): Promise<void> {
if (this._programAccountChangeSubscriptions[id]) {
const subInfo = this._programAccountChangeSubscriptions[id];
delete this._programAccountChangeSubscriptions[id];
await this._unsubscribe(subInfo, 'programUnsubscribe');
this._updateSubscriptions();
} else {
throw new Error(`Unknown program account change id: ${id}`);
}
}
/**
* Registers a callback to be invoked whenever logs are emitted.
*/
onLogs(
filter: LogsFilter,
callback: LogsCallback,
commitment?: Commitment,
): number {
const id = ++this._logsSubscriptionCounter;
this._logsSubscriptions[id] = {
filter,
callback,
commitment,
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister a logs callback.
*
* @param id subscription id to deregister.
*/
async removeOnLogsListener(id: number): Promise<void> {
if (!this._logsSubscriptions[id]) {
throw new Error(`Unknown logs id: ${id}`);
}
const subInfo = this._logsSubscriptions[id];
delete this._logsSubscriptions[id];
await this._unsubscribe(subInfo, 'logsUnsubscribe');
this._updateSubscriptions();
}
/**
* @internal
*/
_wsOnLogsNotification(notification: Object) {
const res = create(notification, LogsNotificationResult);
const keys = Object.keys(this._logsSubscriptions).map(Number);
for (let id of keys) {
const sub = this._logsSubscriptions[id];
if (sub.subscriptionId === res.subscription) {
sub.callback(res.result.value, res.result.context);
return;
}
}
}
/**
* @internal
*/
_wsOnSlotNotification(notification: Object) {
const res = create(notification, SlotNotificationResult);
for (const sub of Object.values(this._slotSubscriptions)) {
if (sub.subscriptionId === res.subscription) {
sub.callback(res.result);
return;
}
}
}
/**
* Register a callback to be invoked upon slot changes
*
* @param callback Function to invoke whenever the slot changes
* @return subscription id
*/
onSlotChange(callback: SlotChangeCallback): number {
const id = ++this._slotSubscriptionCounter;
this._slotSubscriptions[id] = {
callback,
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister a slot notification callback
*
* @param id subscription id to deregister
*/
async removeSlotChangeListener(id: number): Promise<void> {
if (this._slotSubscriptions[id]) {
const subInfo = this._slotSubscriptions[id];
delete this._slotSubscriptions[id];
await this._unsubscribe(subInfo, 'slotUnsubscribe');
this._updateSubscriptions();
} else {
throw new Error(`Unknown slot change id: ${id}`);
}
}
/**
* @internal
*/
_wsOnSlotUpdatesNotification(notification: Object) {
const res = create(notification, SlotUpdateNotificationResult);
for (const sub of Object.values(this._slotUpdateSubscriptions)) {
if (sub.subscriptionId === res.subscription) {
sub.callback(res.result);
return;
}
}
}
/**
* Register a callback to be invoked upon slot updates. {@link SlotUpdate}'s
* may be useful to track live progress of a cluster.
*
* @param callback Function to invoke whenever the slot updates
* @return subscription id
*/
onSlotUpdate(callback: SlotUpdateCallback): number {
const id = ++this._slotUpdateSubscriptionCounter;
this._slotUpdateSubscriptions[id] = {
callback,
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister a slot update notification callback
*
* @param id subscription id to deregister
*/
async removeSlotUpdateListener(id: number): Promise<void> {
if (this._slotUpdateSubscriptions[id]) {
const subInfo = this._slotUpdateSubscriptions[id];
delete this._slotUpdateSubscriptions[id];
await this._unsubscribe(subInfo, 'slotsUpdatesUnsubscribe');
this._updateSubscriptions();
} else {
throw new Error(`Unknown slot update id: ${id}`);
}
}
_buildArgs(
args: Array<any>,
override?: Commitment,
encoding?: 'jsonParsed' | 'base64',
extra?: any,
): Array<any> {
const commitment = override || this._commitment;
if (commitment || encoding || extra) {
let options: any = {};
if (encoding) {
options.encoding = encoding;
}
if (commitment) {
options.commitment = commitment;
}
if (extra) {
options = Object.assign(options, extra);
}
args.push(options);
}
return args;
}
/**
* @internal
*/
_buildArgsAtLeastConfirmed(
args: Array<any>,
override?: Finality,
encoding?: 'jsonParsed' | 'base64',
extra?: any,
): Array<any> {
const commitment = override || this._commitment;
if (commitment && !['confirmed', 'finalized'].includes(commitment)) {
throw new Error(
'Using Connection with default commitment: `' +
this._commitment +
'`, but method requires at least `confirmed`',
);
}
return this._buildArgs(args, override, encoding, extra);
}
/**
* @internal
*/
_wsOnSignatureNotification(notification: Object) {
const res = create(notification, SignatureNotificationResult);
for (const [id, sub] of Object.entries(this._signatureSubscriptions)) {
if (sub.subscriptionId === res.subscription) {
if (res.result.value === 'receivedSignature') {
sub.callback(
{
type: 'received',
},
res.result.context,
);
} else {
// Signatures subscriptions are auto-removed by the RPC service so
// no need to explicitly send an unsubscribe message
delete this._signatureSubscriptions[Number(id)];
this._updateSubscriptions();
sub.callback(
{
type: 'status',
result: res.result.value,
},
res.result.context,
);
}
return;
}
}
}
/**
* Register a callback to be invoked upon signature updates
*
* @param signature Transaction signature string in base 58
* @param callback Function to invoke on signature notifications
* @param commitment Specify the commitment level signature must reach before notification
* @return subscription id
*/
onSignature(
signature: TransactionSignature,
callback: SignatureResultCallback,
commitment?: Commitment,
): number {
const id = ++this._signatureSubscriptionCounter;
this._signatureSubscriptions[id] = {
signature,
callback: (notification, context) => {
if (notification.type === 'status') {
callback(notification.result, context);
}
},
options: {commitment},
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Register a callback to be invoked when a transaction is
* received and/or processed.
*
* @param signature Transaction signature string in base 58
* @param callback Function to invoke on signature notifications
* @param options Enable received notifications and set the commitment
* level that signature must reach before notification
* @return subscription id
*/
onSignatureWithOptions(
signature: TransactionSignature,
callback: SignatureSubscriptionCallback,
options?: SignatureSubscriptionOptions,
): number {
const id = ++this._signatureSubscriptionCounter;
this._signatureSubscriptions[id] = {
signature,
callback,
options,
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister a signature notification callback
*
* @param id subscription id to deregister
*/
async removeSignatureListener(id: number): Promise<void> {
if (this._signatureSubscriptions[id]) {
const subInfo = this._signatureSubscriptions[id];
delete this._signatureSubscriptions[id];
await this._unsubscribe(subInfo, 'signatureUnsubscribe');
this._updateSubscriptions();
} else {
throw new Error(`Unknown signature result id: ${id}`);
}
}
/**
* @internal
*/
_wsOnRootNotification(notification: Object) {
const res = create(notification, RootNotificationResult);
for (const sub of Object.values(this._rootSubscriptions)) {
if (sub.subscriptionId === res.subscription) {
sub.callback(res.result);
return;
}
}
}
/**
* Register a callback to be invoked upon root changes
*
* @param callback Function to invoke whenever the root changes
* @return subscription id
*/
onRootChange(callback: RootChangeCallback): number {
const id = ++this._rootSubscriptionCounter;
this._rootSubscriptions[id] = {
callback,
subscriptionId: null,
};
this._updateSubscriptions();
return id;
}
/**
* Deregister a root notification callback
*
* @param id subscription id to deregister
*/
async removeRootChangeListener(id: number): Promise<void> {
if (this._rootSubscriptions[id]) {
const subInfo = this._rootSubscriptions[id];
delete this._rootSubscriptions[id];
await this._unsubscribe(subInfo, 'rootUnsubscribe');
this._updateSubscriptions();
} else {
throw new Error(`Unknown root change id: ${id}`);
}
}
}