Add getAccountInfo
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@ -4,6 +4,7 @@ import assert from 'assert';
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import fetch from 'node-fetch';
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import jayson from 'jayson/lib/client/browser';
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import {struct} from 'superstruct';
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import bs58 from 'bs58';
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import {Transaction} from './transaction';
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import type {Account, PublicKey} from './account';
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@ -56,6 +57,22 @@ const GetBalanceRpcResult = struct({
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result: 'number?',
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});
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/**
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* Expected JSON RPC response for the "getAccountInfo" message
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*/
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const GetAccountInfoRpcResult = struct({
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jsonrpc: struct.literal('2.0'),
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id: 'string',
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error: 'any?',
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result: struct.optional({
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contract_id: 'array',
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tokens: 'number',
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userdata: 'array',
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}),
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});
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/**
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* Expected JSON RPC response for the "confirmTransaction" message
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*/
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@ -116,6 +133,15 @@ const SendTokensRpcResult = struct({
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result: 'string?',
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});
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/**
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* Information describing an account
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*/
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type AccountInfo = {
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tokens: number,
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programId: PublicKey,
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userdata: Buffer | null,
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}
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/**
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* A connection to a fullnode JSON RPC endpoint
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*/
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@ -150,6 +176,33 @@ export class Connection {
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return res.result;
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}
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/**
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* Fetch all the account info for the specified public key
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*/
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async getAccountInfo(publicKey: PublicKey): Promise<AccountInfo> {
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const unsafeRes = await this._rpcRequest(
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'getAccountInfo',
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[publicKey]
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);
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const res = GetAccountInfoRpcResult(unsafeRes);
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if (res.error) {
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throw new Error(res.error.message);
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}
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const {result} = res;
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assert(typeof result !== 'undefined');
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let userdata = null;
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if (result.userdata.length > 0) {
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userdata = Buffer.from(result.userdata);
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}
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return {
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tokens: result.tokens,
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programId: bs58.encode(result.contract_id),
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userdata,
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};
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}
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/**
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* Confirm the transaction identified by the specified signature
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*/
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@ -10,7 +10,7 @@ type RpcRequest = {
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type RpcResponseError = {
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message: string;
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}
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type RpcResponseResult = boolean | string | number;
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type RpcResponseResult = any;
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type RpcResponse = {
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error: ?RpcResponseError;
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result: ?RpcResponseResult;
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@ -16,6 +16,7 @@ test('pay', () => {
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123,
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);
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console.log('Pay:', transaction);
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// TODO: Validate transaction contents
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transaction = BudgetProgram.pay(
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from.publicKey,
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@ -25,6 +26,7 @@ test('pay', () => {
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BudgetProgram.signatureCondition(from.publicKey),
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);
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console.log('After:', transaction);
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// TODO: Validate transaction contents
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transaction = BudgetProgram.pay(
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from.publicKey,
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@ -35,5 +37,6 @@ test('pay', () => {
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BudgetProgram.timestampCondition(from.publicKey, new Date()),
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);
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console.log('Or:', transaction);
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// TODO: Validate transaction contents
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});
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@ -17,6 +17,24 @@ const errorResponse = {
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};
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test('get account info - error', () => {
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const account = new Account();
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const connection = new Connection(url);
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mockRpc.push([
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url,
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{
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method: 'getAccountInfo',
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params: [account.publicKey],
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},
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errorResponse,
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]);
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expect(connection.getAccountInfo(account.publicKey))
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.rejects.toThrow(errorMessage);
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});
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test('get balance', async () => {
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const account = new Account();
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const connection = new Connection(url);
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@ -176,6 +194,31 @@ test('request airdrop', async () => {
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const balance = await connection.getBalance(account.publicKey);
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expect(balance).toBe(42);
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mockRpc.push([
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url,
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{
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method: 'getAccountInfo',
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params: [account.publicKey],
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},
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{
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error: null,
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result: {
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contract_id: [
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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],
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tokens: 42,
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userdata: [],
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}
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}
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]);
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const accountInfo = await connection.getAccountInfo(account.publicKey);
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expect(accountInfo.tokens).toBe(42);
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expect(accountInfo.userdata).toBe(null);
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expect(accountInfo.programId).toBe(SystemProgram.programId);
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});
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test('request airdrop - error', () => {
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