solana-go/rpc/client.go

236 lines
6.1 KiB
Go

// Copyright 2020 dfuse Platform Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rpc
import (
"bytes"
"context"
"encoding/base64"
"errors"
"fmt"
"net/http"
bin "github.com/dfuse-io/binary"
"github.com/dfuse-io/solana-go"
"github.com/ybbus/jsonrpc"
)
var ErrNotFound = errors.New("not found")
type Client struct {
rpcURL string
rpcClient jsonrpc.RPCClient
headers http.Header
}
func NewClient(rpcURL string) *Client {
rpcClient := jsonrpc.NewClient(rpcURL)
return &Client{
rpcURL: rpcURL,
rpcClient: rpcClient,
}
}
func (c *Client) SetHeader(k, v string) {
if c.headers == nil {
c.headers = http.Header{}
}
c.headers.Set(k, v)
}
func (c *Client) GetBalance(ctx context.Context, publicKey string, commitment CommitmentType) (out *GetBalanceResult, err error) {
params := []interface{}{publicKey}
if commitment != "" {
params = append(params, string(commitment))
}
err = c.rpcClient.CallFor(&out, "getBalance", params...)
return
}
func (c *Client) GetRecentBlockhash(ctx context.Context, commitment CommitmentType) (out *GetRecentBlockhashResult, err error) {
commit := map[string]string{
"commitment": string(commitment),
}
var params []interface{}
if commitment != "" {
params = append(params, commit)
}
err = c.rpcClient.CallFor(&out, "getRecentBlockhash", params)
return
}
func (c *Client) GetSlot(ctx context.Context, commitment CommitmentType) (out GetSlotResult, err error) {
var params []interface{}
if commitment != "" {
params = append(params, string(commitment))
}
err = c.rpcClient.CallFor(&out, "getSlot", params...)
return
}
func (c *Client) GetConfirmedBlock(ctx context.Context, slot uint64, encoding string) (out *GetConfirmedBlockResult, err error) {
if encoding == "" {
encoding = "json"
}
params := []interface{}{slot, encoding}
err = c.rpcClient.CallFor(&out, "getConfirmedBlock", params...)
return
}
func (c *Client) GetAccountInfo(ctx context.Context, account solana.PublicKey) (out *GetAccountInfoResult, err error) {
obj := map[string]interface{}{
"encoding": "base64",
}
params := []interface{}{account, obj}
err = c.rpcClient.CallFor(&out, "getAccountInfo", params...)
if err != nil {
return nil, err
}
if out.Value == nil {
return nil, ErrNotFound
}
return out, nil
}
func (c *Client) GetAccountDataIn(ctx context.Context, account solana.PublicKey, inVar interface{}) (err error) {
resp, err := c.GetAccountInfo(ctx, account)
if err != nil {
return err
}
return bin.NewDecoder(resp.Value.Data).Decode(inVar)
}
func (c *Client) GetConfirmedTransaction(ctx context.Context, signature string) (out TransactionWithMeta, err error) {
params := []interface{}{signature, "json"}
err = c.rpcClient.CallFor(&out, "getConfirmedTransaction", params...)
return
}
func (c *Client) GetConfirmedSignaturesForAddress2(ctx context.Context, address solana.PublicKey, opts *GetConfirmedSignaturesForAddress2Opts) (out GetConfirmedSignaturesForAddress2Result, err error) {
params := []interface{}{address.String(), opts}
err = c.rpcClient.CallFor(&out, "getConfirmedSignaturesForAddress2", params...)
return
}
func (c *Client) GetProgramAccounts(ctx context.Context, publicKey solana.PublicKey, opts *GetProgramAccountsOpts) (out GetProgramAccountsResult, err error) {
obj := map[string]interface{}{
"encoding": "base64",
}
if opts != nil {
if opts.Commitment != "" {
obj["commitment"] = string(opts.Commitment)
}
if len(opts.Filters) != 0 {
obj["filters"] = opts.Filters
}
}
params := []interface{}{publicKey, obj}
err = c.rpcClient.CallFor(&out, "getProgramAccounts", params...)
return
}
func (c *Client) GetMinimumBalanceForRentExemption(ctx context.Context, dataSize int) (lamport int, err error) {
params := []interface{}{dataSize}
err = c.rpcClient.CallFor(&lamport, "getMinimumBalanceForRentExemption", params...)
return
}
type SimulateTransactionResponse struct {
Err interface{}
Logs []string
}
func (c *Client) SimulateTransaction(ctx context.Context, transaction *solana.Transaction) (*SimulateTransactionResponse, error) {
buf := new(bytes.Buffer)
if err := bin.NewEncoder(buf).Encode(transaction); err != nil {
return nil, fmt.Errorf("send transaction: encode transaction: %w", err)
}
trxData := buf.Bytes()
obj := map[string]interface{}{
"encoding": "base64",
}
b64Data := base64.StdEncoding.EncodeToString(trxData)
params := []interface{}{
b64Data,
obj,
}
var out *SimulateTransactionResponse
if err := c.rpcClient.CallFor(&out, "simulateTransaction", params...); err != nil {
return nil, fmt.Errorf("send transaction: rpc send: %w", err)
}
return out, nil
}
func (c *Client) SendTransaction(ctx context.Context, transaction *solana.Transaction) (signature string, err error) {
buf := new(bytes.Buffer)
if err := bin.NewEncoder(buf).Encode(transaction); err != nil {
return "", fmt.Errorf("send transaction: encode transaction: %w", err)
}
trxData := buf.Bytes()
obj := map[string]interface{}{
"encoding": "base64",
}
params := []interface{}{
base64.StdEncoding.EncodeToString(trxData),
obj,
}
if err := c.rpcClient.CallFor(&signature, "sendTransaction", params...); err != nil {
return "", fmt.Errorf("send transaction: rpc send: %w", err)
}
return
}
func (c *Client) RequestAirdrop(ctx context.Context, account *solana.PublicKey, lamport uint64, commitment CommitmentType) (signature string, err error) {
obj := map[string]interface{}{
"commitment": commitment,
}
params := []interface{}{
account.String(),
lamport,
obj,
}
if err := c.rpcClient.CallFor(&signature, "requestAirdrop", params...); err != nil {
return "", fmt.Errorf("send transaction: rpc send: %w", err)
}
return
}