98 lines
3.2 KiB
Go
98 lines
3.2 KiB
Go
// Copyright 2020 dfuse Platform Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rpc
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import (
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"bytes"
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"context"
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"encoding/base64"
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"fmt"
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bin "github.com/dfuse-io/binary"
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"github.com/gagliardetto/solana-go"
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)
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// SendTransaction submits a signed transaction to the cluster for processing.
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func (cl *Client) SendTransaction(
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ctx context.Context,
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transaction *solana.Transaction,
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) (signature solana.Signature, err error) {
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return cl.SendTransactionWithOpts(
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ctx,
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transaction,
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false,
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"",
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)
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}
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// SendTransaction submits a signed transaction to the cluster for processing.
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// This method does not alter the transaction in any way;
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// it relays the transaction created by clients to the node as-is.
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//
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// If the node's rpc service receives the transaction,
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// this method immediately succeeds, without waiting for any confirmations.
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// A successful response from this method does not guarantee the transaction
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// is processed or confirmed by the cluster.
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//
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// While the rpc service will reasonably retry to submit it, the transaction
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// could be rejected if transaction's recent_blockhash expires before it lands.
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//
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// Use getSignatureStatuses to ensure a transaction is processed and confirmed.
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//
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// Before submitting, the following preflight checks are performed:
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//
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// - The transaction signatures are verified
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// - The transaction is simulated against the bank slot specified by the preflight
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// commitment. On failure an error will be returned. Preflight checks may be
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// disabled if desired. It is recommended to specify the same commitment and
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// preflight commitment to avoid confusing behavior.
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//
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// The returned signature is the first signature in the transaction, which is
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// used to identify the transaction (transaction id). This identifier can be
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// easily extracted from the transaction data before submission.
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func (cl *Client) SendTransactionWithOpts(
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ctx context.Context,
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transaction *solana.Transaction,
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skipPreflight bool, // if true, skip the preflight transaction checks (default: false)
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preflightCommitment CommitmentType, // optional; Commitment level to use for preflight (default: "finalized").
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) (signature solana.Signature, err error) {
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buf := new(bytes.Buffer)
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if err := bin.NewEncoder(buf).Encode(transaction); err != nil {
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return solana.Signature{}, fmt.Errorf("send transaction: encode transaction: %w", err)
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}
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trxData := buf.Bytes()
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obj := M{
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"encoding": "base64",
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}
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if skipPreflight {
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obj["skipPreflight"] = skipPreflight
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}
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if preflightCommitment != "" {
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obj["preflightCommitment"] = preflightCommitment
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}
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params := []interface{}{
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base64.StdEncoding.EncodeToString(trxData),
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obj,
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}
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err = cl.rpcClient.CallFor(&signature, "sendTransaction", params)
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return
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}
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