Send RawTxBatch
接口說明
用於在高性能网络上廣播一批rawtx,方法名SendTxs
流控說明
Tier 3 | Tier 2 | Tier 1 | |
---|---|---|---|
BPS | - | 2 batches / 1s | 4 batches / 1s |
每batch包含交易數 | - | 10 Txs / batch | 10 Txs / batch |
請求參數
參數 | 必選 | 格式 | 示例 | 描述 |
---|---|---|---|---|
Transactions | 是 | Array[String] | ["0xf8……8219", "0xcb……2ac0"] | 經過簽名的raw tx列表 |
請求示例
package main
import (
"context"
"encoding/hex"
"fmt"
"math/big"
// directory of the generated code using the provided relay.proto file
pb "github.com/BlockRazorinc/relay_example/protobuf"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/rlp"
"google.golang.org/grpc"
)
// auth will be used to verify the credential
type Authentication struct {
apiKey string
}
func (a *Authentication) GetRequestMetadata(context.Context, ...string) (map[string]string, error) {
return map[string]string{"apiKey": a.apiKey}, nil
}
func (a *Authentication) RequireTransportSecurity() bool {
return false
}
func main() {
// BlockRazor relay endpoint address
blzrelayEndPoint := "ip:port"
// auth will be used to verify the credential
auth := Authentication{
"your auth token",
}
// open gRPC connection to BlockRazor relay
var err error
conn, err := grpc.Dial(blzrelayEndPoint, grpc.WithInsecure(), grpc.WithPerRPCCredentials(&auth), grpc.WithWriteBufferSize(0), grpc.WithInitialConnWindowSize(128*1024))
if err != nil {
fmt.Println("error: ", err)
return
}
// use the Gateway client connection interface
client := pb.NewGatewayClient(conn)
// create context
ctx := context.Background()
// replace with your address
from_private_address1 := "6c0456……8b8003"
from_private_address2 := "42b565……44d05c"
to_public_address := "0x4321……3f1c66"
// replace with your transaction data
nonce1 := uint64(1)
nonce2 := uint64(1)
toAddress := common.HexToAddress(to_public_address)
var data []byte
gasPrice := big.NewInt(1e9)
gasLimit := uint64(22000)
value := big.NewInt(0)
chainid := types.NewEIP155Signer(big.NewInt(56))
// create new transaction
tx1 := types.NewTransaction(nonce1, toAddress, value, gasLimit, gasPrice, data)
tx2 := types.NewTransaction(nonce2, toAddress, value, gasLimit, gasPrice, data)
privateKey1, err := crypto.HexToECDSA(from_private_address1)
if err != nil {
fmt.Println("fail to casting private key to ECDSA")
return
}
privateKey2, err := crypto.HexToECDSA(from_private_address2)
if err != nil {
fmt.Println("fail to casting private key to ECDSA")
return
}
// sign transaction by private key
signedTx1, err := types.SignTx(tx1, chainid, privateKey1)
if err != nil {
fmt.Println("fail to sign transaction")
return
}
signedTx2, err := types.SignTx(tx2, chainid, privateKey2)
if err != nil {
fmt.Println("fail to sign transaction")
return
}
// use rlp to encode your transaction
body, _ := rlp.EncodeToBytes([]types.Transaction{*signedTx1, *signedTx2})
// encode []byte to string
encode_txs := hex.EncodeToString(body)
// send raw tx batch by BlockRazor
res, err := client.SendTxs(ctx, &pb.SendTxsRequest{Transactions: encode_txs})
if err != nil {
fmt.Println("failed to send raw tx batch: ", err)
return
} else {
fmt.Println("raw tx batch sent by BlockRazor, tx hashes are ", res.TxHashs)
}
}
返回示例
正常
{
"tx_hash":["0xdb95……584813", "0x887d……7aba19"]
}
异常
rpc error: code = Unknown desc = invalid transaction format
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