Base

Introduction

Currently, the Base RPC only supports the eth_sendRawTransaction method

This API is used to send signed raw transactions on Base, supporting the gRPC and HTTPS protocol.

Endpoint

gRPC

Region	Endpoint
Frankfurt	frankfurt.grpc.base.blockrazor.xyz:80
Virginia	virginia.grpc.base.blockrazor.xyz:80
Tokyo	tokyo.grpc.base.blockrazor.xyz:80

HTTPS

Rate Limit

	Tier 4	Tier 3	Tier 2	Tier 1	Tier 0
TPS	1 Tx / 5s	1 Tx / 5s	3 TPS	5 TPS	Custom

Request Parameter

Parameter	Mandatory	Format	Example	Remark
rawTransaction	mandatory	string[hex]	"0xd46e8dd67c5d32be8d24c6b0afe7c5c3f4e9c3b2dae18d0c6b0cf5c8f3e8b2c1"	signed raw transaction

Request Example

gRPC

Access the example here

// sendTransactions is an example function for sending a transaction.
// It's designed to reuse an existing gRPC client connection to avoid connection latency.
func sendTransactions(client basepb.BaseApiClient, authToken string, rawTxString string) {
	log.Println("[SendTx] Sending transaction...")
	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
	defer cancel()

	// Add the authentication token to the outgoing request's metadata.
	md := metadata.Pairs("authorization", authToken)
	ctx = metadata.NewOutgoingContext(ctx, md)

	req := &basepb.SendTransactionRequest{
		RawTransaction: rawTxString,
	}

	res, err := client.SendTransaction(ctx, req)
	if err != nil {
		log.Printf("[SendTx] Failed to send transaction: %v", err)
	} else {
		log.Printf("[SendTx] Transaction sent successfully. Hash: %s", res.GetTxHash())
	}
}

HTTPS

proto

syntax = "proto3";

option go_package = "./basepb";


import "google/protobuf/wrappers.proto";

message BaseBlock {
  string parent_hash = 1;
  string fee_recipient = 2;
  bytes state_root = 3;
  bytes receipts_root = 4;
  bytes logs_bloom = 5;
  bytes prev_randao = 6;
  uint64 block_number = 7;
  uint64 gas_limit = 8;
  uint64 gas_used = 9;
  uint64 timestamp = 10;
  bytes extra_data = 11;
  repeated uint64 base_fee_per_gas = 12;
  string block_hash = 13;
  repeated bytes transactions = 14;

  repeated Withdrawal withdrawals = 15;
  google.protobuf.UInt64Value blob_gas_used = 16;
  google.protobuf.UInt64Value excess_blob_gas = 17;
  google.protobuf.BytesValue withdrawals_root = 18;
}

message Withdrawal {
  uint64 index = 1;
  uint64 validator = 2;
  bytes address = 3;
  uint64 amount = 4;
}

message GetRawFlashBlocksStreamRequest {
}

message GetBlockStreamRequest {
}

message SendTransactionRequest {
  string rawTransaction = 1;
}

message SendTransactionResponse {
  string txHash = 1;
}

message FlashBlockStrRequest {
}

message RawFlashBlockStrResponse {
  bytes message = 1;
}

service BaseApi {
  rpc SendTransaction(SendTransactionRequest) returns (SendTransactionResponse);
  rpc GetBlockStream(GetBlockStreamRequest) returns (stream BaseBlock);
  rpc GetRawFlashBlockStream(GetRawFlashBlocksStreamRequest) returns (stream RawFlashBlockStrResponse);
}

Response

Normal

res: txHash:"0xaf430540d20eae2448947ffb254b03180b82333ef0c56bd526f7047489c195b5"

Abnormal

res: txHash:"Unknown TxHash"