eth_sendRawTransaction - Celo

Example code for the eth_newFilter JSON-RPC method. Complete guide on how to use eth_newFilter JSON-RPC in GetBlock Web3 documentation.

The eth_sendRawTransaction method submits a pre-signed transaction to the Celo network for execution. This is the primary method for broadcasting transactions. With Celo's one-block finality and sub-cent fees, transactions are confirmed rapidly and economically. Celo also supports fee abstraction, allowing gas to be paid in stablecoins.

Parameters

Parameter

Type

Required

Description

signedTransactionData

string

Yes

The signed transaction data as a hex string

Request Example

curl

curl -X POST https://go.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "eth_sendRawTransaction",
  "params": ["0xf86c098504a817c800825208943535353535353535353535353535353535353535880de0b6b3a76400008025a028ef61340bd939bc2195fe537567866003e1a15d3c71ff63e1590620aa636276a067cbe9d8997f761aecb703304b3800ccf555c9f3dc64214b297fb1966a3b6d83"]
}'

example.js

const axios = require('axios');

const url = 'https://go.getblock.io/<ACCESS-TOKEN>/';

const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'eth_sendRawTransaction',
  params: ['0xf86c098504a817c800825208943535353535353535353535353535353535353535880de0b6b3a76400008025a028ef61340bd939bc2195fe537567866003e1a15d3c71ff63e1590620aa636276a067cbe9d8997f761aecb703304b3800ccf555c9f3dc64214b297fb1966a3b6d83']
};

axios.post(url, payload, {
  headers: { 'Content-Type': 'application/json' }
})
.then(response => console.log(response.data))
.catch(error => console.error(error));

example.py

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "eth_sendRawTransaction",
    "params": ["0xf86c098504a817c800825208943535353535353535353535353535353535353535880de0b6b3a76400008025a028ef61340bd939bc2195fe537567866003e1a15d3c71ff63e1590620aa636276a067cbe9d8997f761aecb703304b3800ccf555c9f3dc64214b297fb1966a3b6d83"]
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print(response.json())

Response Example

response.json

{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": "0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b"
}

Response Definition

Field

Type

Description

result

string

32-byte transaction hash

Use Cases

Submit signed transactions to the network
Deploy smart contracts
Transfer CELO tokens
Execute contract functions
Send stablecoin payments (cUSD, cEUR)

Error Handling

Error Code

Description

-32602

Invalid params - malformed transaction data

-32603

Internal error - node processing issues

-32000

Transaction rejected - insufficient funds, nonce issues

SDK Integration

ethers-example.js

const { ethers } = require('ethers');

const provider = new ethers.JsonRpcProvider('https://go.getblock.io/<ACCESS-TOKEN>/');
const wallet = new ethers.Wallet('YOUR_PRIVATE_KEY', provider);

const tx = await wallet.sendTransaction({
  to: '0x8626f6940E2eb28930eFb4CeF49B2d1F2C9C1199',
  value: ethers.parseEther('1.0')
});
console.log(tx.hash);

contractkit-example.js

const { newKit } = require('@celo/contractkit');

const kit = newKit('https://go.getblock.io/<ACCESS-TOKEN>/');
kit.addAccount('YOUR_PRIVATE_KEY');

const tx = await kit.sendTransaction({
  to: '0x8626f6940E2eb28930eFb4CeF49B2d1F2C9C1199',
  value: kit.web3.utils.toWei('1', 'ether')
});
console.log(tx.transactionHash);

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