eth_sendTransaction

POST

wss://optimism.nownodes.io/wss/{api_key}

Creates new message call transaction or a contract creation, if the data field contains code.

Connection URL:

Copied!

wss://optimism.nownodes.io/wss/{{api_key}}

Open the connection, then send the message below as a text frame.

Example:

Copied!

wscat -c 'wss://optimism.nownodes.io/wss/YOUR_API_KEY'
> {"id":1,"jsonrpc":"2.0","method":"eth_sendTransaction","params":[{"from":"0xb60e8dd61c5d32be8058bb8eb970870f07233155","data":"0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"}]}

Body

application/json

object

Parameters

api_keystringrequiredpath

Your NOWNodes API key.

Response

200OK

A successful response.

eth_sendTransaction

curl -X POST 'wss://optimism.nownodes.io/wss/{api_key}' \
  -H 'Content-Type: application/json' \
  -d '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "eth_sendTransaction",
    "params": [
      {
        "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
      }
    ]
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("wss://optimism.nownodes.io/wss/{api_key}");
const result = await provider.send("eth_sendTransaction", [
  {
    "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
    "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
  }
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('wss://optimism.nownodes.io/wss/{api_key}')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_sendTransaction",
  "params": [
    {
      "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
      "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
    }
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("wss://optimism.nownodes.io/wss/{api_key}"))
response = w3.provider.make_request("eth_sendTransaction", [
  {
    "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
    "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
  }
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("wss://optimism.nownodes.io/wss/{api_key}"),
});

const result = await client.request({
  method: "eth_sendTransaction",
  params: [
  {
    "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
    "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
  }
],
});

console.log(result);

const endpoint = "wss://optimism.nownodes.io/wss/{api_key}";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "eth_sendTransaction", params: [
  {
    "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
    "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
  }
], id: 1 });
console.log(result);

const response = await fetch('wss://optimism.nownodes.io/wss/{api_key}', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "id": 1,
      "jsonrpc": "2.0",
      "method": "eth_sendTransaction",
      "params": [
        {
          "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
          "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
        }
      ]
    }),
});

const data = await response.json();

import requests

payload = {
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_sendTransaction",
  "params": [
    {
      "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
      "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
    }
  ]
}

response = requests.post('wss://optimism.nownodes.io/wss/{api_key}', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('wss://optimism.nownodes.io/wss/{api_key}')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "eth_sendTransaction",
    "params": [
      {
        "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
      }
    ]
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_sendTransaction",
  "params": [
    {
      "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
      "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
    }
  ]
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32000,
    "message": "unknown account"
  }
}