eth_signTransaction

POST

https://lsk.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Signs a transaction locally with the private key of the specified account.

Body

application/json

jsonrpcstringrequired

methodstringeth_signTransactionrequired

paramsArray<object>required

Array with a single object representing the transaction to sign.

Show child attributes

fromstringrequired

The address of the account that will sign the transaction.

tostring

The destination address of the transaction.

gasstring

Gas limit for the transaction, as a hex string.

gasPricestring

Gas price in wei, as a hex string.

valuestring

Amount of wei to send, as a hex string.

datastring

Data payload of the transaction, hex encoded.

noncestring

Nonce of the transaction, as a hex string.

chainIdinteger

The chain ID to protect against replay attacks.

idintegerrequired

Response

200OK

JSON-RPC response with the signed transaction data

eth_signTransaction

curl -X POST 'https://lsk.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_signTransaction",
    "params": [
      {
        "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
        "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
        "gas": "0x5208",
        "gasPrice": "0x4a817c800",
        "value": "0xde0b6b3a7640000",
        "data": "0x",
        "nonce": "0x1",
        "chainId": 1
      }
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://lsk.nownodes.io/");
const result = await provider.send("eth_signTransaction", [
  {
    "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
    "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
    "gas": "0x5208",
    "gasPrice": "0x4a817c800",
    "value": "0xde0b6b3a7640000",
    "data": "0x",
    "nonce": "0x1",
    "chainId": 1
  }
]);
console.log(result);

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

uri = URI('https://lsk.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_signTransaction",
  "params": [
    {
      "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
      "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
      "gas": "0x5208",
      "gasPrice": "0x4a817c800",
      "value": "0xde0b6b3a7640000",
      "data": "0x",
      "nonce": "0x1",
      "chainId": 1
    }
  ],
  "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("https://lsk.nownodes.io/"))
response = w3.provider.make_request("eth_signTransaction", [
  {
    "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
    "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
    "gas": "0x5208",
    "gasPrice": "0x4a817c800",
    "value": "0xde0b6b3a7640000",
    "data": "0x",
    "nonce": "0x1",
    "chainId": 1
  }
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://lsk.nownodes.io/"),
});

const result = await client.request({
  method: "eth_signTransaction",
  params: [
  {
    "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
    "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
    "gas": "0x5208",
    "gasPrice": "0x4a817c800",
    "value": "0xde0b6b3a7640000",
    "data": "0x",
    "nonce": "0x1",
    "chainId": 1
  }
],
});

console.log(result);

const endpoint = "https://lsk.nownodes.io/";
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_signTransaction", params: [
  {
    "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
    "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
    "gas": "0x5208",
    "gasPrice": "0x4a817c800",
    "value": "0xde0b6b3a7640000",
    "data": "0x",
    "nonce": "0x1",
    "chainId": 1
  }
], id: 1 });
console.log(result);

const response = await fetch('https://lsk.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_signTransaction",
      "params": [
        {
          "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
          "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
          "gas": "0x5208",
          "gasPrice": "0x4a817c800",
          "value": "0xde0b6b3a7640000",
          "data": "0x",
          "nonce": "0x1",
          "chainId": 1
        }
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_signTransaction",
  "params": [
    {
      "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
      "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
      "gas": "0x5208",
      "gasPrice": "0x4a817c800",
      "value": "0xde0b6b3a7640000",
      "data": "0x",
      "nonce": "0x1",
      "chainId": 1
    }
  ],
  "id": 1
}

response = requests.post('https://lsk.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://lsk.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_signTransaction",
    "params": [
      {
        "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
        "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
        "gas": "0x5208",
        "gasPrice": "0x4a817c800",
        "value": "0xde0b6b3a7640000",
        "data": "0x",
        "nonce": "0x1",
        "chainId": 1
      }
    ],
    "id": 1
  }'

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

Request Body

{
  "jsonrpc": "2.0",
  "method": "eth_signTransaction",
  "params": [
    {
      "from": "0x407d73d8a49eeb85d32cf465507dd71d507100c1",
      "to": "0x85a3d76e3a6a4b16b5b442c1b11a03bdcc0a9f30",
      "gas": "0x5208",
      "gasPrice": "0x4a817c800",
      "value": "0xde0b6b3a7640000",
      "data": "0x",
      "nonce": "0x1",
      "chainId": 1
    }
  ],
  "id": 1
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xf86c808504a817c80082520894b60e8dd61c5d32be8058bb8eb970870f072331550880de0b6b3a76400008025a08b5a9e4f3e93096d046a9e4d4f28e0e2aab034c8998a2a4015304e80a40338c5a047d092f3246c4e11d995cbca7ed8a47aaf3dfeff8b6af33d57f4caba1c88b52c7"
}

Documentation

How to migrate to NOWNodes

eth_signTransaction

Authorizations

Body

Response