Get Contract Bytecode at Address

POST

https://robinhood.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the contract code stored at a given address.

Body

application/json

JSON-RPC 2.0 request to the Robinhood Chain mainnet endpoint.

Request payload for Get Contract Bytecode at Address.

jsonrpcstringrequired

JSON-RPC version.

methodstringrequired

JSON-RPC method name.

paramsArray<string>required

Parameters array with two elements: 1. The address to get the code for (hex string, 0x-prefixed). 2. The block number or block tag (e.g., "latest", "earliest", "pending").

idintegerrequired

Request identifier.

Response

200OK

Contract bytecode in hex format

500Internal Server Error

Upstream node or gateway error.

Get Contract Bytecode at Address

curl -X POST 'https://robinhood.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getCode",
    "params": [
      "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
      "latest"
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://robinhood.nownodes.io/");
const result = await provider.send("eth_getCode", [
  "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
  "latest"
]);
console.log(result);

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

uri = URI('https://robinhood.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_getCode",
  "params": [
    "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
    "latest"
  ],
  "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://robinhood.nownodes.io/"))
response = w3.provider.make_request("eth_getCode", [
  "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
  "latest"
])
print(response)

import { createPublicClient, http } from "viem";

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

const result = await client.request({
  method: "eth_getCode",
  params: [
  "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
  "latest"
],
});

console.log(result);

const endpoint = "https://robinhood.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_getCode", params: [
  "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
  "latest"
], id: 1 });
console.log(result);

const response = await fetch('https://robinhood.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_getCode",
      "params": [
        "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
        "latest"
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_getCode",
  "params": [
    "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
    "latest"
  ],
  "id": 1
}

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

require 'net/http'
require 'json'

uri = URI('https://robinhood.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_getCode",
    "params": [
      "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
      "latest"
    ],
    "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_getCode",
  "params": [
    "0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73",
    "latest"
  ],
  "id": 1
}

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go value of type common.Address"
  }
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go value of type common.Address"
  }
}

Documentation

How to migrate to NOWNodes

Get Contract Bytecode at Address

Authorizations

Body

Response