Execute a read-only contract call

POST

https://lukso.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Changed. A call that sets blobVersionedHashes or authorizationList must include to. Without it the node rejects the request with an error (missing "to" in blob transaction or authorizationList provided for contract creation, but "to" field is missing).

Invokes eth_call on LUKSO Mainnet and returns its result.

Body

application/json

jsonrpcstringrequired

JSON-RPC protocol version. Use 2.0.

methodstringrequired

JSON-RPC method to invoke.

paramsArray<object | string>required

The first object specifies the call transaction object. The second (optional) parameter specifies the block context.

Show child attributes

Any of

tostring

Value of to.

datastring

Value of data.

string

idintegerrequired

Identifier used to correlate the request with its response.

Response

200OK

Result of the call

Execute a read-only contract call

curl -X POST 'https://lukso.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "eth_call",
    "params": [
      {
        "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
        "data": "0x"
      },
      "latest"
    ]
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://lukso.nownodes.io/");
const result = await provider.send("eth_call", [
  {
    "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
    "data": "0x"
  },
  "latest"
]);
console.log(result);

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

uri = URI('https://lukso.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_call",
  "params": [
    {
      "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
      "data": "0x"
    },
    "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://lukso.nownodes.io/"))
response = w3.provider.make_request("eth_call", [
  {
    "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
    "data": "0x"
  },
  "latest"
])
print(response)

import { createPublicClient, http } from "viem";

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

const result = await client.request({
  method: "eth_call",
  params: [
  {
    "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
    "data": "0x"
  },
  "latest"
],
});

console.log(result);

const endpoint = "https://lukso.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_call", params: [
  {
    "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
    "data": "0x"
  },
  "latest"
], id: 1 });
console.log(result);

const response = await fetch('https://lukso.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "id": 1,
      "method": "eth_call",
      "params": [
        {
          "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
          "data": "0x"
        },
        "latest"
      ]
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_call",
  "params": [
    {
      "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
      "data": "0x"
    },
    "latest"
  ]
}

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

require 'net/http'
require 'json'

uri = URI('https://lukso.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "eth_call",
    "params": [
      {
        "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
        "data": "0x"
      },
      "latest"
    ]
  }'

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",
  "id": 1,
  "method": "eth_call",
  "params": [
    {
      "to": "0x78b28c90b553c9445e37c0e13edb78402ce69d42",
      "data": "0x"
    },
    "latest"
  ]
}

200

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