eth_call - Worldchain

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

This method executes a new message call immediately without creating a transaction on the World Chain blockchain. This is commonly used to read data from smart contracts.

Parameters

Parameter

Type

Description

transaction

object

Transaction call object with to, data, and optional from, gas, gasPrice, value

blockNumber

string

Block number in hex, or "latest", "earliest", "pending"

Request

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_call",
    "params": [{"to": "0x1234567890123456789012345678901234567890", "data": "0x70a08231000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e"}, "latest"],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_call",
    "params": [{"to": "0x1234567890123456789012345678901234567890", "data": "0x70a08231000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e"}, "latest"],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data)))
    .catch(error => console.log(error));

import requests
import json

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

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_call",
    "params": [{"to": "0x1234567890123456789012345678901234567890", "data": "0x70a08231000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e"}, "latest"],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

use reqwest::header;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::new();
    
    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header(header::CONTENT_TYPE, "application/json")
        .body(r#"{
            "jsonrpc": "2.0",
            "method": "eth_call",
            "params": [{"to": "0x1234567890123456789012345678901234567890", "data": "0x70a08231000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e"}, "latest"],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000"
}

Response Parameters

Field

Type

Description

result

string

The return value of the executed contract method

Use Case

The eth_call method on World Chain is typically used for:

Reading contract state
Token balance queries
Contract function simulation
Data retrieval

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid ACCESS-TOKEN

Web3 Integration

import { ethers } from 'ethers';

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

const result = await provider.call({
    to: '0x1234567890123456789012345678901234567890',
    data: '0x70a08231000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e'
});
console.log('Result:', result);

import { createPublicClient, http } from 'viem';
import { worldchain } from 'viem/chains';

const client = createPublicClient({
    chain: worldchain,
    transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const result = await client.call({
    to: '0x1234567890123456789012345678901234567890',
    data: '0x70a08231000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e'
});
console.log('Result:', result);

Previouseth_gasprice - Worldchain Nexteth_gettransactionbyblockhashandindex - Worldchain

Last updated 11 days ago

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