eth_getCode - Somnia

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

This method returns the bytecode at a given address on the Somnia network. This is useful for verifying contract deployment, checking if an address is a contract, and analyzing contract bytecode. Somnia's compiled EVM executes this bytecode at near-native speeds.

Parameters

Parameter

Type

Required

Description

address

string

Yes

The address to get code from

blockNumber

string

Yes

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

Request Example

curl -X POST https://go.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "eth_getCode",
  "params": [
    "0xContractAddress",
    "latest"
  ]
}'

const axios = require('axios');

const url = 'https://go.getblock.io/<ACCESS-TOKEN>/';

const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'eth_getCode',
  params: ['0xContractAddress', 'latest']
};

axios.post(url, payload, {
  headers: { 'Content-Type': 'application/json' }
})
.then(response => console.log(response.data))
.catch(error => console.error(error));

import requests
import json

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

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "eth_getCode",
    "params": ["0xContractAddress", "latest"]
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print(response.json())

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    
    let payload = json!({
        "jsonrpc": "2.0",
        "id": "getblock.io",
        "method": "eth_getCode",
        "params": ["0xContractAddress", "latest"]
    });

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);
    
    Ok(())
}

Response Example

{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": "0x608060405234801561001057600080fd5b50600436106100365760003560e01c806370a082311461003b578063a9059cbb14610069575b600080fd5b..."
}

Response Parameters

Parameter

Type

Description

result

string

Contract bytecode (0x if not a contract)

Use Cases

Verify contract deployment
Check if address is a contract vs EOA
Analyze contract bytecode
Detect proxy contracts
Security auditing

Error Handling

Error Code

Description

-32602

Invalid params - malformed address

-32603

Internal error - node processing issues

SDK Integration

const { ethers } = require('ethers');

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

const code = await provider.getCode('0xContractAddress');
console.log(code);
// "0x" means it's an EOA, otherwise it's a contract

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

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

const code = await client.getCode({
  address: '0xContractAddress'
});
console.log(code);

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