eth_getCode - Celo

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 stored at a given address on the Celo network. This is useful for verifying contract deployments and distinguishing between EOAs (Externally Owned Accounts) and contract accounts.

Parameters

Parameter	Type	Required	Description
address	string	Yes	Contract address to query
blockNumber	string	Yes	Block number in hex, or "latest", "earliest", "pending"

Request Example

cURL

curl

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": [
    "0x765DE816845861e75A25fCA122bb6898B8B1282a",
    "latest"
  ]
}'

JavaScript (Axios)

Python

Response Example

response.json

{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": "0x608060405234801561001057600080fd5b50600436106100..."
}

Response Definition

Field	Type	Description
result	string	Contract bytecode as hex string

Use Cases

• Verify contract deployment

• Check if address is a contract or EOA

• Analyze contract bytecode

• Validate proxy implementations

Error Handling

Error Code	Description
-32602	Invalid params - malformed address
-32603	Internal error - node processing issues

SDK Integration

Ethers.js

ethers.js

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

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

const code = await provider.getCode('0x765DE816845861e75A25fCA122bb6898B8B1282a');
console.log(code);
console.log('Is contract:', code !== '0x');

ContractKit