getClass | Starknet API Docs

Get the contract class definition in the given block associated with the given hash

Request Parameters

Request

block_idstring

Block reference ("latest", "l1_accepted", block hash, or block number)

class_hashfelt252

Class hash

Response Body

Response

resultOBJECT

The contract class, if found Contract class definition with Sierra program, entry points, and ABI

{  "jsonrpc": "2.0",  "method": "starknet_getClass",  "params": [    "latest",    "0x7f3777c99f3700505ea966676aac4a0d692c2a9f5e667f4c606b51ca1dd3420"  ],  "id": 1}

import { RpcProvider } from 'starknet';    const provider = new RpcProvider({      nodeUrl: 'https://api-starknet-mainnet.n.dwellir.com/YOUR_API_KEY',    });    const payload = {      method: 'starknet_getClass',      params: [        "latest",        "0x7f3777c99f3700505ea966676aac4a0d692c2a9f5e667f4c606b51ca1dd3420"      ]    };    const result = await provider.fetchEndpoint(payload.method, payload.params);    console.log(result);

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

Errors

Code	Message
24	Block not found
28	Class hash not found

Examples

Bash

curl -X POST https://api-starknet-mainnet.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "starknet_getClass",
    "params": [
      "latest",
      "0x7f3777c99f3700505ea966676aac4a0d692c2a9f5e667f4c606b51ca1dd3420"
    ],
    "id": 1
  }'

starknet_getClass - Get the contract class...

Request Parameters

Response Body

Errors

Examples

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