state_getMetadata - JSON-RPC Method

Returns the runtime metadata as a SCALE-encoded hex string. Use libraries like polkadot.js to decode.

Code Examples

cURL

curl ${S.rpcBase} \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"state_getMetadata","params":[],"id":1}'

TypeScript (polkadot.js)

import { ApiPromise, WsProvider } from '@polkadot/api';

const provider = new WsProvider('${S.wsBase}');
const api = await ApiPromise.create({ provider });
const metadata = await api.rpc.state.getMetadata();
console.log(metadata.toHuman());
await api.disconnect();