Get chain information

This example shows how to connect to the api and retrieve the chain information such as the token name, the ss58 format for address encoding and the token decimals.

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

async function main () {
  // Create connection to websocket
  const wsProvider = new WsProvider('wss://rpc.polkadot.io');
  // Create a new instance of the api
  const api = await ApiPromise.create({ provider: wsProvider });
  // get the chain information
  const chainInfo = await api.registry.getChainProperties()

  console.log(chainInfo);
  // for Polkadot this would print
  // {ss58Format: 0, tokenDecimals: [10], tokenSymbol: [DOT]}
}

main().catch(console.error).finally(() => process.exit());