Build on Locality.

import { io } from 'socket.io-client';

const url = 'https://your-wallet-server';
const email = 'your email';
const password = 'your password';

// 1. Sign in. The answer carries your access token.
const guest = io(url);
guest.emit('auth:login', { body: { email, password } });
guest.once('auth:logged', ({ result }) => {
  // 2. Connect again with the token, then ask for communities.
  const socket = io(url, { auth: { token: result.user.access } });
  socket.emit('community:list', { query: { take: 2 } });
  socket.once('community:listed', ({ result }) => console.log(result.communities));
});

import { StargateClient } from '@cosmjs/stargate';

const rpc = 'http://your-node:26657';
const rest = 'http://your-node:1317';
const communityAddress = 'loca1...';

// A CosmJS client reads the standard modules: here, what a Community holds.
const client = await StargateClient.connect(rpc);
console.log(await client.getAllBalances(communityAddress));

// The network's own queries are plain REST.
const { communities } = await (await fetch(`${rest}/loca/comm/community`)).json();
console.log(communities);