JavaScript: работа с серверными API

1const res = await fetch('/api/users');
2const data = await res.json();

1const query = `{ user(id: 1) { name, email } }`;
2const res = await fetch('/graphql', {
3  method: 'POST',
4  headers: { 'Content-Type': 'application/json' },
5  body: JSON.stringify({ query }),
6});

1const ws = new WebSocket('ws://localhost:3000');
2ws.onmessage = (e) => console.log(JSON.parse(e.data));
3ws.send(JSON.stringify({ type: 'ping' }));