async/await & the Fetch API

async/await basics

await pauses the function until the promise settles, without blocking the rest of the app.

async function getData() {
  const result = await fetchData();
  console.log(result);
}

Sugar over Promises

async/await is syntax sugar over Promises — it lets asynchronous code read top-to-bottom like synchronous code.

Fetching data

fetch() returns a promise that resolves to a response; call .json() to parse the body.

async function getUser() {
  try {
    const response = await fetch("https://api.example.com/user/1");
    const data = await response.json();
    console.log(data);
  } catch (err) {
    console.log("Fetch failed:", err.message);
  }
}

Always handle errors

Wrap await in try/catch — a rejected promise inside an async function throws, and an unhandled rejection can crash a Node process.