I've been using Promises for a long time and I've always disliked how bulky written code looked. So it makes sense that I love async/await (in theory).
However, you can only use await within an async function. If I currently have each route as a function (ex export function createLike(req, res, next)), can that route be an async function? Is there anything I need to check if I do that? Or do strange things happen if I do that? I could keep the function as a normal function with an async function called within it like so (if that's the case):
export function createLike(req, res, next) {
doStuff() // does this need to be "await doStuff()" if it's the only actionable call in the parent function?
async function doStuff() {
// do asynchronous stuff via async/await
res.status(200).send('success')
}
}
export async function createLike(req, res, next) {
Easy-peasy. Declaring a function as async does little more than make it return a Promise.
Unravelling your whole trivial example:
export async function createLike(req, res, next) {
// Don't bother putting inside a 'doStuff' if it's all you have.
// Get straight to the asyncing
const { something } = await someAsyncMethod();
const { foo } = await fetch(`/get/this/${something}`).then((r) => r.json());
console.log(foo);
res.status(200).send('success')
}
This will wait until it gets someAsyncMethod()s response, then fetches something, before sending the response.
Use koa 2+. Its built for async/await stuff.