Safely use async/await without all the try catch blocks
-
[error, data]promise signatures - Throws on native errors
const safeAwait = require('safe-await')
async function fooBar() {
const [error, data] = await safeAwait(promiseOne())
if (error) {
// handle error, retry, ignore, whatever
}
console.log(data)
}See usage and tests for more examples.
You can invert the error and data return values by passing true as the second argument.
const safeAwait = require('safe-await')
async function fooBar() {
const invert = true
const [data, error] = await safeAwait(promiseOne(), invert)
if (error) {
// handle error, retry, ignore, whatever
}
console.log(data)
}Alternatively, you can use the safeInverse function.
const { safeInverse } = require('safe-await')
async function fooBar() {
const [data, error] = await safeInverse(promiseOne())
if (error) {
// handle error, retry, ignore, whatever
}
console.log(data)
}- gist
- https://blog.grossman.io/how-to-write-async-await-without-try-catch-blocks-in-javascript/
- http://jessewarden.com/2017/11/easier-error-handling-using-asyncawait.html
- https://medium.freecodecamp.org/avoiding-the-async-await-hell-c77a0fb71c4c
- https://medium.com/@dominic.mayers/async-await-without-promises-725e15e1b639
- https://medium.com/@dominic.mayers/on-one-hand-the-async-await-framework-avoid-the-use-of-callbacks-to-define-the-main-flow-in-812317d19285
- https://dev.to/sadarshannaiynar/capture-error-and-data-in-async-await-without-try-catch-1no2
- https://medium.com/@pyrolistical/the-hard-error-handling-case-made-easy-with-async-await-597fd4b908b1
- https://gist.github.com/woudsma/fe8598b1f41453208f0661f90ecdb98b