safe-async-fn

Lightweight wrapper to make async functions safer.

Install

npm install safe-async-fn

Usage

const safeAsyncFn = require("safe-async-fn");

async function unsafeFn() {
  // May throw synchronously, return a value, or return a rejected promise.
  // Works for sync function too!
}

const safeFn = safeAsyncFn(unsafeFn);

const [err, res] = await safeFn(); // This call will not fail

API

safeAsyncFn(asyncFn)

Wraps the provided function and returns a new one, to safely capture errors.

• Returns a new saferFn.

asyncFn

Type: function
The async function to make safer to call.

saferFn(...args)

This function wraps the original asyncFn and will pass through the received parameters to it.

• If asyncFn succeeds, returns Promise<[null, asyncFnResult]>.
• If asyncFn throws synchronously or rejects, returns Promise<[err, null]>.