async-hooks


Async 'will' and 'did' hooks for any methods.

install

npm i async-hooks

usage

``js
'use strict';
const hooks = require('async-hooks');

// Define your class
class MyClass {
constructor() {
hooks(this);
}

method(arg1, arg2) {
return Promise.resolve(arg1 + arg2);
}
}

// Instantiate MyClass
const myClass = new MyClass();
// Now you can add hooks to any class methods

myClass.will('method', (arg1, arg2) => {
// ... do something
});

myClass.will('method', (arg1, arg2) => {
// ... do something else
});

myClass.did('method', res => {
// ... do something
return res;
});

myClass.did('method', res => {
// ... do something else
return res;
});
`

API

$3

Adds will and did methods to the object. Both will and did are lazy methods. So to use auto hooks you still should run it as:

`js
hooks(this, 'method', 'anotherMethod');
`

$3

Adds will (runs before) hook function to the method only if method exists and it is a function. hook function will receive all arguments as the original method. If hook function is async it should return a Promise.

If object has will it will be run before all other hooks

$3

Adds did (runs after) hook function to the method only if method exists and it is a function. hook function will receive a result of the original method or previous hook and should return result or Promise.

If object has did it will be run after all other hooks

$3

If object has catch` it will receive the throws and orginal arguments.

License MIT;

© velocityzen