asynchandler

Callback adapter to use in a Promise.

Why

To adapt callbacks paradigm to promises paradigm in a nutshel.

Installation

$ npm i -s @allnulled/asynchandler

Usage

This example demonstrates how to use asynchandler with the node fs native module to read and write files using the asynchronous API:

const asynchandler = require("@allnulled/asynchandler");

const example = async function() {
    await new Promise((ok, fail) => {
        fs.writeFile("file.txt", "Contents of the file", "utf8", asynchandler(ok, fail));
    });
    await new Promise(function(ok, fail) {
        fs.readFile("file.txt", "utf8", asynchandler(ok, fail));
    });
};

example();

Source code

The source code of this module is very simple:

module.exports = function(ok, fail) {
    return function(error, data) {
        if (error) {
            fail(error);
            return;
        }
        ok(data);
        return;
    }
};

License

This project is released under WTFPL or What The Fuck Public License. Do what you want.