decb

decb

decb is a module that translates modules to a promisified version of them. Note that it is not possible to differentiate between asynchronous and synchronous functions, so (if needed) it has do be done manually.

Code Example

Use fs.readFile with Promises:

    const decb = require('decb');
    const fs = decb(require('fs'));

    fs.readFile('example.js', 'utf8').then(file => {
        console.log(file);
    });

    console.log(fs.readFileSync('example.js', 'utf8'));
    //Returns a promise and does not work

Use fs.readFile with Promises, but don't translate fs.readFileSync

    const decb = require('decb');
    const fs = decb(require('fs'), {
      ignore: ['readFileSync']
    });

    fs.readFile('example.js', 'utf8').then(file => {
        console.log(file);
    });

    console.log(fs.readFileSync('example.js', 'utf8'));
    //Works as expected

Use fs.readFile with Promises, but don't change the rest of the module

    const decb = require('decb');
    const fs = decb(require('fs'), {
      use: ['readFile']
    });

    fs.readFile('example.js', 'utf8').then(file => {
        console.log(file);
    });

    console.log(fs.readFileSync('example.js', 'utf8'));
    console.log(fs.readdirSync('lib'));
    //Works as expected

Installation

$ npm install decb

API

###decb(module[,config])

• module: an npm module to translate
• config: a config object with either an ignore or use property

Returns a promisified version of the module

License

MIT