promiseify-all

promiseify-all

Batch conversion to promise.

Maintained by @by11880.

Install

Node.js version recommended to use >=6.

npm install promiseify-all

Options

You can set the following parameter:

• @param {string|function|object} target
• @param {null|object} [ctx=null]
• @param {boolean} [isCover=true]
• @param {string|array} [only=[]]
• @returns {function|object}

Examples

Wrap entire Node modules recursively:

const fs = require('promiseify-all')('fs');
fs.readFile('README.md').then((content)=>{
  console.log(content);
});

Wrap a single function:

const promiseify = require('promiseify-all');

function foo(cb) {
  setTimeout(()=> cb(null, 1), 100);
}

const fooSync = promiseify(foo);
fooSync().then((res)=>{
  console.log(res === 1);
});

Wrap a method on an Object:

const promiseify = require('promiseify-all');
const Classes = {
  foo(a, b, cb){
    cb(null, a, b);
  }
};

const c = promiseify(Classes, c);

c.foo(1, 2).then((res)=>{
  console.log(res);  // [1, 2]
});

Wrap a the methods specified:

const Classes = {
  foo(a, b, cb){
    cb(null, a, b);
  },
  bar(a, cb){
    cb(null, a);
  },
  hello(cb){
    cb(null)
  }
};
const c = promiseify(Classes, Classes, true, 'bar hello');
Promise.all([c.bar(1), c.hello()]).then(([bar, hello])=>{
  console.log(bar);
  console.log(hello);
});

Tests

Run the tests after installing dependencies with:

npm run test

License

MIT