readme.hbs

# promisify-call

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Promisify a function call so users can call a function with a callback or get a promise.
* **2.0** works only with native `Promise` so requires Node >= 4.0.
* **1.0** uses [Bluebird](www.bluebirdjs.com) and should work with older Node.js

## Installation

`npm install promisify-call`

## Usage

```js
function _uppercase(param, fn) {
  setTimeout(() => {
    return fn(null, param.toUpperCase());
  }, 50);
}

function uppercase(param, fn) {
  return promisifyCall(this, _uppercase, ...arguments);
}

// now we can call it using callback-style
uppercase('foo', (err, res) => {
  console.log(res); // FOO
});

// OR promise style
const res = await uppercase('foo');
console.log(res); // FOO
```

## API Reference

{{>all-docs~}}

## License

Copyright 2015 Bojan D.

Licensed under the MIT License.