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# requests
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[![Made by unshift][made-by]](http://unshift.io)[![Version npm][version]](http://browsenpm.org/package/requests)[![Build Status][build]](https://travis-ci.org/unshiftio/requests)[![Dependencies][david]](https://david-dm.org/unshiftio/requests)[![Coverage Status][cover]](https://coveralls.io/r/unshiftio/requests?branch=master)[![IRC channel][irc]](http://webchat.freenode.net/?channels=unshift)
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[made-by]: https://img.shields.io/badge/made%20by-unshift-00ffcc.svg?style=flat-square
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[version]: https://img.shields.io/npm/v/requests.svg?style=flat-square
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[build]: https://img.shields.io/travis/unshiftio/requests/master.svg?style=flat-square
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[david]: https://img.shields.io/david/unshiftio/requests.svg?style=flat-square
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[cover]: https://img.shields.io/coveralls/unshiftio/requests/master.svg?style=flat-square
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[irc]: https://img.shields.io/badge/IRC-irc.freenode.net%23unshift-00a8ff.svg?style=flat-square
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Requests is a small library that implements fully and true streaming XHR for
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browsers that support these methods. It uses a variety of proprietary
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`responseType` properties to force a streaming connection, even for binary data.
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For browsers that don't support this we will simply fallback to a regular but
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**async** XHR 1/2 request or ActiveXObject in even older deprecated browsers.
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- Internet Explorer >= 10: `ms-stream`
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- FireFox >= 9: `moz-chunked`
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- FireFox < 20: `multipart`
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This module comes with build-in protection against ActiveX blocking that is
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frequently used in firewalls & virus scanners.
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## Installation
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The module is released in the public npm registry and can be installed using:
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```
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npm install --save requests
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```
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## Usage
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The API is a mix between the Fetch API, mixed with EventEmitter API for the
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event handling.
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```js
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'use strict';
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var requests = require('requests');
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```
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Now that we've included the library we can start making requests. The exported
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method accepts 2 arguments:
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- **url** Required URL that you want to have requested.
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- **options** Optional object with additional configuration options:
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- **streaming** Should we use streaming API's to fetch the data, defaults to
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`false`.
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- **method** The HTTP method that should be used to get the contents, defaults
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to `GET`.
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- **mode** The request mode, defaults to `cors`
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- **headers** Object with header name/value that we need to send to the server.
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- **timeout** The timeout in ms before we should abort the request.
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- **manual** Manually `open` the request, defaults to `false`.
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```js
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requests('https://google.com/foo/bar', { streaming })
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.on('data', function (chunk) {
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console.log(chunk)
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})
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.on('end', function (err) {
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if (err) return console.log('connection closed due to errors', err);
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console.log('end');
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});
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```
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## Events
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In the example above you can see the that we're listing to various of events.
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The following events are emitted:
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- `data` A new chunk of data has been received. It can be a small chunk but also
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the full response depending on the environment it's loaded in.
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- `destroy` The request instance has been fully destroyed.
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- `error` An error occurred while requesting the given URL.
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- `end` Done with requesting the URL. An error argument can be supplied if the
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connection was closed due to an error.
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- `before` Emitted before we send the actual request.
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- `send` Emitted after we've succesfully started the sending of the data.
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### requests#destroy
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Destroy the running XHR request and release all the references that the
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`requests` instance holds. It returns a boolean as indication of a successful
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destruction.
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```js
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requests.destroy();
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```
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### Requests.requested
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The total amount of requests that we've made in this library. It also serves as
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unique id for each request that we store in `.active`.
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### Requests.active
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An object that contains all running and active requests. Namespaced under
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`request.requested` id and the requests instance.
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## License
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MIT
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