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tentacles Build Status Coverage Status Dependencies npm

Tentacles is a extensible, promise-based GitHub client for node.js. It's designed to be easy to configure and to be as stateless as possible, making it suitable for server environments.

It can also cache GitHub HTTP responses to speed up your app and reduce rate limits.

Tentacles does not yet cover the entire GitHub API: the methods currently available are mostly those used by Gitter. It is, however, very easy to extend and we welcome pull-requests.

The client aims to maintain a direct one-to-one mapping with the GitHub API as much as possible.

Usage

Basic usage is straight-forward:

var Tentacles = require('tentacles');
var tentacles = new Tentacles();

tentacles.user.get('suprememoocow')
  .then(function(user) {
    // ...
  });

To specify an access token:

var Tentacles = require('tentacles');
var tentacles = new Tentacles();

tentacles.user.get('suprememoocow', { accessToken: '...' })
  .then(function(user) {
    // ...
  });

... or specify the access token globally ...

var Tentacles = require('tentacles');
var tentacles = new Tentacles({ accessToken: '...' });

tentacles.user.get('suprememoocow')
  .then(function(user) {
    // ...
  });

General Pattern

All API methods adhere to the same pattern:

  • For GET methods: method(param1, param2, ..., options).
  • For POST/PUT/POST/DELETE methods: method(param1, param2, body, options).

options is not required. If specified, it should contain:

  • query: a hash of query parameters. For example { query: { sort: 'state' } }
  • accessToken: the access token to pass in for non-anonymous requests. This will be used to set the Authorization header.
  • spread: set to true to make the promise return an array of [body, response], which will give you access to the headers, status code, etc. Read more here.
  • headers: a hash of headers to send through with the request.

Prefixes

Methods which return a boolean value will generally be prefixed with check.

Methods which return a single object will generally be prefixed with get.

Methods which return an array will generally be prefixed with list.

Resources

The following resources are supports

Global Default Headers

It's possible to configure global default headers, which will be sent on all requests (unless overridden in the method options), by specifying the headers option in the constructor.

var tentacles = new Tentacles({
  headers: {
    Accept: 'application/vnd.github.moondragon+json'
  },
});

Anonymous Usage

GitHub heavily limits anonymous API usage. If you expect to be using the API for anonymous users, it's highly recommended that you pass in a clientId/clientSecret. This will allow a much higher API limit.

var Tentacles = require('tentacles');
var tentacles = new Tentacles({ clientId: '...', clientSecret: '...' });

tentacles.user.get('suprememoocow')
  .then(function(user) {
    // ...
  });

Some APIs will use your clientId/clientSecret. If you prefer to use a different set of credentials for anonymous usage, use anonymousClientId/anonymousClientSecret instead:

var Tentacles = require('tentacles');
var tentacles = new Tentacles({ anonymousClientId: '...', anonymousClientSecret: '...' });

tentacles.user.get('suprememoocow')
  .then(function(user) {
    // ...
  });

Accessing the Response

Sometimes it's useful to access the response headers. In order to do this, use the spread option. When spread is true, the promise will resolve an array of [body, response]. This can then be spread across the parameters of the promise callback using Q's spread method, like this:

var Tentacles = require('tentacles');
var tentacles = new Tentacles();

tentacles.user.get('suprememoocow', { spread: true })
  .spread(function(user, response) {
    // Access `response.headers`, `response.statusCode` etc
  });

It's also possible to specify this option globally, like so

var Tentacles = require('tentacles');
var tentacles = new Tentacles({ spread: true });

tentacles.user.get('suprememoocow')
  .spread(function(user, response) {
    // Access `response.headers`, `response.statusCode` etc
  });

Extensibility

Under the covers, Tentacles uses request-extensible to allow additional middleware layers to be added to the outgoing (or incoming) GitHub API request. This adds a great deal of extensiblity to the library.

Add extensions through the extensions option on the constructor:

var Tentacles = require('tentacles');
var tentacles = new Tentacles({
  extensions: [
    githubApiStats,       // These are request-extensible extensions
    rateLimiterWarning
  ]
});

Caching GitHub API responses

By using HTTP caching semantics and conditional requests you can speed up your application and reduce rate limiting. We've built an request-http-cache for Tentacles to do exactly this.

You can cache responses from GitHub in-memory, or (better for production) in a Redis instance.

Read more over at request-http-cache.

Here's a simple example setup:

var RequestHttpCache = require('request-http-cache');
var httpRequestCache = new RequestHttpCache({
  max: 1024*1024 // Maximum cache size (1mb) defaults to 512Kb
});

var Tentacles = require('tentacles');
var tentacles = new Tentacles({
  extensions: [
    httpRequestCache.extension
  ]
});

Streaming pagenated results

Prefer using streams for pagenated results? Take a look at Tentacles Streams, which has an identical API to Tentacles, but returns objectstreams of all the pages of results.

Authors

Lovingly build by @suprememoocow and the team at Gitter.

Contributing

Please adhere to the airbnb/javascript style guide for any PRs.

Please add documentation for any methods in the JSDox format. To regenerate the markdown documentation, run npm run-script doc

Where to put your changes

There are many ways to categorise API methods. To avoid confusion, this client matches the documentation structure as it is presented on developer.github.com.

Licence

License
The MIT License (MIT)

Copyright (c) 2015, Troupe Technology Limited

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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