acts_as_api

acts_as_api makes creating XML/JSON responses in Rails 3 easy and fun.

It provides a simple interface to determine the representation of your model data, that should be rendered in your API responses.

In addition to Rails it theoretically can be used with any ruby app and any database (ActiveRecord and Mongoid are supported out of the box) as it only has few dependencies.

The lib is very fast in generating your responses and battle tested in production with platforms like Diaspora or flinc.

Introduction

acts_as_api enriches the models and controllers of your app in a Rails-like way so you can easily determine how your API responses should look like:

class User < ActiveRecord::Base

  acts_as_api

  api_accessible :public do |template|
    template.add :first_name
    template.add :age
  end
  # will render json: { "user": { "first_name": "John", "age":  26 } }

  api_accessible :private, :extend => :public do |template|
    template.add :last_name
    template.add :email
  end
  # will render json: { "user": { "first_name": "John", "last_name": "Doe", "age":  26, "email": "john@example.org" } }

end

Getting started

A nice introduction about acts_as_api with examples can be found here:

http://fabrik42.github.com/acts_as_api

See the Wiki for a lot of usage examples and features:

https://github.com/fabrik42/acts_as_api/wiki

There are a lot of how-tos like:

Features:

DRY templates for your api responses
Ships with support for ActiveRecord and Mongoid
Support for Rails 3 Responders
Plays very well together with client libs like Backbone.js, RestKit (iOS) or gson (Android).
Easy but very flexible syntax for defining the templates
XML, JSON and JSON-P support out of the box, easy to extend
Minimal dependecies (you can also use it without Rails)
Supports multiple api rendering templates per model. This is especially useful for API versioning or for example for private vs. public access points to a user’s profile.

Requirements:

ActiveModel (>= 3.0.0)
ActiveSupport (>= 3.0.0)
Rack (>= 1.1.0)

Travis CI build status

Specs run with 1.9.3: http://travis-ci.org/#!/fabrik42/acts_as_api

Tested with:

It has been used in production with the following ruby versions.

They are not integrated in Travis, because optional dependencies (like Mongoid 3) don't support these Ruby versions.

MRI 1.9.3-p125
MRI 1.9.2-p290
MRI 1.8.7-p358
But it just should work fine with other versions too... :)

Downwards Compatibility

Note that upgrading to 0.3.0 will break code that worked with previous versions due to a complete overhaul of the lib. For a legacy version of this readme file look here: https://github.com/fabrik42/acts_as_api/wiki/legacy-acts_as_api-0.2-readme

LICENSE:

(The MIT License)

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.

nanocity/acts_as_api