JSON API Conformant

When building an API in JSON it is important to follow conventions for the so that your system clients know how to send a request for the available resources to be fetched or modified and how your system will respond to those requests.

JSON API Conformant provides a narrow interface for validating JSON objects against a JSON API conforming JSON API schema and provides a custom RSpec matcher for use in your tests.

Important: JSON API is a work in progress. The base schema is not a perfect document. The fact that a JSON document validates against this schema, it does not necessarily mean it is a valid JSON API document. The schema is provided by JSON API for a base level sanity check.

Installation

Add this line to your application's Gemfile:

gem 'json_api_conformant'

And then execute:

$ bundle

Or install it yourself as:

$ gem install json_api_conformant

Usage

Validate if your JSON object is JSON API conformant.

valid_schema   = {"posts" => [{"id" => "1"}]}
invalid_schema = {"comments" => "Nice gem!"}

JSON::API::Conformant.valid?(valid_schema)        # => true
JSON::API::Conformant.valid?(invalid_schema)      # => false

Get errors when your JSON object is JSON API not conformant.

valid_schema   = {"posts" => [{"id" => "1"}]}
invalid_schema = {"comments" => "Nice gem!"}

JSON::API::Conformant.validate(valid_schema)      # => []
JSON::API::Conformant.validate(invalid_schema)    # => ["The property '#/comments' of type String did not match the..."]

JSON API Conformant wraps json-schema, so other options that validator accepts will work here too.

schema = {"posts" => [{"id" => "1"}]}

JSON::API::Conformant.valid?(valid_schema, insert_defaults: true)
JSON::API::Conformant.validate(valid_schema, errors_as_objects: true)

RSpec Matcher

Only tested with RSpec 3.

It is pretty straighword to use.

it "validates that's JSON API conformant" do
  data = {"posts" => [{"id" => "1"}]}
  expect(data).to be_json_api_conformant
end

Contributing

1. Fork it ( https://github.com/[my-github-username]/json_api_conformant/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Run the test suite (rake)
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create a new Pull Request

License

See LICENSE for details.