Class: RestCore::JsonResponse

Inherits:
Object
  • Object
show all
Includes:
Middleware
Defined in:
lib/rest-core/middleware/json_response.rb

Defined Under Namespace

Classes: ParseError

Constant Summary collapse

JSON_RESPONSE_HEADER = 
{'Accept' => 'application/json'}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.members ⇒ Object 



6
 
# File 'lib/rest-core/middleware/json_response.rb', line 6

def self.members; [:json_response]; end

Instance Method Details

#call(env, &k) ⇒ Object 



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# File 'lib/rest-core/middleware/json_response.rb', line 20

def call env, &k
  return app.call(env, &k) if env[DRY]
  return app.call(env, &k) unless json_response(env)

  app.call(env.merge(REQUEST_HEADERS =>
    JSON_RESPONSE_HEADER.merge(env[REQUEST_HEADERS]||{}))){ |response|
      yield(process(response))
    }
end

#process(response) ⇒ Object 



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# File 'lib/rest-core/middleware/json_response.rb', line 30

def process response
  body = response[RESPONSE_BODY]
  json = if body.kind_of?(String)
           Json.normalize(body)
         else
           # Yajl supports streaming, so let's pass it directly to make
           # it possible to do streaming here. Although indeed we should
           # use RESPONSE_SOCKET in this case, but doing that could
           # introduce some incompatibility which I don't want to take
           # care of for now.
           body
         end

  response.merge(RESPONSE_BODY => Json.decode(json))
rescue Json.const_get(:ParseError) => error
  fail(response, ParseError.new(error, body))
end