Contents

require 'faraday_middleware/response_middleware'

module FaradayMiddleware
  # Public: Parse response bodies as JSON.
  class ParseJson < ResponseMiddleware
    dependency 'json'

    define_parser { |body|
      JSON.parse body unless body.empty?
    }

    # Public: Override the content-type of the response with "application/json"
    # if the response body looks like it might be JSON, i.e. starts with an
    # open bracket.
    #
    # This is to fix responses from certain API providers that insist on serving
    # JSON with wrong MIME-types such as "text/javascript".
    class MimeTypeFix < ResponseMiddleware
      MIME_TYPE = 'application/json'.freeze

      def process_response(env)
        old_type = env[:response_headers][CONTENT_TYPE].to_s
        new_type = MIME_TYPE.dup
        new_type << ';' << old_type.split(';', 2).last if old_type.index(';')
        env[:response_headers][CONTENT_TYPE] = new_type
      end

      BRACKETS = %w- [ { -

      def parse_response?(env)
        super and BRACKETS.include? env[:body][0,1]
      end
    end
  end
end

# deprecated alias
Faraday::Response::ParseJson = FaradayMiddleware::ParseJson

Version data entries

5 entries across 5 versions & 2 rubygems

Version	Path
agiley-faraday_middleware-0.8.3.2	lib/faraday_middleware/response/parse_json.rb
agiley-faraday_middleware-0.8.3.1	lib/faraday_middleware/response/parse_json.rb
faraday_middleware-0.8.4	lib/faraday_middleware/response/parse_json.rb
agiley-faraday_middleware-0.8.3	lib/faraday_middleware/response/parse_json.rb
faraday_middleware-0.8.3	lib/faraday_middleware/response/parse_json.rb