Class: Saddle::Middleware::Response::ParseJson

Inherits:
Faraday::Middleware
  • Object
show all
Defined in:
lib/saddle/middleware/response/parse_json.rb

Overview

Public: Parse response bodies as JSON.

Constant Summary collapse

CONTENT_TYPE = 
'Content-Type'.freeze
MIME_TYPE = 
'application/json'.freeze

Instance Method Summary collapse

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/saddle/middleware/response/parse_json.rb', line 17

def call(env)
  if parse_response?(env)
    # Make sure we're working with a valid body that's not a String
    if env.body and !env.body.respond_to?(:to_str)
      env[:request_headers][CONTENT_TYPE] ||= MIME_TYPE
      env.body = ::JSON.dump env.body
    end
  end
  @app.call env
end

#has_body?(env) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/saddle/middleware/response/parse_json.rb', line 32

def has_body?(env)
  body = env[:body] and !(body.respond_to?(:to_str) and body.empty?)
end

#parse_response?(env) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/saddle/middleware/response/parse_json.rb', line 28

def parse_response?(env)
  has_body?(env) and (response_type(env) == MIME_TYPE)
end

#response_type(env) ⇒ Object 



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# File 'lib/saddle/middleware/response/parse_json.rb', line 36

def response_type(env)
  return nil unless env[:response_headers]
  type = env[:response_headers][CONTENT_TYPE].to_s
  type = type.split(';', 2).first if type.index(';')
  type
end