Class: PRX::Middleware::Json

Inherits:
Faraday::Middleware
  • Object
show all
Defined in:
lib/prx/middleware/json.rb

Constant Summary collapse

CONTENT_TYPE = 
'Content-Type'.freeze

Class Attribute Summary collapse

Instance Method Summary collapse

Class Attribute Details

.mime_type ⇒ Object

Returns the value of attribute mime_type.



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# File 'lib/prx/middleware/json.rb', line 19

def mime_type
  @mime_type
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/prx/middleware/json.rb', line 28

def call(env)
  match_content_type(env) do |data|
    env.body = encode(data)
  end
  @app.call env
end

#encode(data) ⇒ Object 



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# File 'lib/prx/middleware/json.rb', line 35

def encode(data)
  ::JSON.dump(data)
end

#has_body?(env) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/prx/middleware/json.rb', line 57

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

#match_content_type(env) ⇒ Object 



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# File 'lib/prx/middleware/json.rb', line 39

def match_content_type(env)
  if process_request?(env)
    env.request_headers[CONTENT_TYPE] ||= self.class.mime_type
    yield(env.body) unless env.body.respond_to?(:to_str)
  end
end

#process_request?(env) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/prx/middleware/json.rb', line 46

def process_request?(env)
  type = request_type(env)
  has_body?(env) and (type.empty? or type == self.class.mime_type)
end

#request_type(env) ⇒ Object 



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# File 'lib/prx/middleware/json.rb', line 51

def request_type(env)
  type = env.request_headers[CONTENT_TYPE].to_s
  type = type.split(';', 2).first if type.index(';')
  type
end