class Elastomer::Middleware::EncodeJson

Request middleware that encodes the body as JSON.

Processes only requests with matching Content-type or those without a type. If a request doesn't have a type but has a body, it sets the Content-type to JSON MIME-type.

Doesn't try to encode bodies that already are in string form.

Constants

CONTENT_TYPE
MIME_TYPE

Public Instance Methods

add_content_type!(env) click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 47
def add_content_type!(env)
  method = env[:method]
  if method == :put || method == :post || has_body?(env)
    env[:request_headers][CONTENT_TYPE] ||= MIME_TYPE
  end
end
call(env) click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 14
def call(env)
  match_content_type(env) do |data|
    env[:body] = encode data
  end
  @app.call env
end
encode(data) click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 21
def encode(data)
  MultiJson.dump data
end
has_body?(env) click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 37
def has_body?(env)
  (body = env[:body]) && !(body.respond_to?(:to_str) && body.empty?)
end
match_content_type(env) { |env| ... } click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 25
def match_content_type(env)
  add_content_type!(env)
  if process_request?(env)
    yield env[:body] unless env[:body].respond_to?(:to_str)
  end
end
process_request?(env) click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 32
def process_request?(env)
  type = request_type(env)
  has_body?(env) && (type.empty? || type == MIME_TYPE)
end
request_type(env) click to toggle source
# File lib/elastomer/middleware/encode_json.rb, line 41
def request_type(env)
  type = env[:request_headers][CONTENT_TYPE].to_s
  type = type.split(";", 2).first if type.index(";")
  type
end