Class: Rack::ParsePostedJSON

Inherits:
Object
  • Object
show all
Defined in:
lib/rack-parse-posted-json.rb

Constant Summary collapse

METHODS_WITH_BODY = 
['POST', 'PUT']

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ ParsePostedJSON

Returns a new instance of ParsePostedJSON.



5
6
7
 
# File 'lib/rack-parse-posted-json.rb', line 5

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/rack-parse-posted-json.rb', line 9

def call(env)
  begin
    if METHODS_WITH_BODY.include?(env['REQUEST_METHOD'])
      data = env['rack.input'].read
      data.force_encoding('utf-8')
      env['json'] = JSON.parse(data)
    end
  rescue JSON::ParserError => error
    body = {message: error.message}.to_json

    headers = {
      'Content-Type' => 'application/json',
      'Content-Length' => body.bytesize.to_s
    }

    return [400, headers, [body]]
  end

  @app.call(env)
end