Class: PlainApm::Extensions::Context::Rack

Inherits:
Object
  • Object
show all
Defined in:
lib/plain_apm/extensions/context/rack.rb,
lib/plain_apm/extensions/context/middleware.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Rack

Returns a new instance of Rack.



15
16
17
 
# File 'lib/plain_apm/extensions/context/rack.rb', line 15

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/plain_apm/extensions/context/rack.rb', line 19

def call(env)
  Context.trace_id = trace_id(env)

  status, headers, body = @app.call(env)

  body = if defined?(::Rack::BodyProxy)
    ::Rack::BodyProxy.new(body) do
      Context.clear!
    end
  else
    body
  end

  processed = true

  [status, headers, body]
ensure
  Context.clear! if !processed
end