Class: AppsignalExtensions::Middleware

Inherits:
Object
  • Object
show all
Defined in:
lib/appsignal_extensions/middleware.rb

Defined Under Namespace

Classes: Close, NullTransaction, TransactionClosingBody

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Middleware

Creates a new Appsignal middleware handler with the given Rack app as a callee

Parameters:

  • app (#call) —

    the Rack app



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# File 'lib/appsignal_extensions/middleware.rb', line 65

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Array

Calls the application, captures errors, sets up wrappers and so forth

Parameters:

  • env (Hash) —

    the Rack env

Returns:

  • (Array) —

    the Rack response triplet from upstream



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# File 'lib/appsignal_extensions/middleware.rb', line 73

def call(env)
  request = ::Rack::Request.new(env)
  env["action_dispatch.request_id"] ||= SecureRandom.uuid
  if Appsignal.active?
    call_with_appsignal(env, request)
  else
    call_with_null_transaction(env, request)
  end
end