Class: Routemaster::Middleware::Metrics

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

Constant Summary collapse

INTERACTION_KEY = 
'api_client'.freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ Metrics

Returns a new instance of Metrics.



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# File 'lib/routemaster/middleware/metrics.rb', line 6

def initialize(app, options = {})
  @app    = app
  @client = options[:client]
  @source_peer = options[:source_peer]
end

Instance Method Details

#call(request_env) ⇒ Object 



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# File 'lib/routemaster/middleware/metrics.rb', line 12

def call(request_env)
  return @app.call(request_env) unless can_log?

  increment_req_count(request_tags(request_env))

  record_latency(request_tags(request_env)) do
    begin
      @app.call(request_env).on_complete do |response_env|
        increment_response_count(response_tags(response_env))
      end
    rescue Routemaster::Errors::BaseError => e
      increment_response_count(response_tags(e.env))
      raise e
    end
  end
end