Class: MicroscopeTracer::FaradayMiddleware

Inherits:
Faraday::Middleware
  • Object
show all
Defined in:
lib/microscope_tracer/faraday_middleware.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, service_name) ⇒ FaradayMiddleware

Returns a new instance of FaradayMiddleware.



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# File 'lib/microscope_tracer/faraday_middleware.rb', line 7

def initialize(app,service_name)
  @trace_logger = TraceLogger.new(service_name)
  super(app)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/microscope_tracer/faraday_middleware.rb', line 12

def call(env)
  span = Span.lookup_for_this_request
  child_span_id = Span.generate_unique_id

  Headers.add_client_request_headers(env.request_headers,span,child_span_id)

  started_at = Time.now

  @trace_logger.log_client_start(span,child_span_id)


  @app.call(env).on_complete do |response_env|
    duration = Time.now - started_at
    @trace_logger.log_client_end(span,child_span_id,duration) 
  end
end