class OpenTelemetry::Instrumentation::Sinatra::Middlewares::TracerMiddleware
Middleware to trace Sinatra
requests
Public Class Methods
new(app)
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# File lib/opentelemetry/instrumentation/sinatra/middlewares/tracer_middleware.rb, line 13 def initialize(app) @app = app end
Public Instance Methods
call(env)
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# File lib/opentelemetry/instrumentation/sinatra/middlewares/tracer_middleware.rb, line 17 def call(env) extracted_context = OpenTelemetry.propagation.extract( env, getter: OpenTelemetry::Context::Propagation.rack_env_getter ) OpenTelemetry::Context.with_current(extracted_context) do tracer.in_span( env['PATH_INFO'], attributes: { 'http.method' => env['REQUEST_METHOD'], 'http.url' => env['PATH_INFO'] }, kind: :server ) do |span| @app.call(env).tap { |resp| trace_response(span, env, resp) } end end end
Private Instance Methods
trace_response(span, env, resp)
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# File lib/opentelemetry/instrumentation/sinatra/middlewares/tracer_middleware.rb, line 40 def trace_response(span, env, resp) status, _headers, _response_body = resp span.set_attribute('http.status_code', status) span.set_attribute('http.route', env['sinatra.route'].split.last) if env['sinatra.route'] span.name = env['sinatra.route'] if env['sinatra.route'] span.status = OpenTelemetry::Trace::Status.error unless (100..399).include?(status.to_i) end
tracer()
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# File lib/opentelemetry/instrumentation/sinatra/middlewares/tracer_middleware.rb, line 36 def tracer OpenTelemetry::Instrumentation::Sinatra::Instrumentation.instance.tracer end