[WIP] Try to connect spans into traces

Author: Muriel Picone Farías

instrumentation/grape/lib/opentelemetry/instrumentation/grape/handler.rb

@@ -29,10 +29,6 @@ def subscribe
           private
 
           def endpoint_run_start(name, start, finish, id, payload)
-            puts 'TEST RUN START'
-          end
-
-          def endpoint_run(name, start, finish, id, payload)
             # TODO: check span.name and span.type, and set service.name
             env = payload.fetch(:env)
             # TODO: see if we need to use symbol_key_getter instead
@@ -41,13 +37,16 @@ def endpoint_run(name, start, finish, id, payload)
               env,
               getter: OpenTelemetry::Common::Propagation.rack_env_getter
             )
-            OpenTelemetry::Context.with_current(extracted_context) do
-              tracer.in_span(name, attributes: build_run_attributes(payload), kind: :server) {}
-            end
+            tracer.start_span(name, with_parent: extracted_context, attributes: build_run_attributes(payload), kind: :server)
+          end
+
+          def endpoint_run(name, start, finish, id, payload)
+            # This is not working because we are not getting the span started in endpoint_run_start
+            span = OpenTelemetry::Trace.current_span
+            span.finish
           end
 
           def endpoint_render_start(name, start, finish, id, payload)
-            puts 'TEST RENDER START'
           end
 
           def endpoint_render(name, start, finish, id, payload)