Class: OpenTelemetry::Instrumentation::Excon::Middlewares::TracerMiddleware
- Inherits:
-
Excon::Middleware::Base
- Object
- Excon::Middleware::Base
- OpenTelemetry::Instrumentation::Excon::Middlewares::TracerMiddleware
- Defined in:
- lib/opentelemetry/instrumentation/excon/middlewares/tracer_middleware.rb
Overview
Excon middleware for instrumentation
Constant Summary collapse
- HTTP_METHODS_TO_UPPERCASE =
%w[connect delete get head options patch post put trace].each_with_object({}) do |method, hash| uppercase_method = method.upcase hash[method] = uppercase_method hash[method.to_sym] = uppercase_method hash[uppercase_method] = uppercase_method end.freeze
- HTTP_METHODS_TO_SPAN_NAMES =
HTTP_METHODS_TO_UPPERCASE.values.each_with_object({}) do |uppercase_method, hash| hash[uppercase_method] ||= "HTTP #{uppercase_method}" end.freeze
Class Method Summary collapse
-
.around_default_stack ⇒ Object
Returns a copy of the default stack with the trace middleware injected.
Instance Method Summary collapse
Class Method Details
.around_default_stack ⇒ Object
Returns a copy of the default stack with the trace middleware injected
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# File 'lib/opentelemetry/instrumentation/excon/middlewares/tracer_middleware.rb', line 59 def self.around_default_stack ::Excon.defaults[:middlewares].dup.tap do |default_stack| # If the default stack contains a version of the trace middleware already... existing_trace_middleware = default_stack.find { |m| m <= TracerMiddleware } default_stack.delete(existing_trace_middleware) if existing_trace_middleware # Inject after the ResponseParser middleware response_middleware_index = default_stack.index(::Excon::Middleware::ResponseParser).to_i default_stack.insert(response_middleware_index + 1, self) end end |
Instance Method Details
#error_call(datum) ⇒ Object
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# File 'lib/opentelemetry/instrumentation/excon/middlewares/tracer_middleware.rb', line 53 def error_call(datum) handle_response(datum) @stack.error_call(datum) end |
#request_call(datum) ⇒ Object
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# File 'lib/opentelemetry/instrumentation/excon/middlewares/tracer_middleware.rb', line 24 def request_call(datum) begin unless datum.key?(:otel_span) http_method = HTTP_METHODS_TO_UPPERCASE[datum[:method]] attributes = span_creation_attributes(datum, http_method) tracer.start_span( HTTP_METHODS_TO_SPAN_NAMES[http_method], attributes: attributes, kind: :client ).tap do |span| datum[:otel_span] = span OpenTelemetry::Trace.with_span(span) do OpenTelemetry.propagation.inject(datum[:headers]) end end end rescue StandardError => e OpenTelemetry.logger.debug(e.) end @stack.request_call(datum) end |
#response_call(datum) ⇒ Object
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# File 'lib/opentelemetry/instrumentation/excon/middlewares/tracer_middleware.rb', line 47 def response_call(datum) @stack.response_call(datum).tap do |d| handle_response(d) end end |