Module: Net::Http::Instrumentation
- Defined in:
- lib/net/http/instrumentation.rb,
lib/net/http/instrumentation/version.rb
Constant Summary collapse
- VERSION =
"0.2.0"
Class Attribute Summary collapse
-
.ignore_request ⇒ Object
Returns the value of attribute ignore_request.
-
.status_codes ⇒ Object
Returns the value of attribute status_codes.
-
.tracer ⇒ Object
Returns the value of attribute tracer.
Class Method Summary collapse
- .instrument(tracer: OpenTracing.global_tracer, ignore_request: nil, status_code_errors: [ ::Net::HTTPServerError ]) ⇒ Object
- .patch_request ⇒ Object
- .remove ⇒ Object
Class Attribute Details
.ignore_request ⇒ Object
Returns the value of attribute ignore_request.
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# File 'lib/net/http/instrumentation.rb', line 10 def ignore_request @ignore_request end |
.status_codes ⇒ Object
Returns the value of attribute status_codes.
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# File 'lib/net/http/instrumentation.rb', line 10 def status_codes @status_codes end |
.tracer ⇒ Object
Returns the value of attribute tracer.
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# File 'lib/net/http/instrumentation.rb', line 10 def tracer @tracer end |
Class Method Details
.instrument(tracer: OpenTracing.global_tracer, ignore_request: nil, status_code_errors: [ ::Net::HTTPServerError ]) ⇒ Object
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# File 'lib/net/http/instrumentation.rb', line 12 def instrument(tracer: OpenTracing.global_tracer, ignore_request: nil, status_code_errors: [ ::Net::HTTPServerError ]) @ignore_request = ignore_request @tracer = tracer @status_codes = status_code_errors patch_request if !@instrumented @instrumented = true end |
.patch_request ⇒ Object
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# File 'lib/net/http/instrumentation.rb', line 35 def patch_request ::Net::HTTP.module_eval do alias_method :request_original, :request def request(req, body = nil, &block) res = '' if ::Net::Http::Instrumentation.ignore_request.respond_to?(:call) && ::Net::Http::Instrumentation.ignore_request.call res = request_original(req, body, &block) else if req.uri url = req.uri.to_s else if @address uri = URI(@address) if uri.relative? url = @address + req.path else url = (uri + req.path).to_s end else url = req.path end end = { "component" => "Net::HTTP", "span.kind" => "client", "http.method" => req.method, "http.url" => url, "peer.host" => @address, "peer.port" => @port, } ::Net::Http::Instrumentation.tracer.start_active_span("net_http.request", tags: ) do |scope| # inject the trace so it's available to the remote service OpenTracing.inject(scope.span.context, OpenTracing::FORMAT_RACK, req) # call the original request method res = request_original(req, body, &block) # set response code and error if applicable scope.span.set_tag("http.status_code", res.code) scope.span.set_tag("error", true) if ::Net::Http::Instrumentation.status_codes.any? { |e| res.is_a? e } end end res end end end |
.remove ⇒ Object
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# File 'lib/net/http/instrumentation.rb', line 23 def remove return if !@instrumented ::Net::HTTP.module_eval do remove_method :request alias_method :request, :request_original remove_method :request_original end @instrumented = false end |