tracing

func GetSpanFromGinContex ¶

func GetSpanFromGinContex(funcName string, c *gin.Context) (opentracing.Span, context.Context)

func GetTraceIdFromSpanContext ¶

func GetTraceIdFromSpanContext(spanCtx opentracing.SpanContext) string

func InitDevelopment ¶

func InitDevelopment(tracingAgentHostPort []byte)

InitDevelopment - DEPRECATED (uses deprecated jaeger client func) init a production tracer environment example: Create the default tracer and schedule its closing when main returns.

   func main() {
 tracing.InitDevelopment() # defaults to "localhost:6831" for tracing agent
	tracer, closer, _ := tracing.Config.New("passport-gigya-user-access") // the service name is the param to New()
	defer closer.Close()
	opentracing.SetGlobalTracer(tracer)

func InitMacDocker ¶

func InitMacDocker(tracingAgentHostPort []byte)

InitMacDocker - DEPRECATED (uses deprecated jaeger client func) init a production tracer environment example: Create the default tracer and schedule its closing when main returns.

   func main() {
 tracing.InitMacDocker() # defaults to "host.docker.internal:6831 for tracing agent
	tracer, closer, _ := tracing.Config.New("passport-gigya-user-access") // the service name is the param to New()
	defer closer.Close()
	opentracing.SetGlobalTracer(tracer)

func InitProduction ¶

func InitProduction(sampleProbability float64, tracingAgentHostPort []byte)

InitProduction - DEPRECATED (uses deprecated jaeger client func) init a production tracer environment example: Create the default tracer and schedule its closing when main returns.

   func main() {
	tracing.InitProduction("jaegeragent.svc.cluster.local:6831")
	tracer, closer, _ := tracing.Config.New("passport-gigya-user-access") // the service name is the param to New()
	defer closer.Close()
	opentracing.SetGlobalTracer(tracer)

func InitTracing ¶

func InitTracing(serviceName string, tracingAgentHostPort string, opt ...Option) (
	tracer opentracing.Tracer,
	reporter jaeger.Reporter,
	closer io.Closer,
	err error)

InitTracing - init opentracing with options (WithSampleProbability, WithEnableInfoLog) defaults: constant sampling, no info logging

func InjectTraceID ¶

func InjectTraceID(ctx opentracing.SpanContext, header http.Header) error

InjectTraceID injects the span ID into the provided HTTP header object, so that the current span will be propogated downstream to the server responding to an HTTP request. Specifying the span ID in this way will allow the tracing system to connect spans between servers.

 Usage:
         // resty example
	    r := resty.R()
	    injectTraceID(span, r.Header)
	    resp, err := r.Get(fmt.Sprintf("http://localhost:8000/users/%s", bosePersonID))

         // galapagos_clients example
         c := galapagos_clients.GetHTTPClient()
         req, err := http.NewRequest("GET", fmt.Sprintf("http://localhost:8000/users/%s", bosePersonID))
         injectTraceID(span, req.Header)
         c.Do(req)

func StartDBSpanWithParent ¶

func StartDBSpanWithParent(parent opentracing.SpanContext, operationName, dbInstance, dbType, dbStatement string) opentracing.Span

StartDBSpanWithParent - start a DB operation span

func StartSpan ¶

func StartSpan(operationName, method, path string) opentracing.Span

StartSpan will start a new span with no parent span.

func StartSpanWithHeader ¶

func StartSpanWithHeader(header *http.Header, operationName, method, path string) opentracing.Span

StartSpanWithHeader will look in the headers to look for a parent span before starting the new span. example:

func handleGet(c *gin.Context) {
   span := StartSpanWithHeader(&c.Request.Header, "api-request", method, path)
   defer span.Finish()
   c.Set("tracing-context", span) // add the span to the context so it can be used for the duration of the request.
   bosePersonID := c.Param("bosePersonID")
   span.SetTag("bosePersonID", bosePersonID)

func StartSpanWithParent ¶

func StartSpanWithParent(parent opentracing.SpanContext, operationName, method, path string) opentracing.Span

StartSpanWithParent will start a new span with a parent span. example:

span:= StartSpanWithParent(c.Get("tracing-context"),