middleware

Documentation

Index

• Variables
• func ApmTraceResponseHeaders(next http.Handler) http.Handler
• func ConstructContextCancellationLoggerMiddleware(description string) func(http.Handler) http.Handler
• func PanicRecoverer(next http.Handler) http.Handler
• func RestoreOrCreateTraceContextWithoutAPM(r *http.Request) apm.TraceContext
• func UseElasticApmTraceContext(r *http.Request) apm.TraceContext

Variables

var TraceContextFetcherForResponseHeaders = RestoreOrCreateTraceContextWithoutAPM

Functions

func ApmTraceResponseHeaders

func ApmTraceResponseHeaders(next http.Handler) http.Handler

func ConstructContextCancellationLoggerMiddleware

func ConstructContextCancellationLoggerMiddleware(description string) func(http.Handler) http.Handler

func PanicRecoverer

func PanicRecoverer(next http.Handler) http.Handler

func RestoreOrCreateTraceContextWithoutAPM

func RestoreOrCreateTraceContextWithoutAPM(r *http.Request) apm.TraceContext

RestoreOrCreateTraceContextWithoutAPM is designed as a fallback to enable trace propagation even if Elastic APM is not configured or disabled. It uses some Elastic apm go agent functions for compatibility but does not require the middleware to be active.

func UseElasticApmTraceContext

func UseElasticApmTraceContext(r *http.Request) apm.TraceContext

UseElasticApmTraceContext extracts the apm.TraceContext from the apm.Transaction stored in the Context. The transaction is contained in the context if Elastic APM is enabled and the apmhttp handler has started the transaction. See https://pkg.go.dev/go.elastic.co/apm/module/apmhttp/v2@v2.1.0#StartTransactionWithBody