httpmetrics

Documentation

Index

• Constants
• Variables
• func Handler(name string, handler http.Handler) http.Handler
• func HandlerFunc(name string, f func(http.ResponseWriter, *http.Request)) http.HandlerFunc
• func ServeMetrics()
• func SetBucketSuffixes(bs map[string]string)
• func SetBuckets(b map[string]string)
• func SetupTracer(ctx context.Context) func()
• func WrapTransport(t http.RoundTripper) http.RoundTripper

Constants

const CeTypeHeader string = "ce-type"

Variables

var Transport = WrapTransport(http.DefaultTransport)

Transport is an http.RoundTripper that records metrics for each request.

Functions

func Handler

func Handler(name string, handler http.Handler) http.Handler

Handler wraps a given http handler in standard metrics handlers.

func HandlerFunc

func HandlerFunc(name string, f func(http.ResponseWriter, *http.Request)) http.HandlerFunc

Handler wraps a given http handler func in standard metrics handlers.

func ServeMetrics

func ServeMetrics()

ServeMetrics serves the metrics endpoint if the METRICS_PORT env var is set.

func SetBucketSuffixes

func SetBucketSuffixes(bs map[string]string)

func SetBuckets

func SetBuckets(b map[string]string)

func SetupTracer

func SetupTracer(ctx context.Context) func()

Fractions >= 1 will always sample. Fractions < 0 are treated as zero. To respect the parent trace's `SampledFlag`, the `TraceIDRatioBased` sampler should be used as a delegate of a `Parent` sampler.

Expected usage:

defer metrics.SetupTracer(ctx)()

func WrapTransport

func WrapTransport(t http.RoundTripper) http.RoundTripper

WrapTransport wraps an http.RoundTripper with instrumentation.