chi

package
Version: v1.20.1 Latest Latest
Warning

This package is not in the latest version of its module.

Go to latest
Published: Jan 15, 2020 License: BSD-3-Clause Imports: 10 Imported by: 0

Documentation

Overview

Package chi provides tracing functions for tracing the go-chi/chi package (https://github.com/go-chi/chi).

Example
package main

import (
	"net/http"

	"github.com/go-chi/chi"

	chitrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/go-chi/chi"
	"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
)

func handler(w http.ResponseWriter, r *http.Request) {
	w.Write([]byte("Hello World!\n"))
}

func main() {
	// Start the tracer
	tracer.Start()
	defer tracer.Stop()

	// Create a chi Router
	router := chi.NewRouter()

	// Use the tracer middleware with the default service name "chi.router".
	router.Use(chitrace.Middleware())

	// Set up some endpoints.
	router.Get("/", handler)

	// And start gathering request traces
	http.ListenAndServe(":8080", router)
}
Output:

Example (WithServiceName)
package main

import (
	"net/http"

	"github.com/go-chi/chi"

	chitrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/go-chi/chi"
	"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
)

func handler(w http.ResponseWriter, r *http.Request) {
	w.Write([]byte("Hello World!\n"))
}

func main() {
	// Start the tracer
	tracer.Start()
	defer tracer.Stop()

	// Create a chi Router
	router := chi.NewRouter()

	// Use the tracer middleware with your desired service name.
	router.Use(chitrace.Middleware(chitrace.WithServiceName("chi-server")))

	// Set up some endpoints.
	router.Get("/", handler)

	// And start gathering request traces
	http.ListenAndServe(":8080", router)
}
Output:

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func Middleware

func Middleware(opts ...Option) func(next http.Handler) http.Handler

Middleware returns middleware that will trace incoming requests.

Types

type Option

type Option func(*config)

Option represents an option that can be passed to NewRouter.

func WithAnalytics

func WithAnalytics(on bool) Option

WithAnalytics enables Trace Analytics for all started spans.

func WithAnalyticsRate

func WithAnalyticsRate(rate float64) Option

WithAnalyticsRate sets the sampling rate for Trace Analytics events correlated to started spans.

func WithServiceName

func WithServiceName(name string) Option

WithServiceName sets the given service name for the router.

func WithSpanOptions

func WithSpanOptions(opts ...ddtrace.StartSpanOption) Option

WithSpanOptions applies the given set of options to the spans started by the router.

Source Files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL