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// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package main
import (
"fmt"
"net/http"
"os"
"github.com/gorilla/mux"
"github.com/newrelic/go-agent/v3/integrations/nrgorilla"
newrelic "github.com/newrelic/go-agent/v3/newrelic"
)
func makeHandler(text string) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(text))
})
}
func main() {
app, err := newrelic.NewApplication(
newrelic.ConfigAppName("Gorilla App"),
newrelic.ConfigLicense(os.Getenv("NEW_RELIC_LICENSE_KEY")),
newrelic.ConfigDebugLogger(os.Stdout),
)
if nil != err {
fmt.Println(err)
os.Exit(1)
}
r := mux.NewRouter()
r.Use(nrgorilla.Middleware(app))
r.Handle("/", makeHandler("index"))
r.Handle("/alpha", makeHandler("alpha"))
users := r.PathPrefix("/users").Subrouter()
users.Handle("/add", makeHandler("adding user"))
users.Handle("/delete", makeHandler("deleting user"))
// The route name will be used as the transaction name if one is set.
r.Handle("/named", makeHandler("named route")).Name("special-name-route")
// The NotFoundHandler and MethodNotAllowedHandler must be instrumented
// separately.
_, r.NotFoundHandler = newrelic.WrapHandle(app, "NotFoundHandler", makeHandler("not found"))
_, r.MethodNotAllowedHandler = newrelic.WrapHandle(app, "MethodNotAllowedHandler", makeHandler("method not allowed"))
http.ListenAndServe(":8000", r)
}
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