iris/_examples/convert-handlers/real-usecase-raven/wrapping-the-router/main.go

package main

import (
	"errors"
	"fmt"
	"net/http"
	"runtime/debug"

	"github.com/kataras/iris"

	"github.com/getsentry/raven-go"
)

// https://docs.sentry.io/clients/go/integrations/http/
func init() {
	raven.SetDSN("https://<key>:<secret>@sentry.io/<project>")
}

func main() {
	app := iris.New()
	app.Get("/", func(ctx iris.Context) {
		ctx.Writef("Hi")
	})

	// Example for WrapRouter is already here:
	// https://github.com/kataras/iris/blob/master/_examples/routing/custom-wrapper/main.go#L53
	app.WrapRouter(func(w http.ResponseWriter, r *http.Request, irisRouter http.HandlerFunc) {
		// Exactly the same source code:
		// https://github.com/getsentry/raven-go/blob/379f8d0a68ca237cf8893a1cdfd4f574125e2c51/http.go#L70

		defer func() {
			if rval := recover(); rval != nil {
				debug.PrintStack()
				rvalStr := fmt.Sprint(rval)
				packet := raven.NewPacket(rvalStr, raven.NewException(errors.New(rvalStr), raven.NewStacktrace(2, 3, nil)), raven.NewHttp(r))
				raven.Capture(packet, nil)
				w.WriteHeader(http.StatusInternalServerError)
			}
		}()

		irisRouter(w, r)
	})

	app.Run(iris.Addr(":8080"))
}