You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: main.go
    path of file: ./repos/iris/_examples/routing/custom-wrapper
    
    the code of the file until where you have to start completion: package main

import (
	"net/http"
	"strings"

	"github.com/kataras/iris/v12"
)

// In this exa
    
func main() {
	app := newApp()

	// http://localhost:8080
	// http://localhost:8080/index.html
	// http://localhost:8080/app.js
	// http://localhost:8080/css/main.css
	// http://localhost:8080/profile/anyusername
	// http://localhost:8080/other/random
	app.Listen(":8080")

	// Note: In this example we just saw one use case,
	// you may want to .WrapRouter or .Downgrade in order to bypass the iris' default router, i.e:
	// you can use that method to setup custom proxies too.
}