https://github.com/golang-samples/goweb/blob/master/mapfunc/main.go がそのままだと動かなかったので、とりあえず動く感じにしてみた

main.go

package main

import (
    "fmt"
	"github.com/stretchr/goweb"
	"github.com/stretchr/goweb/context"
	"net/http"
)

func main() {
	goweb.Map("/", func(c context.Context) error {
		return goweb.Respond.With(c, 200, []byte("Hello, World!"))
	})

	goweb.Map("/{name}/animals/{animal}", func(c context.Context) error {
		name := c.PathParams().Get("name")
		animal := c.PathParams().Get("animal")
		return goweb.Respond.With(c, 200, []byte(fmt.Sprintf("Hey %s, your favorite animal is a %s", name, animal)))
	})

	http.ListenAndServe(":8080", goweb.DefaultHttpHandler())
}