go_tooling/httprouter/httprouter.go

package main

import (
	"fmt"
	"log"
	"net/http"

	"github.com/julienschmidt/httprouter"
	"github.com/sanity-io/litter"
)

func Index(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
	fmt.Fprint(w, "Welcome!\n")
}

func Hello(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
	c := httprouter.ParamsFromContext(r.Context()) // nil ?
	fmt.Fprintln(w, litter.Sdump(c))
	fmt.Fprintf(w, "hello, %s!\n", ps.ByName("name"))
}

func main() {
	router := httprouter.New()
	router.GET("/", Index)
	router.GET("/hello/:name", Hello)

	log.Fatal(http.ListenAndServe(":8080", router))
}