URL Params about httprouter

[julienschmidt]

Hi Roberto,

I think you are confusing query parameters (user and group in your example) with path (generate) parameters. An URL pattern with path patterns could for example look like this: /generate/:user/:group, which would for example match requests with the path /generate/12/mygroup.

You are looking for URL Query parameters, though. You can access them in Go like this:

package main

import (
    "fmt"
    "github.com/julienschmidt/httprouter"
    "net/http"
    "log"
)

func Index(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
    // something
}

func Generate(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
    q := r.URL.Query()
    user := q.Get("user")
    group := q.Get("group")
    fmt.Fprintf(w, "user: %s; group: %s", user, group)
}

func main() {
    router := httprouter.New()
    router.GET("/", Index)
    router.GET("/generate", Generate)

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