Getting the URL parameter in Go issue - go

Question

I have a URL that looks something like this: http://localhost/templates/verify?key=ijio
My router looks like this:
import (
"github.com/gorilla/mux"
"github.com/justinas/alice"
)
ctx := &model.AppContext{db, cfg} // passes in database and config
verifyUser := controller.Verify(ctx)
mx.Handle("/verify", commonHandlers.ThenFunc(verifyUser)).Methods("GET").Name("verify")
I want to get the key parameter out of the URL, so I use the following code:
func Verify(c *model.AppContext) http.HandlerFunc {
fn := func(w http.ResponseWriter, r *http.Request) {
key := r.URL.Query().Get("key") // gets the hash value that was placed in the URL
log.Println(key) // empty key
log.Println(r.URL.Query()) // returns map[]
// code that does something with key and sends back JSON response
}
}
I used AngularJS to get the JSON data:
app.controller("verifyControl", ['$scope', '$http', function($scope, $http) {
$scope.message = "";
$http({
method: 'GET',
url: "/verify"
}).success(function(data) {
$scope.message = data.msg; // JSON response
});
}]);
However, I end up with an empty key variable when I try to print it out. I recently used nginx to take out my .html extension if that's a possible cause of this problem. How do I fix this?

Answer 1

The solution to my question involves inspecting the request URL link by
log.Print(r.URL) // This returns "/verify"
However, that's not exactly what you want. Instead, you want the full URL. You can do the following to get the full URL and extract the parameter from it:
urlStr := r.Referer() // gets the full URL as a string
urlFull, err := url.Parse(urlStr) // returns a *URL object
if err != nil {
log.Fatal(err)
return
}
key := urlFull.Query().Get("key") // now we get the key parameter from the URL
log.Println("Key: " + key) // now you'll get a non empty string