Gorilla/mux middleware not being hit - go

Question

I am on go version go1.10.4 linux/amd64
I am registering middleware, but they don't seem to be hit.
package main
import (
"encoding/json"
"fmt"
"github.com/dgrijalva/jwt-go"
"github.com/gorilla/context"
"github.com/mitchellh/mapstructure"
"huru/migrations"
"huru/models"
"huru/models/person"
"huru/routes"
"net/http"
"os"
"github.com/gorilla/mux"
_ "github.com/lib/pq"
log "github.com/sirupsen/logrus"
)
func loggingMiddleware(next http.Handler) http.Handler {
log.Println("logging middleware registered");
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Do stuff here
log.Println("Here is the request URI:",r.RequestURI)
// Call the next handler, which can be another middleware in the chain, or the final handler.
next.ServeHTTP(w, r)
})
}
type Exception struct {
Message string `json:"message"`
}
func authMiddleware(next http.Handler) http.Handler {
log.Println("auth middleware registered");
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
params := r.URL.Query()
fmt.Println("the params are:", params);
token, _ := jwt.Parse(params["token"][0], func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("there was an error")
}
return []byte("secret"), nil
})
claims, ok := token.Claims.(jwt.MapClaims)
if ! (ok && token.Valid) {
json.NewEncoder(w).Encode(Exception{Message: "Invalid authorization token"})
return;
}
var user person.Model
mapstructure.Decode(claims, &user)
context.Set(r, "logged_in_user", user)
next.ServeHTTP(w, r)
})
}
func errorMiddleware(next http.Handler) http.Handler {
log.Println("error handling middleware registered");
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if err := recover(); err != nil {
log.Error("Caught error in defer/recover middleware: ", err)
originalError := err.(struct{ OriginalError error }).OriginalError
if originalError != nil {
log.Error("Original error in defer/recover middleware: ", originalError)
}
statusCode := err.(struct{ StatusCode int }).StatusCode
if statusCode != 0 {
w.WriteHeader(statusCode)
} else {
w.WriteHeader(http.StatusInternalServerError)
}
message := err.(struct{ Message string }).Message
if message == "" {
message = "Unknown error message."
}
json.NewEncoder(w).Encode(struct {
ID string
}{
message,
})
}
}()
next.ServeHTTP(w, r)
})
}
func main() {
routerParent := mux.NewRouter()
routerParent.Use(loggingMiddleware)
routerParent.Use(errorMiddleware)
routerParent.Use(authMiddleware)
router := routerParent.PathPrefix("/api/v1").Subrouter();
router.Use(loggingMiddleware)
router.Use(errorMiddleware)
router.Use(authMiddleware)
// register and login
{
handler := routes.LoginHandler{}
subRouter := router.PathPrefix("/").Subrouter()
handler.Mount(subRouter, struct{}{});
}
{
handler := routes.RegisterHandler{}
subRouter := router.PathPrefix("/").Subrouter()
handler.Mount(subRouter, struct{}{})
}
{
// people
handler := routes.PersonHandler{}
subRouter := router.PathPrefix("/").Subrouter()
subRouter.Use(authMiddleware)
handler.Mount(subRouter, routes.PersonInjection{People: models.PersonInit()})
}
// ...
}
none of these get logged:
log.Println("error handling middleware registered");
log.Println("auth middleware registered");
log.Println("logging middleware registered");
and at runtime none of middleware routes seem to get hit, nothing is logged there. Anyone know why that may be?
Note that I don't expect to need all these:
routerParent := mux.NewRouter()
routerParent.Use(loggingMiddleware)
routerParent.Use(errorMiddleware)
routerParent.Use(authMiddleware)
router := routerParent.PathPrefix("/api/v1").Subrouter();
router.Use(loggingMiddleware)
router.Use(errorMiddleware)
router.Use(authMiddleware)
in reality I probably just want:
routerParent := mux.NewRouter()
router := routerParent.PathPrefix("/api/v1").Subrouter();
router.Use(loggingMiddleware)
router.Use(errorMiddleware)
router.Use(authMiddleware)
but it's just there to prove that something is off. At the end of the main func, I have this to start the server:
host := os.Getenv("huru_api_host")
port := os.Getenv("huru_api_port")
if host == "" {
host = "localhost"
}
if port == "" {
port = "80"
}
log.Info(fmt.Sprintf("Huru API server listening on port %s", port))
path := fmt.Sprintf("%s:%s", host, port)
log.Fatal(http.ListenAndServe(path, routerParent))