I am having issues getting the Gorilla Mux library for Go to work. From the documentation I have read and all the debugging I've done, I cannot seem to figure out what the problem is. Here's what I've got for routing:
Folder structure:
project_root
|-- main.go
|-- routes
|-- routes.go
|-- user.go
main.go:
package main
import (
"fmt"
"net/http"
"./routes"
)
func main() {
r := routes.CreateRoutes(http.Dir("./content"))
http.Handle("/", r)
err := http.ListenAndServe(fmt.Sprintf("%s:%d", "localhost", 8000), nil)
if err != nil {
fmt.Println("Error: ", err)
}
}
routes/routes.go
package routes
import (
"net/http"
"github.com/gorilla/mux"
)
func CreateRoutes(staticDir http.FileSystem) *mux.Router {
r := mux.NewRouter()
// Serve static pages (i.e. web app)
r.PathPrefix("/").Handler(http.FileServer(staticDir))
// Serve User Pages
createUserRoutes(r)
return r
}
routes/user.go
package routes
import (
"fmt"
"net/http"
"github.com/gorilla/mux"
)
func createUserRoutes(r *mux.Router) {
user := r.PathPrefix("/user/").Subrouter()
// Create a new user
user.Path("/new").Methods("PUT").HandlerFunc(newUserHandler)
// Remove a user
user.Path("/remove/{username:[a-z][a-z0-9]+}").Methods("DELETE").HandlerFunc(removeUserHandler)
// Update a user
user.Path("update/{username:[a-z][a-z0-9]+").Methods("POST").HandlerFunc(updateUserHandler)
// Get a user (Get user information)
user.Path("/{username:[a-z][a-z0-9]+").Methods("GET").HandlerFunc(getUserHandler)
}
func newUserHandler(resp http.ResponseWriter, req *http.Request) {
// Do something that might cause an error
if err != nil {
fmt.Println(err)
resp.WriteHeader(409)
resp.Write([]byte(err.Error()))
} else {
fmt.Println("Created new user")
resp.WriteHeader(201)
resp.Write([]byte("Created new user"))
}
}
func removeUserHandler(resp http.ResponseWriter, req *http.Request) {
}
func updateUserHandler(resp http.ResponseWriter, req *http.Request) {
}
func getUserHandler(resp http.ResponseWriter, req *http.Request) {
}
Whenever I make a request to root path of the server (i.e. the path that serves the static content), the server responds as intended, with the main page. However, any other calls result in a 404 response (I test requests using cURL). For example, a malformed request to http://localhost:8000/user/new should return a 409, but instead returns a 404. Same if I expect a 201 response.
Everything looks right and I've triple checked it, but I cannot figure out what the issue here is.