authentication-go-preact/routes/routes.go

package routes

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

	"github.com/andreanidouglas/auth/model"
)

type Method string

const (
	GET  Method = "GET"
	POST Method = "POST"
)

type Route struct {
	Path           string
	Handler        http.HandlerFunc
	Authentication bool
	Method         Method
}

type Routes struct {
	Pool   model.Db
	logger *log.Logger
	Routes []Route
}

func New(log *log.Logger, db model.Db) Routes {

	return Routes{
		Pool:   db,
		logger: log,
		Routes: make([]Route, 0, 5),
	}

}

func (r *Routes) RegisterRoute(path string, method Method, authenticated bool, handler func(http.ResponseWriter, *http.Request)) {

	if authenticated {
		handler = AuthMiddleware(handler)
	}

	switch method {
	case GET:
		{
			handler = r.Get(handler)
		}
	case POST:
		{
			handler = r.Post(handler)
		}
	}

	r.Routes = append(r.Routes, Route{
		Path:           path,
		Authentication: authenticated,
		Method:         method,
		Handler:        handler,
	})
}

func (self *Routes) Post(next http.HandlerFunc) func(http.ResponseWriter, *http.Request) {

	return func(w http.ResponseWriter, r *http.Request) {

		if r.Method == "POST" {
			self.logger.Printf("[%s: %s]: 200 [POST]", r.RemoteAddr, r.RequestURI)
			next.ServeHTTP(w, r)
		} else {
			self.logger.Printf("[%s: %s]: 405 [Invalid method]", r.RemoteAddr, r.RequestURI)
			w.WriteHeader(405)
			fmt.Fprintln(w, "Invalid Method")
		}
	}
}

func (self *Routes) Get(next http.HandlerFunc) func(http.ResponseWriter, *http.Request) {

	return func(w http.ResponseWriter, r *http.Request) {

		if r.Method == "Get" {
			self.logger.Printf("[%s: %s]: 200 [GET]", r.RemoteAddr, r.RequestURI)
			next.ServeHTTP(w, r)
		} else {
			self.logger.Printf("[%s: %s]: 405 [Invalid method]", r.RemoteAddr, r.RequestURI)
			w.WriteHeader(405)
			fmt.Fprintln(w, "Invalid Method")
		}
	}
}