feat(config): integrate JWT secret into AppConfig and adjust config p…

…aths

- Update 'config' package to set the config path to the current directory.
- Refactor 'middlewares' to use JWT secret from 'config.GatekeeperConfig'.
- Enhance 'models.AppConfig' to include 'JWTSecret'.
- Add JWT secret key to the YAML configuration file.

README.md

@@ -42,7 +42,7 @@ By configuring and customizing these gates, you can fine-tune how Gatekeeper han
 
 1. **Setting up the configuration file:**
 
-Modify the `gates.yaml` file in the src/config directory to define your access control rules. Here's an example configuration:
+Modify the `settings.yaml` file in the root directory to define your access control rules. Here's an example configuration:
 
 ```yaml
 gates:

src/config/gates.yaml → settings.yaml

@@ -17,3 +17,4 @@ gates:
           path: "/post"
           limit: 5
           duration: 30
+jwt_secret: "your-secret-key"

src/config/config.go

@@ -10,9 +10,9 @@ import (
 var GatekeeperConfig models.AppConfig
 
 func SetupConfig() {
-	viper.SetConfigName("gates")
+	viper.SetConfigName("settings")
 	viper.SetConfigType("yaml")
-	viper.AddConfigPath("src/config")
+	viper.AddConfigPath(".")
 
 	if err := viper.ReadInConfig(); err != nil {
 		log.Fatalf("Error reading config file: %s", err)

src/middlewares/auth.go

@@ -4,13 +4,14 @@ import (
 	"context"
 	"net/http"
 
+	"github.com/atanurdemir/gatekeeper/src/config"
 	"github.com/atanurdemir/gatekeeper/src/types"
 	"github.com/golang-jwt/jwt/v5"
 )
 
 func AuthMiddleware(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		secretKey := "your-secret-key"
+		secretKey := config.GatekeeperConfig.JWTSecret
 		accessToken := r.Header.Get("Authorization")
 		if accessToken == "" {
 			http.Error(w, "Unauthorized", http.StatusUnauthorized)

src/models/config.go

@@ -1,16 +1,17 @@
 package models
 
 type AppConfig struct {
-	Gates []Gate `yaml:"gates"`
+	JWTSecret string `mapstructure:"jwt_secret"`
+	Gates     []Gate `mapstructure:"gates"`
 }
 
 type Gate struct {
-	Path   string `yaml:"path"`
-	Method string `yaml:"method"`
-	Rules  []Rule `yaml:"rules"`
+	Path   string `mapstructure:"path"`
+	Method string `mapstructure:"method"`
+	Rules  []Rule `mapstructure:"rules"`
 }
 
 type Rule struct {
-	Name   string      `yaml:"name"`
-	Config interface{} `yaml:"config"`
+	Name   string      `mapstructure:"name"`
+	Config interface{} `mapstructure:"config"`
 }