Added Renew Workflow

.gitignore

@@ -19,3 +19,9 @@
 
 # Go workspace file
 go.work
+
+# Conf Folder
+conf
+
+# Environment files
+*.env

handlers/handlers.go

@@ -101,6 +101,34 @@ func ValidateHandler(w http.ResponseWriter, r *http.Request) {
 	json.NewEncoder(w).Encode(response)
 }
 
+func RenewHandler(w http.ResponseWriter, r *http.Request) {
+	// Read token from Authorization header
+	token := extractToken(r.Header.Get("Authorization"))
+	if token == "" {
+		writeJsonError(w, "Token not provided", http.StatusBadRequest)
+		return
+	}
+
+	// Validate token against Redis
+	userId, err := redis.ValidateToken(token)
+	if err != nil {
+		println("Error validating token: ", err.Error())
+		writeJsonError(w, "Invalid token", http.StatusUnauthorized)
+		return
+	}
+
+	token, err = redis.RenewToken(token, userId)
+	if err != nil {
+		println("Error renewing token: ", err.Error())
+		writeJsonError(w, "Invalid token", http.StatusConflict)
+		return
+	}
+
+	// Respond with username
+	response := map[string]string{"token": token}
+	json.NewEncoder(w).Encode(response)
+}
+
 func extractToken(authHeader string) string {
 	if authHeader == "" {
 		return authHeader

main.go

@@ -21,6 +21,7 @@ func main() {
 	r.HandleFunc("/login", handlers.LoginHandler).Methods("POST")
 	r.HandleFunc("/register", handlers.RegisterHandler).Methods("POST")
 	r.HandleFunc("/validate", handlers.ValidateHandler).Methods("GET")
+	r.HandleFunc("/renew", handlers.RenewHandler).Methods("GET")
 
 	port := os.Getenv("SERVER_PORT")
 	if port == "" {

redis/redis.go

@@ -39,6 +39,12 @@ func GenerateToken(userId string) (string, error) {
 	return token, nil
 }
 
+func RenewToken(token string, userId string) (string, error) {
+	GetInstance().Del(context.Background(), fmt.Sprintf("auth_token:%s", token))
+	GetInstance().Del(context.Background(), fmt.Sprintf("auth_user:%s", userId))
+	return GenerateToken(userId)
+}
+
 func ValidateToken(token string) (string, error) {
 	val, err := GetInstance().Get(context.Background(), fmt.Sprintf("auth_token:%s", token)).Result()
 	if err == redis.Nil {