JWT proto with login & registration

internal/config/config.go

@@ -0,0 +1,50 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/joho/godotenv"
+)
+
+type Config struct {
+	ServerPort    string
+	MongoURI      string
+	MongoDB       string
+	JWTSecret     string
+	JWTExpiration time.Duration
+}
+
+func Load() (*Config, error) {
+	godotenv.Load()
+
+	cfg := &Config{
+		ServerPort:    getEnv("SERVER_PORT", "8080"),
+		MongoURI:      getEnv("MONGO_URI", "mongodb://localhost:27017"),
+		MongoDB:       getEnv("MONGO_DB", "aegisguard"),
+		JWTSecret:     getEnv("JWT_SECRET", ""),
+		JWTExpiration: 24 * time.Hour,
+	}
+
+	if cfg.JWTSecret == "" {
+		return nil, fmt.Errorf("JWT_SECRET is required in .env file")
+	}
+
+	if expStr := os.Getenv("JWT_EXPIRATION"); expStr != "" {
+		d, err := time.ParseDuration(expStr)
+		if err != nil {
+			return nil, fmt.Errorf("invalid JWT_EXPIRATION: %w", err)
+		}
+		cfg.JWTExpiration = d
+	}
+
+	return cfg, nil
+}
+
+func getEnv(key, defaultVal string) string {
+	if val := os.Getenv(key); val != "" {
+		return val
+	}
+	return defaultVal
+}