Add public-samples/benchmarks-website---replit-yxxvno/src/backend/.en…

…v.example

src/backend/.env.example

@@ -0,0 +1,52 @@
+# Server Configuration
+# -------------------
+NODE_ENV=development                           # Application environment (development/staging/production)
+PORT=3000                                      # Server port number for the application
+API_VERSION=v1                                 # API version for routing
+CORS_ORIGIN=http://localhost:5173              # Allowed CORS origin for frontend
+
+# Database Configuration (PostgreSQL v14+)
+# --------------------------------------
+DB_HOST=localhost                              # PostgreSQL database host address
+DB_PORT=5432                                   # PostgreSQL database port number
+DB_NAME=saas_metrics                           # PostgreSQL database name
+DB_USER=postgres                               # PostgreSQL database user
+DB_PASSWORD=your_secure_password               # PostgreSQL database password (min 12 chars, mixed case, numbers, special chars)
+DB_SSL=true                                    # Enable SSL for database connection (required in production)
+DB_SSL_REJECT_UNAUTHORIZED=true                # Reject unauthorized SSL certificates
+DB_POOL_MIN=2                                  # Minimum database connection pool size
+DB_POOL_MAX=10                                 # Maximum database connection pool size
+DB_TIMEOUT=30000                               # Database query timeout in milliseconds
+
+# Redis Cache Configuration (Redis v6.2+)
+# ------------------------------------
+REDIS_HOST=localhost                           # Redis cache host address
+REDIS_PORT=6379                                # Redis cache port number
+REDIS_PASSWORD=your_redis_password             # Redis cache password (min 12 chars, mixed case, numbers, special chars)
+REDIS_TTL=900                                  # Redis cache TTL in seconds (15 minutes)
+REDIS_MAX_RETRIES=3                            # Maximum Redis connection retry attempts
+REDIS_RETRY_DELAY=1000                         # Delay between Redis retry attempts in milliseconds
+
+# Authentication Configuration
+# --------------------------
+# Google OAuth Settings
+GOOGLE_CLIENT_ID=your_google_client_id         # Google OAuth client ID from Google Cloud Console
+GOOGLE_CLIENT_SECRET=your_google_client_secret # Google OAuth client secret from Google Cloud Console
+GOOGLE_CALLBACK_URL=http://localhost:3000/api/v1/auth/google/callback # Google OAuth callback URL
+
+# JWT Configuration
+JWT_SECRET=your_jwt_secret_key                 # JWT signing secret key (min 32 chars, high entropy)
+JWT_EXPIRES_IN=1800                            # JWT token expiry in seconds (30 minutes)
+JWT_REFRESH_SECRET=your_jwt_refresh_secret     # JWT refresh token secret key (different from JWT_SECRET)
+JWT_REFRESH_EXPIRES_IN=604800                  # JWT refresh token expiry in seconds (7 days)
+
+# Session Configuration
+SESSION_NAME=saas_metrics_sid                  # Session cookie name
+SESSION_SECRET=your_session_secret             # Session encryption secret (min 32 chars, high entropy)
+SESSION_TIMEOUT=3600000                        # Session timeout in milliseconds (1 hour)
+
+# NOTE: This is an example configuration file. In production:
+# 1. Use strong, unique passwords and secrets
+# 2. Enable SSL/TLS for all connections
+# 3. Store sensitive values in a secure vault
+# 4. Never commit actual .env files to version control