# ============================================================ # Backend Course — .env.example # Copy this file to `.env` in each backend project root and fill. # NEVER commit `.env` — only `.env.example`। # ============================================================ # ---------- Common ---------- NODE_ENV=development PORT=3000 LOG_LEVEL=debug CORS_ORIGIN=http://localhost:5173 # ---------- JWT / Auth ---------- JWT_SECRET=change-me-to-a-long-random-string-min-32-chars JWT_EXPIRES_IN=7d BCRYPT_SALT_ROUNDS=10 # ---------- MySQL (Node/Prisma & Spring Boot) ---------- DATABASE_URL="mysql://root:root@localhost:3306/appdb" MYSQL_HOST=localhost MYSQL_PORT=3306 MYSQL_USER=root MYSQL_PASSWORD=root MYSQL_DATABASE=appdb # ---------- PostgreSQL ---------- POSTGRES_URL="postgresql://postgres:postgres@localhost:5432/appdb" # ---------- MongoDB ---------- MONGO_URL="mongodb://localhost:27017/appdb" # ---------- Redis (cache/queue) ---------- REDIS_URL="redis://localhost:6379" # ---------- Python / FastAPI ---------- PY_PORT=8000 PY_DATABASE_URL="postgresql+asyncpg://postgres:postgres@localhost:5432/appdb" # ---------- Java / Spring Boot ---------- SERVER_PORT=8080 SPRING_DATASOURCE_URL=jdbc:mysql://localhost:3306/appdb SPRING_DATASOURCE_USERNAME=root SPRING_DATASOURCE_PASSWORD=root # ---------- Microservices ---------- GATEWAY_PORT=4000 ORDER_SERVICE_URL=http://localhost:4001 PAYMENT_SERVICE_URL=http://localhost:4002 NOTIFICATION_SERVICE_URL=http://localhost:4003 RABBITMQ_URL=amqp://guest:guest@localhost:5672 KAFKA_BROKERS=localhost:9092 # ---------- Object Storage (S3-compatible) ---------- S3_ENDPOINT=http://localhost:9000 S3_REGION=us-east-1 S3_ACCESS_KEY=minio S3_SECRET_KEY=minio123 S3_BUCKET=uploads # ---------- Payments (Stripe test) ---------- STRIPE_SECRET_KEY=sk_test_xxx STRIPE_WEBHOOK_SECRET=whsec_xxx # ---------- AI Gateway (optional) ---------- OPENAI_API_KEY=sk-xxx EMBEDDING_MODEL=text-embedding-3-small