Import user-service

Author: tyouwei

user-service/.gitignore

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+**/node_modules
+**/.env
+**/.idea

user-service/README.md

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+# CS3219 project: PeerPrep
+
+## User Service
+
+### Quick Start
+
+1. In the `user-service` directory, create a copy of the `.env.sample` file and name it `.env`.
+2. Create a MongoDB Atlas Cluster and obtain the connection string.
+3. Add the connection string to the `.env` file under the variable `DB_CLOUD_URI`.
+4. Ensure you are in the `user-service` directory, then install project dependencies with `npm install`.
+5. Start the User Service with `npm start` or `npm run dev`.
+6. If the server starts successfully, you will see a "User service server listening on ..." message.
+
+### Complete User Service Guide: [User Service Guide](./user-service/README.md)

user-service/src/.env.sample

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+DB_CLOUD_URI=<CONNECTION_STRING>
+DB_LOCAL_URI=mongodb://127.0.0.1:27017/peerprepUserServiceDB
+PORT=3001
+
+# Will use cloud MongoDB Atlas database
+ENV=PROD
+
+# Secret for creating JWT signature
+JWT_SECRET=you-can-replace-this-with-your-own-secret