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Shipped: A service somebody else could run
I built a secure backend Habit Tracker API using Node.js, Express, and native SQLite.
How to verify the acceptance criteria:
- Deployed & Public: The live service is hosted on Render at the provided URL, and the source code is fully linked on GitHub.
- Authentication & Security: Protected routes require an Authorization header and return 401 Unauthorized if credentials are missing or invalid.
- Data Isolation: All queries are strictly filtered by user_id to ensure users cannot access other accounts' rows.
- Retry-Safe (Idempotent) Write Path: The POST /habits route uses an idempotencyKey to prevent duplicate records during retries (detailed in the README).
- Descriptive Errors: The API returns clear JSON error messages for invalid requests.
- Testing: Reviewers can easily test all endpoints using the test.http file in the repository by swapping the localhost URL with the live Render URL.
Repository: https://github.com/oliviamol/Habittracker
Live: https://habittracker-cb70.onrender.com/
Built for the Verified Backend Internship · Final project
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