Implement Authentication (Sign In/Sign Up) using Cookie-based JWTs

[progGabo]

Requirements:

1. JWT Token Management:
   I managed to create token verify it but setting it into HTTP-only cookie was problem on streamlit. It works on FastAPI swagger
   but for some reason it does not work on streamlit and I did not figured it out. I tried CookieManager from
   streamlit_cookies_manager but it did not worked as it should. I also tried fastapi-jwt-auth but there was problem
   because it is using Pydantic V1 not V2. So for now I am storing access token in session state and when it needs to be verified
   Iam sending it to backend .
2. Authentication Flow:
   All endpoints are created and working as they should.
3. Database Changes:
   User table created with field like Id, email, hashed password and time it was created also email is unique so no duplicate
   accounts are possible.
4. Cookie Security:
   As I said it is not working as it should but everything is set up correctly.
5. Security Considerations:
   Password is hashed using bcrypt. JWT is signed and
   validated corectly using secret key. Token expiration
   implemented.
6. Error Handling & Logging:
   It is possible I forgot some error responses but most of
   them are there
   Checklist:

• JWT-based cookie authentication implemented.
• Passwords are securely hashed using a library like bcrypt.
• Sign up route created for user registration.
• Sign in route created for user authentication and cookie setup.
• Logout route created to clear the authentication cookie.
• JWT access token is stored securely in HTTP-only cookies.
• Database migration added for creating the users table.
• Proper error handling and logging added.
• Folder structure follows the project standard.