Bug: /feedback endpoint missing in Flask ML API — Node forwards to a 404

[Harshada-Yele]

Bug Report

Node's /feedback route (in server.js) forwards requests to
${ML_API_BASE}/feedback, but backend/app.py only defines:

• /
• /health
• /predict

There is no /feedback route in Flask. Any feedback submission
Currently returns a 404 from Flask, relayed to the frontend as an error.

Impact

The feedback feature documented in the README isn't working.

Proposed Fix

Add a minimal POST /feedback route to app.py that:

• Accepts { text, predicted_label, correct_label }
• Validates correct_label is one of ham, spam, or smishing
• Appends to feedback_store.csv
• Returns 201 on success, 400 on invalid data

[github-actions]

👋 Welcome back! Thanks for your continued contribution. Your issue/PR is received and waiting for maintainer review.

[github-actions]

The issue highlights that the /feedback endpoint is missing in the Flask backend of an ML API, causing feedback submissions to result in a 404 error. While Node.js forwards requests to this endpoint, it is not implemented in app.py. A proposed fix involves adding a POST /feedback route to handle feedback data, validate it, store it in a CSV file, and return appropriate HTTP responses.

[Harshada-Yele]

Hi @Userunknown84
I would like to contribute to this issue under SSOC26
Please assign it to me.

[Userunknown84]

/feedback route par ML ka issue h not defined h? Ye issue already assigned h broken wala. If not related to broken then you can proceed on this