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Includes Docker, setup guide, sample responses, and full API structure.

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A secure and modular Flask API endpoint to change user passwords via JWT authentication. Checks the old password and saves the new one after hashing.

• 🧠 Authenticated password change via JWT
• 🔐 Validates old_password, stores new_password securely
• 🧾 Uses bcrypt for password hashing
• 🚫 Handles missing token, bad credentials, and generic exceptions
• 🧱 SQLite + Flask-SQLAlchemy integration
• 🐳 Docker-ready

POST /change-password

Headers:

Authorization: Bearer <your.jwt.token> 

Request Body:

{ "old_password": "currentpassword", "new_password": "newsecurepassword" }

Success Response:

{ "message": "Password updated" }

{ "error": "Authorization token missing or invalid" } { "error": "Unprocessable token or malformed request" } { "error": "Old password is incorrect" }

pip install -r requirements.txt

• Flask
• Flask-JWT-Extended
• Flask-SQLAlchemy
• Flask-Bcrypt

python app.py

Or via Docker:

docker build -t secure-password-update-api . docker run -p 5000:5000 secure-password-update-api

• ✅ Valid password update
• ⚠️ Wrong old password
• 🛑 Missing or expired JWT

Screenshots saved in /screens

Includes full JWT protection, bcrypt hashing, and Docker setup:

👉 Buy it on Gumroad

• Email: talabov.ali72@gmail.com
• Telegram: @talabovali

Need this in another language/stack (Node.js, Go, etc)?
Custom dev available — just reach out.