Managing User Interactions in a Telegram Bot

I am working on a Telegram bot for a personal project, and I need it to interact exclusively with three specific users. What is the best approach to achieve this? My initial idea is to maintain a file containing the chat IDs of the three users and verify this before executing any commands. If the chat ID matches, the bot will provide the appropriate information; otherwise, it will respond with a message like ‘goodbye’.

Are there alternative methods to prevent unauthorized interactions with my bot?

Note: I am utilizing the python-telegram-bot library.

An alternative approach is to use a decorator function to handle authentication. This function can check incoming updates and filter requests based on a predefined list of authorized user IDs before passing control to the handler functions. Implementing this at the decorator level could help keep your main code clean and separate authentication logic from other functionalities. Additionally, using environment variables to store user IDs can enhance security, preventing them from being hardcoded and easily accessible in your codebase.

For an added layer of control, consider implementing a role-based access control system within your bot. Assign specific roles to your three users, each with tailored permissions. This way, even if they are identified by chat IDs, their interactions are constrained by their defined roles. This can further compartmentalize functionalities based on each user’s needs, ensuring each one has access to only certain parts of the bot’s features. This level of granularity not only secures but also organizes the interaction flow more effectively.