I’m working on a Python Telegram Bot project and I’ve got a question about user verification. I’ve noticed that some channels are using bots to screen new members before they’re allowed to join. These channels don’t have usernames and use hidden links.
Here’s what I’m trying to figure out:
How can I send a private message to a user who requests to join the channel?
What’s the best way to set up a verification process using these messages?
How do I handle the approval or rejection based on the user’s responses?
I’m comfortable with coding, so I’m not looking for a full solution. Just some pointers on how to approach this would be super helpful. Has anyone tackled something similar before? What were the main challenges you faced?
As someone who’s implemented a similar system, I can share some insights. The key is using the ChatMemberUpdated event to catch join requests. When that fires, you can grab the user’s ID and immediately send them a DM with your verification questions.
For the verification process itself, I found it helpful to use a state machine approach. Each user goes through different states (like AWAITING_RESPONSE, VERIFYING, APPROVED, REJECTED) as they progress. This makes it easier to manage the flow and handle timeouts.
One challenge I ran into was rate limiting. If too many people try to join at once, you might hit Telegram’s API limits. I solved this by implementing a queue system for outgoing messages.
For approval or rejection, once the user completes verification, you can use the approveChatJoinRequest or declineChatJoinRequest methods. Just make sure to handle cases where the request might have expired. Hope this helps point you in the right direction!
yo, ive been in this before. use chatmemberupdated to catch join reqs, snag the user id n dm them verification q’s. state machine (awaiting, verifying) helps. dont forget rate limits, use a queue. finish with approvechatjoinrequest or declinechatjoinrequest. good luck!
Having implemented a similar system, I can offer some practical advice. The ChatMemberUpdated event is crucial for catching join requests. Once triggered, you can extract the user’s ID and immediately send a DM with your verification questions.
For the verification process, a state machine approach works well. Users progress through states like AWAITING_RESPONSE, VERIFYING, APPROVED, REJECTED. This simplifies flow management and timeout handling.
Be mindful of rate limiting. If many people try to join simultaneously, you might hit Telegram’s API limits. Implementing a queue system for outgoing messages can help mitigate this issue.
For final approval or rejection, use the approveChatJoinRequest or declineChatJoinRequest methods after verification. Remember to handle cases where the request might have expired.
Lastly, ensure your verification questions are clear and concise to avoid user confusion. Good luck with your implementation!