Frequently Asked Questions

This FAQ page provides answers to common questions about Hydrogram and, to some extent, Telegram in general.

Contents

• Why is the API key needed for bots?

• How to use webhooks?

• Using the same file_id across different accounts

• Using multiple clients at once on the same account

• Client started, but nothing happens

• What are the IP addresses of Telegram Data Centers?

• Migrating the account to another data center

• Why is the client reacting slowly in supergroups/channels?

• PEER_ID_INVALID error

• Code hangs when calling stop, restart, add/remove_handler

• UnicodeEncodeError: ‘…’ codec can’t encode …

• Uploading with URLs gives error WEBPAGE_CURL_FAILED

• sqlite3.OperationalError: database is locked

• sqlite3.InterfaceError: Error binding parameter

• socket.send(), OSError(), TimeoutError(), Connection lost/reset

• How to avoid Flood Waits?

• The account has been limited/deactivated