Telegram API's 'Free' Options Carry Hidden Costs for Channel Monitoring
Accessing Telegram channel messages via the official bot API is free but requires the bot to be an admin of the channel, often necessitating difficult outreach to channel owners. Using a full client API with api_id and api_hash allows greater access but risks account bans and aggressive rate limits for new accounts. Scraping the public web interface at https://t.me/s/ provides the last ~20 messages without authentication but offers no historical backfill and requires careful parsing. The article, based on a developer's production experience, outlines these trade-offs for monitoring multiple channels.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.




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