Automated Telegram channel database scraper — 15,000+ records

Task: collect a database of active UA/RU Telegram channels
with quality filtering by topic, activity and language.

What was built:
— Phase 1: keyword search across 12 topics (News, Crypto, Sport, Auto, War etc.)
— Phase 2: graph expansion via Telegram GetChannelRecommendations API
— Filters: 500+ subscribers, active within 64h, UA/RU/MIX language
— Checkpoint system: resumes from last saved position on restart
— Output: Excel (Name / Link / Subscribers / Topic / Language)

#scraping #telegram #python #telethon #channel_database #automation