Choose an update entry point
Bots receive updates through long polling or webhooks. Webhooks require reachable HTTPS, a matching certificate and the necessary certificate chain. Check the current guide for ports and network requirements. A self-signed setup uploads the public certificate, never its private key.
Persist before slow processing
Our recommendation is to authenticate the request, deduplicate and durably enqueue it within a short handler. Perform slow business work separately. HTTP acceptance does not mean an application, payment or reply has completed.
Consider Serverless as a distinct deployment model
Telegram Serverless supplies modules, database and deployment workflows without a self-managed VPS. Verify current runtime constraints, migration and rollback behavior instead of assuming they match your webhook server.
Operational acceptance
Test duplicates, process exit after reception, send timeouts and certificate renewal. Alert on backlog and failures. Keep tokens and webhook secrets out of access logs and error pages. Before switching consumers, decide how pending updates will be preserved.