🔗 Using ClickHouse as a webhook endpoint with HMAC verification

One of the standout features in ClickHouse 25.12 is the HMAC function, which allows for message authentication with a shared key. This functionality enhances ClickHouse's ability to act as a webhook endpoint by enabling verification of incoming requests, thereby filtering out unauthorized sources.

The setup involves three primary components: a staging table initiated with the MergeTree engine, a materialized view for data validation, and a logs table to store successful entries. This method, paired with ClickHouse's architecture, ensures that only validated data is recorded, while invalid requests are rejected based on signature mismatches.