Webhook receivers do a lot of unglamorous work. They authenticate each request, parse JSON, decide whether the event matters, and only then hand it to business logic. Done on a central application server, every rejected or irrelevant event still costs a full deserialization pass.
Source: [Dev.to](https://dev.to/instawebhook/zero-copy-parsers-at-the-edge-processing-webhook-streams-with-rust-wasm-and-cloudflare-workers-3ca7)