Generally Available: Custom handler support in Azure Functions Flex consumption

Generally Available: Custom handler support in Azure Functions Flex consumption

Azure Functions now supports custom handlers in Flex consumption. Custom handlers are lightweight web servers that receive events from the Functions host. Any language that supports HTTP primitives can implement a custom handler.

Custom handlers are best suited for situations where you want to:

• Implement a function app in a language that's not currently offered out-of-the box, such as Go or Rust.
• Implement a function app in a runtime that's not currently featured by default, such as Deno.
  With custom handlers, you can use triggers and input and output bindings via extension bundles.