Deep dive into the Backends

The API of the HL Custom Runtime allows to target rich amount of Clojure backends via conditional readers. Backend is a platform/library, that provides execution environment, and invokes user code in AWS Lambda context. In the documentation we use word backend/runtime interchangeably.

Therefore:

• Babashka backend - means the collection of bb command + bootstrap script that executes user code and bundled AWS Lambda event loop.
• Clojure backend - means a Docker Image of OpenJDK (or any other JDK variant) + user code and bundled AWS Lambda event loop.
• Native backend - means GraalVM Substrate VM + bootstrap script + user code and bundled AWS Lambda event loop.

Table of contents

:information_source: Some of the backends are complex and require understanding some sophisticated concepts. Backends that should be explained in detail will be linked here.

• Native Backend