Lambda provides a management console and API for managing and invoking functions. It provides runtimes that support a standard set of features so that you can easily switch between languages and frameworks, depending on your needs. In addition to functions, you can also create versions, aliases, layers, and custom runtimes.

Features

Scaling

Concurrency controls

Function URLs

Asynchronous invocation

Event source mappings

Destinations

Function blueprints

Testing and deployment tools

Application templates

https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-features.html