Learn AWS Serverless Computing

Use cases

We've covered the preceding WebSocket use case for API Gateway, so let's explore a few more at a high level. Some of the examples are not strictly serverless but we're looking to get a broad understanding of where this technology is useful.

The first use case to cover is the Serverless API model, where all of the components that you use live within the serverless category in the AWS ecosystem. You can build a RESTful API backed by Lambda that stores documents or state in a DynamoDB database.

The following shows the request flow with API Gateway exposing a RESTful API and Lambda used as the compute backend, which performs actions on a DynamoDB table:

Flow of a REST request to an API

This is a really simple model and there is surely ...