An example NodeJS API (GraphQL) with lambda handler backed by DynamoDB using the DataMapper lib. Includes CloudFormation template for resources and GitHub Workflows for CI/CD.

This is a contrived example, intended to demonstrate things you'd normally only incorporate into a larger bespoke app, such as:

• Configuration supporting multiple environments and environment variable based config
• Dependency Injection (DI) supporting app and request scoped containers
• Logging
• GraphQL using ApolloServer with both standalone and lambda entry points
• Testing using mocha and chai, using Test Explorer for local dev
  • Unit tests
  • Integration tests
  • Approval tests
• Launch configurations:
  • Step through debug the app via ts-node (without compiling JS first)
  • Run utility tasks in debug mode
• Build / Deploy:
  • Building, both for a lambda target (using webpack) and as a standalone NodeJS server application (not using webpack)
  • Deployment to CloudFormation with YAML based templates
  • Github CI/CD workflows

I agree with doing things the simplest way. Ideally you'd just use AWS AppSync or Amplify frameworks instead of what I have put together here. However, if you have reasons why you defer to bespoke coding, I'd personally prefer to stick to patterns I've successfully used before.