We talk about Microsoft's dependency injection package TSyringe and its different dependency scopes. We explain how to use resolution scoped dependencies over transient, singleton, and container scoped dependencies to limit the scope of a dependency to a single lambda invocation.

AWS tags are key-value labels you can assign to AWS resources that give extra information about it.

Our project began with a small ask: build a small Python back-end using AWS Lambda and API Gateway (with just a handful of endpoints to support a few pages) and use Serverless [https://serverless.com/] to manage the Cloud Formation setup. Not very involved, not much code, not even much configuration for the deploy. Next came authentication. In pursuing the joint dreams of DRTW ("don't reinvent the wheel") and WALCAP ("write as little code as possible"), we selected AWS Cognito over other opti