A Simple Python Example

In this Python example, we will build a Lambda function that can be hooked up to methods in API Gateway to provide a simple CRUD REST API that persists JSON objects in DynamoDB.

To implement this, we will create a single Lambda function that will be associated with the GET, POST, PUT, and DELETE HTTP methods of a single API Gateway resource. We will show the API Gateway connections later. For now, we will focus on our Lambda function.

Installing Dependencies

Put all dependencies in the requirements.txt file in this directory and then run the following command to install them in this directory prior to uploading the code.

$ pip install -r requirements.txt -t /full/path/to/this/code

This will install all of the dependencies inside the code directory so they can be bundled with your own code and deployed to Lambda.

The setup.cfg file in this directory is required if you are running on MacOS and are using brew. It may not be needed on other platforms.