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.
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.