Creating a Lambda to query DynamoDB

Now that we have the security and user-visits table set up with some data, and know how to write code to query that DynamoDB table, we will write the Lambda Python code.

Creating the Lambda function

Now we have the IAM role with two IAM policies attached, create the Lambda function itself. Here, we are creating a function from scratch, as we want to walk through the full details to deepen your understanding of what is involved in creating a serverless stack. The following diagram shows data API architecture involving CloudWatch, DynamoDB, IAM, and Lambda:

Perform the following steps:

1. Sign in to the AWS Management Console and open the AWS Lambda console at https://console.aws.amazon.com/lambda/...