Building Serverless Microservices in Python

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/.
2. Choose Create function or, in the AWS Lambda navigation pane, choose Functions and choose Create function.

3. On ...