Book Image

Building Serverless Microservices in Python

By : Richard Takashi Freeman
Book Image

Building Serverless Microservices in Python

By: Richard Takashi Freeman

Overview of this book

Over the last few years, there has been a massive shift from monolithic architecture to microservices, thanks to their small and independent deployments that allow increased flexibility and agile delivery. Traditionally, virtual machines and containers were the principal mediums for deploying microservices, but they involved a lot of operational effort, configuration, and maintenance. More recently, serverless computing has gained popularity due to its built-in autoscaling abilities, reduced operational costs, and increased productivity. Building Serverless Microservices in Python begins by introducing you to serverless microservice structures. You will then learn how to create your first serverless data API and test your microservice. Moving on, you'll delve into data management and work with serverless patterns. Finally, the book introduces you to the importance of securing microservices. By the end of the book, you will have gained the skills you need to combine microservices with serverless computing, making their deployment much easier thanks to the cloud provider managing the servers and capacity planning.
Table of Contents (13 chapters)
Title Page
Dedication

Connecting API Gateway, Lambda, and DynamoDB

Now that we know the API Gateway integration with the Lambda function works, we will deploy it and get the URL. The architecture is shown in the following diagram:

The workings of this architecture is as follows:

  1. Sign in to the AWS Management Console and open the API Gateway console at https://console.aws.amazon.com/apigateway/.
  2. In the Amazon API Gateway navigation pane, choose APIs and metrics.
  3. Select Resources under metrics and /Vists/{resourceId}, and choose Deploy API from the Actions drop-down menu.
  4. In the Deploy API pop-up window, perform the following steps:
    1. In Deployment stage, choose [New Stage]
    2. In Stage name, type prod
    3. In Stage description, type prod
    4. Select Deploy
  5. The Stages under metrics should be automatically selected on the left-hand menu.
  6. Select GET under prod/visits/{resourceId}/GET to get the invoke URL. The invoke...