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

Integration testing using real test data

Now that we understand the real test data, we will look at how we can test a deployed Lambda function. First, you will need to install and set up the AWS CLI and configure the AWS Credentials as shown at the end of Chapter 1, Serverless Microservices Architectures and Patterns:

$ sudo pip3 sudo install awscli 
$ aws configure

We will redeploy the serverless microservice stack we deployed in Chapter 3Deploying Your Serverless Stack, so that we can test it. Use the following commands:

$ cd ./serverless-microservice-data-api/bash/apigateway-lambda-dynamodb
$ ./

This will rebuild the Lambda ZIP package as the code if there have been any changes. Then it will package and deploy the code and SAM configuration. Finally, it will create the API Gateway, Lambda function, and DynamoDB table.

For testing...