Book Image

Python Microservices Development – 2nd edition - Second Edition

By : Simon Fraser, Tarek Ziadé
Book Image

Python Microservices Development – 2nd edition - Second Edition

By: Simon Fraser, Tarek Ziadé

Overview of this book

The small scope and self-contained nature of microservices make them faster, cleaner, and more scalable than code-heavy monolithic applications. However, building microservices architecture that is efficient as well as lightweight into your applications can be challenging due to the complexity of all the interacting pieces. Python Microservices Development, Second Edition will teach you how to overcome these issues and craft applications that are built as small standard units using proven best practices and avoiding common pitfalls. Through hands-on examples, this book will help you to build efficient microservices using Quart, SQLAlchemy, and other modern Python tools In this updated edition, you will learn how to secure connections between services and how to script Nginx using Lua to build web application firewall features such as rate limiting. Python Microservices Development, Second Edition describes how to use containers and AWS to deploy your services. By the end of the book, you’ll have created a complete Python application based on microservices.
Table of Contents (14 chapters)
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In this chapter, we've looked at how a service can interact with other services synchronously, by using a Requests session, and asynchronously, by using Celery workers or more advanced messaging patterns based on RabbitMQ.

We've also looked at some ways to test a service in isolation by mocking other services, but without mocking the message brokers themselves.

Testing each service in isolation is useful, but when something goes wrong, it's hard to know what happened, particularly if the bug happens in a series of asynchronous calls.

In that case, tracking what's going on with a centralized logging system helps a lot. The next chapter will explain how we can tool our microservices to follow their activities.