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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Putting together the monolithic design

This monolithic design is a solid foundation and should be the kind of result you would aim for in your first development iteration. Everything should be created with tests and documentation, as explained in Chapter 3, Coding, Testing, and Documentation: the Virtuous Cycle.

It is a short and clean implementation on top of a relational database that can be deployed with a PostgreSQL, MySQL, or a cloud provider's own SQL database. Thanks to the SQLAlchemy abstractions, a local version can run with SQLite 3 and facilitate your day-to-day development and local testing. To build this app, we've used the following extensions and libraries:

  • aiohttp: This handles all the outgoing HTTP requests
  • SQLAlchemy: This is used for the model
  • Flask-WTF and WTForms: These are used for all the forms
  • Celery and RabbitMQ: These are used for background processes and periodic tasks
  • quart-auth: This is used for managing...