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)
12
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13
Index

Refactoring Jeeves

Examining Jeeves to see what aspects could be improved as a microservice, we might discover some external queries are slowing down our responses or using too many resources.

However, we also discover a more fundamental change to the architecture. Responding to an incoming message is purely for the benefit of Slack's infrastructure, as the user does not see that message. Sending messages to Slack is independent of receiving messages, and so those two elements could be separate services. Instead of a monolithic application, we could have a microservice that simply accepts incoming messages, and routes them appropriately to other microservices that perform the actions the user has asked for. Then those services can all contact a microservice that specializes in sending messages to Slack.

Some of these services will need to contact the database, and if we were to keep our current database architecture then each of these new microservices would need the...