Book Image

Building Python Microservices with FastAPI

By : Sherwin John C. Tragura
3 (2)
Book Image

Building Python Microservices with FastAPI

3 (2)
By: Sherwin John C. Tragura

Overview of this book

FastAPI is an Asynchronous Server Gateway Interface (ASGI)-based framework that can help build modern, manageable, and fast microservices. Because of its asynchronous core platform, this ASGI-based framework provides the best option when it comes to performance, reliability, and scalability over the WSGI-based Django and Flask. When working with Python, Flask, and Django microservices, you’ll be able to put your knowledge to work with this practical guide to building seamlessly manageable and fast microservices. You’ll begin by understanding the background of FastAPI and learning how to install, configure, and use FastAPI to decompose business units. You’ll explore a unique and asynchronous REST API framework that can provide a better option when it comes to building microservices. After that, this book will guide you on how to apply and translate microservices design patterns in building various microservices applications and RESTful APIs using the FastAPI framework. By the end of this microservices book, you’ll be able to understand, build, deploy, test, and experiment with microservices and their components using the FastAPI framework.
Table of Contents (17 chapters)
1
Part 1: Application-Related Architectural Concepts for FastAPI microservice development
6
Part 2: Data-Centric and Communication-Focused Microservices Concerns and Issues
11
Part 3: Infrastructure-Related Issues, Numerical and Symbolic Computations, and Testing Microservices

Structuring and organizing huge projects

In FastAPI, big projects are organized and structured by adding packages and modules without destroying the setup, configuration, and purpose. The project should always be flexible and scalable in case of additional features and requirements. One component must correspond to one package, with several modules equivalent to a blueprint in a Flask framework.

In this prototypical intelligent tourist system, the application has several modules such as the login, administration, visit, destination, and feedback-related functionalities. The two most crucial are the visit module, which manages all the travel bookings of the users, and the feedback module, which enables clients to post their feedback regarding their experiences at every destination. These modules should be separated from the rest since they provide the core transactions. Figure 2.1 shows how to group implementations and separate a module from the rest using packages:

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