Book Image

Python Web Development with Sanic

By : Adam Hopkins
Book Image

Python Web Development with Sanic

By: Adam Hopkins

Overview of this book

Today’s developers need something more powerful and customizable when it comes to web app development. They require effective tools to build something unique to meet their specific needs, and not simply glue a bunch of things together built by others. This is where Sanic comes into the picture. Built to be unopinionated and scalable, Sanic is a next-generation Python framework and server tuned for high performance. This Sanic guide starts by helping you understand Sanic’s purpose, significance, and use cases. You’ll learn how to spot different issues when building web applications, and how to choose, create, and adapt the right solution to meet your requirements. As you progress, you’ll understand how to use listeners, middleware, and background tasks to customize your application. The book will also take you through real-world examples, so you will walk away with practical knowledge and not just code snippets. By the end of this web development book, you’ll have gained the knowledge you need to design, build, and deploy high-performance, scalable, and maintainable web applications with the Sanic framework.
Table of Contents (16 chapters)
1
Part 1:Getting Started with Sanic
4
Part 2:Hands-On Sanic
11
Part 3:Putting It All together

Server-sent events for push communication

Now that we know we can control the flow of information from the server, we are entering the territory of being able to build some great features for our web applications.

In the old days, when our application wanted to check the state of something, it would need to poll the web server by repeatedly sending the same request over and over again. We talked about building a music web application. We learned how we could display content, get information, and even stream some content to listen to music. Of course, the next step is to make the application social because we want to share our music with our friends. We want to add a feature that will list who is online and the name of the song they are listening to. Refreshing the page constantly would work but is a bad experience. Polling constantly by sending the same request over and over again also works, but this eats up resources and is also not a great experience.

What would be better...