Learn how to maintain the health of your Elixir application in production by using key components of a real-time stack.

Become an Elixir Professional

In this module, we'll first learn how to build real-time applications that are fast and employ few resource overheads. Today’s software users expect the data on their screens to reflect instantly. We'll learn to win our users’ trust by giving them a seamless application experience powered by real-time features. Then we'll focus on the essential part of the real-time stack (Elixir, Phoenix channels, websockets, and GenStage). We'll also learn to work with some of the more advanced features of Phoenix, such as Phoenix Tracker. Finally, we'll look at how to keep our application healthy and happy in production.

Building Real-time Applications with Phoenix & Elixir

We have per-user data in our real-time application. How should we protect that data?

We have per-user data in our real-time application. How should we protect that data?

We must write our own cryptography code to use them.

Anyone can use the tokens during their period of validity.

There are no cross-language solutions for tokens.

What is the disadvantage of securely signed tokens for authentication?

What is the disadvantage of securely signed tokens for authentication?

A user could intentionally or accidentally connect to another user's topic.

We can't trust that the signed token was correct.

We don't need to authorize Channel access.

Our users connect and are authorized to our application. Why must we also authorize their Channel access?

Our users connect and are authorized to our application. Why must we also authorize their Channel access?

Which concept(s) are involved in authenticating a user?

Which concept(s) are involved in authenticating a user?

What factor is most important when deciding to add a new Socket versus a new Channel?

What factor is most important when deciding to add a new Socket versus a new Channel?

Check your understanding of what you've learned in this section by attempting this quiz.

Getting Started with Phoenix

Powering Real-time Applications with Phoenix

First Steps with Phoenix Channels

Restrict Socket and Channel Access

Dive Deep into Phoenix Channels

Avoid Performance Pitfalls

Build a Real-time Sneaker Store

Break Your Application with Acceptance Tests

Build a Real-time Shopping Cart

Track Connected Carts with Presence

Deploy Our Application to Production

Manage Real-time Resources

Hands-on with Phoenix LiveView

Single-page Applications with React

Appendix

Conclusion

Quiz on Socket and Channel Access