SignalStore Extensions - The Complete Lessons

The NgRx SignalStore is the modern state management solution for Angular. Its basic functionality is actually quite simple. But you can do a lot with it in terms of standardization, unobtrusive RxJS integration, and even - if you want - support for event-based architectures via the Flux/Redux pattern. To me personally, the real selling point is the extensibility of the SignalStore. This is also why I left my "beloved" NgRx Global Store for the SignalStore very early on. This is a very long video, where I try to share my most valuable lessons on patterns, approaches, and techniques I have encountered so far. The video is split into multiple chapters. We start with the basics of extensibility, but then go much deeper. Here's the link to the repository: https://github.com/rainerhahnekamp/ng... Enjoy. --- 0:00 Introduction 3:16 Walkthrough - The Unoptimized App 11:10 1.1 Creating a Simple Extension 17:19 1.2 Parameterized Extensions 22:14 1.3 Constraining the Store 31:17 1.4 Decoupling with withFeature 37:05 1.5 Updater Functions 48:32 1.6 Why Extensions (Mixins, not Inheritance) 58:55 2. Implementing Extensions Manually 1:22:19 3. Splitting Stores Across Files 1:56:23 4. Dynamic Extensions 2:23:09 5. Non-Polluting Features (Isolated Extensions)