From a backend dev perspective it should be possible to update Angular, as long as the backend calls stay as they were. For the integration into AEM (and the authoring UI) I cannot say much.I would check the defaults of the latest maven archetype respective the Angular setup, for example https://git...

This has nothing to do with your content.When you check the v1 PageImpl class, you can see that this model does not have any getRedirectTarget or getAppResourcesPath method.   

I still don't get your requirement in detail. I understand that you want to take existing data and embed it in a flexible way in existing components (using placeholders?).  Something similar to Contextual Content Variables (CCVar) of ACS AEM Commons [1]? [1] https://adobe-consulting-services.github....

Unfortunately you don't mention if you get this exception locally or as part of a AEM CS pipeline. In case of a local build, switch to Java 11.

I would recommend you to check Content Fragments and Experience Fragments. These are ootb features which allow you to reuse content.

of course you can do that, but I think the benefit is large, especially because you don't need to rewrite all tests at once. But you can start with using the Sling Mocks / AEM Mocks when you need to create tests.To your case: You probably need to mock each single step:@Mock Bundle myBundle; @test v...

The code for the default Jackson Exporter can be found at https://github.com/apache/sling-org-apache-sling-models-jacksonexporter/tree/master/src/main/java/org/apache/sling/models/jacksonexporter/impl Start with the JacksonExporter.java file.

That means you cannot store this state in the browser, but you have to store this state in the backend system? Yes, you can do this, but this requires, that each of these requests is handled by AEM. And that means that you cannot cache them, and likely this will become a bottleneck in your applicati...

Ok, can you share the code which is not working? My gut feeling is that on that DEV environment you have a dispatcher in front of AEM, and you are trying to fetch the country of the visitor based on the IP address of the requester. A

Sorry, no. I ran out of ideas how to approach that problem systematically; personally I would now start poking around in the system