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.NET Aspire Dashboard - The mystery of the hidden endpoint

One of the cool features of .NET Aspire is the Aspire Dashboard(also available standalone by the way). It allows you to closely track various aspects of your app and its resources, including logs, traces, and environment configurations, in real-time.

After migrating an existing solution to .NET Aspire, I noticed that no URL was shown for some of the endpoints:

I couldn’t find a direct reason why this was the case, but I found online that it could be related to the launchsettings.json files.

Here is the launchsettings.json file for the ‘api’ project (where the endpoint URL is shown):

And here is the launchsettings.json file the for the ‘webapp’ project (where no endpoint is shown):

With some trial and error, I found that the order of the profiles in the launchsettings.json file matters and that Aspire will use the first profile found. I switched the profiles for the ‘webapp’ project:

And indeed, after doing that, the endpoint URL became visible on the dashboard:

 

More information

.NET Aspire overview - .NET Aspire | Microsoft Learn

Standalone .NET Aspire dashboard - .NET Aspire | Microsoft Learn

Enabling .NET Aspire for an existing solution

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