Hi @steviecoaster,
The current package import tool uses the NuGet API. It's not really easy to use, and I'm afraid our API access code isn't really "portable" -- it's tightly integrated into Connectors, which are tightly integrated into Feeds, etc.
Here's a guide on how to query all published packages from a NuGet feed:
https://learn.microsoft.com/en-us/nuget/guides/api/query-for-all-published-packages
That said, next week we will be releasing a brand-new package importer that will connect to Sona Nexus, Artifactory, AzureDevOps, ProGet, GitHub, and GitLab. These use the provider-specific APIs and work much better than what we have now.
Functionality it's the same, but now your credentials are stored in ProGet. You can also run it multiple times, and it will only import new packages. This is useful for the cases where you are transitioning usage.
-- Dean
