Add authentication for custom nuget repositories

[eladavron]

Either I've completely missed this or this feature currently isn't available.
I wanted to add a custom nuget repository (something we use internally in the company) but I couldn't find a way to add authentication, which is required by this repository.
Please add this, it will be very useful.

[maraf]

That is something missing in UI. PR would be welcome.

In the meantime, you should be able to bypass it if you

a) Modify directly nuget.config for Plugin Manager C:\Users\USER\AppData\Local\GitExtensions\UserPlugins\NuGet.Config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources>
    <add key="nuget" value="https://api.nuget.org/v3/index.json" />

    <!-- New source -->
    <add key="github" value="https://nuget.pkg.github.com/NAMESPACE/index.json" />
  </packageSources>

  <!-- Crendentials for new source -->
  <packageSourceCredentials>
    <github>
        <add key="Username" value="USERNAME" />
        <add key="ClearTextPassword" value="PASSWORD" />
      </github>
  </packageSourceCredentials>
</configuration>

b) Use dotnet CLI to do the same thing

dotnet nuget add source --username USERNAME --password PASSWORD --store-password-in-clear-text --name github "https://nuget.pkg.github.com/NAMESPACE/index.json" --configfile C:\Users\USER\AppData\Local\GitExtensions\UserPlugins\NuGet.Config

I haven't actually tried them because I don't have a feed with auth at hand, but these are valid nuget options and Plugin Manager is using the same mechanics, so they should work

[eladavron]

I tried that but it throws this error:

Despite it working correctly on Postman with same credentials.
Tried with non-cleartext password too, same error.

I suspect it may be using the wrong authentication method when doing the POST?

[maraf]

Sorry, I don't have any idea without digging deeper.