[BUG] IGenericResource.ApiVersion is always null

Describe the bug When retrieving an IGenericResource instance from genericResources.ListByResourceGroupAsync ApiVersion property is null.

To Reproduce The resource already exists and when showing ARM template in Azure ApiVersion is filled.

var resources = await genericResources.ListByResourceGroupAsync(Config.ResourceGroup);
foreach (var resource in resources)
{
    // resource.ApiVersion is always null
    await resource.Update().WithApiVersion(resource.ApiVersion).WithTags(new DefaultTags()).ApplyAsync();
}

Expected behavior IGenericResource.ApiVersion should be filled with the correct ApiVersion that was used when the resource was created or updated.

Setup (please complete the following information):

• Microsoft.Azure.Management.Fluent 1.31.0
• Microsoft.Azure.Management.ResourceManager.Fluent 1.31.0

[xseeseesee]

@Rookian For now, you can have simple workaround as below according to the exception you met.

foreach (var resource in resources)
{
    var res = await resourceManager.GenericResources.GetByIdAsync(resource.Id);
    await res.Update().WithApiVersion(res.ApiVersion).WithProperties(res.Properties).WithTags(new DefaultTags()).ApplyAsync();
}

If you don’t want to take extra GET request, please refer how we prepare ApiVersion in SDK And use below code to update the tags

foreach (var resource in resources)
{
    await genericResources.Inner.UpdateByIdAsync(resource.Id, "api-version", new GenericResourceInner
                        {
                            Tags = new DefaultTags()
                        });
}

[xseeseesee]

@Rookian Great. Thanks for sharing the code snippet, I think it looks good.