Fix: Invalidate Metadata

src/Blob/Controllers/BlobController.cs

@@ -11,6 +11,7 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.StaticFiles;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
@@ -320,6 +321,10 @@ namespace Coscine.Api.Blob.Controllers
                     return BadRequest($"No provider for: \"{resource.Type.DisplayName}\".");
                 }
                 await resourceTypeDefinition.DeleteEntry(resource.Id.ToString(), path);
+
+                var userGraphName = $"{_rdfStoreConnector.UserUrlPrefix}/{user.Id}";
+                _rdfStoreConnector.SetInvalidation(resource.Id.ToString(), path, "metadata", new Uri(userGraphName));
+
                 LogAnalytics("Delete File", resourceId, path, user);
                 return NoContent();
             }