# Microsoft.AspNetCore.Http.Metadata

``` diff
+namespace Microsoft.AspNetCore.Http.Metadata {
+    public interface IFromBodyMetadata {
+        bool AllowEmpty { get; }
+    }
+    public interface IFromFormMetadata {
+        string Name { get; }
+    }
+    public interface IFromHeaderMetadata {
+        string Name { get; }
+    }
+    public interface IFromQueryMetadata {
+        string Name { get; }
+    }
+    public interface IFromRouteMetadata {
+        string Name { get; }
+    }
+    public interface IFromServiceMetadata
+}
```

