return func(w http.ResponseWriter, req *http.Request) {
		ctx := req.Context()
		// For performance tracking purposes.
		ctx, span := tracing.Start(ctx, "Patch", traceFields(req)...)
		defer span.End(500 * time.Millisecond)

		// Do this first, otherwise name extraction can fail for unrecognized content types
		// TODO: handle this in negotiation
		contentType := req.Header.Get("Content-Type")