Workspace workspace = workspaceRepository.findById(workspaceId, user);
final List<WorkspaceEntity> workspaceEntities = workspaceRepository.findEntities(workspace, user);
Iterable<String> vertexIds = getVisibleWorkspaceEntityIds(workspaceEntities);
Iterable<Vertex> graphVertices = graph.getVertices(vertexIds, authorizations);
ClientApiWorkspaceVertices results = new ClientApiWorkspaceVertices();
results.getVertices().addAll(ClientApiConverter.toClientApiVertices(graphVertices, workspaceId, authorizations));
respondWithClientApiObject(response, results);
}