String graphVertexId = getRequiredParameter(request, "graphVertexId");
String propertyName = getRequiredParameter(request, "propertyName");
String propertyKey = getRequiredParameter(request, "propertyKey");
User user = getUser(request);
Authorizations authorizations = getAuthorizations(request, user);
String workspaceId = getActiveWorkspaceId(request);
Vertex vertex = graph.getVertex(graphVertexId, authorizations);
if (vertex == null) {
respondWithNotFound(response, String.format("vertex %s not found", graphVertexId));