Front: https://github.com/snahelou/todo-backend-js-spec from https://github.com/TodoBackend/todo-backend-js-spec
Middle-Back: https://github.com/snahelou/vertx-blueprint-todo-backend from https://github.com/sczyh30/vertx-blueprint-todo-backend
Front: repo.treescale.com/snahelou22/frontend
Middle: repo.treescale.com/snahelou22/middleware