ProximityProductBackEnd BackEnd The client part can be found: https://github.com/Semllo/ProximityProductFrontEnd The application can be installed as a common node application API https://web.postman.co/collections/3950371-f57b712e-5aaf-4cb3-841e-99dac0203d74?workspace=8887960f-4d5e-43a2-8baf-2d22d693a234#introduction