- Create this environment variable "ASPNETCORE_ENVIRONMENT" with this value: "Development" and restart your computer
- Change the connection string: ContactsDatabase in appsettings.Development.json file
- Run the project from VS or command line, the country table should be populated
- Create state(optional), city, zip code and finally contact
Please note, I have integrated geolocation API, but it is not a good one, so usually it does not work