Use pgadmin or any other Postgre SQL database admimnistration tool. You can choose any database name, owner and server port you like, just don't forget to check that yur configuration settings from step 2 are correct.

In appsettings.json file, change the ConnectionStrings block so that it maches your connection string.

  "ConnectionStrings": {
    "Postgres": "Host=localhost;Port=5433;Username=postgres;Password=postgres;Database=DutyScheduler"
  }

Open up powershell or cmd and cd into DutyScheduler\DutyScheduler.Service\src\DutyScheduler directory. From there, run the following commands

dotnet ef migrations add <migration_name>
dotnet ef database update

When you run the application, docs will be avaliable at http://localhost:5000/swagger/ui/index.html.

Document your API methods with xml comments and the xml docs will be generated and displayed at the specified URL.