myPrayerJournal/src/MyPrayerJournal/appsettings.json

{
  "ConnectionStrings": {
    "db": "Filename=./mpj.db"
  },
  "Kestrel": {
    "EndPoints": {
      "Http": {
        "Url": "http://localhost:3000"
      }
    }
  }
}