In web apps i can use the IP address or the URL to allow CORS on, with a flutter app i obviously dont have a IP address or URL so the only way ive been able to use my .NET Core API has been to use the APIKEY.
the API key is stored as a string, so that isn't the most secure way.
i have been searching for a solution on how to best do this, but i haven't been able to find anything.
So what would be the best way for me to store my API-KEY securely, or allow just my app to use the .Net Core API?