How can I assure that only my App can access my Server to get some inf

Accepted answer

It is called authentication.

https://www.c-sharpcorner.com/article/oauth-login-authenticating-with-identity-provider-in-xamarin-forms/

https://www.c-sharpcorner.com/UploadFile/e4bad6/how-to-use-authentication-by-xamarin-auth-in-xamarin-forms/

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Hey Mady check this.

https://www.c-sharpcorner.com/article/oauth-login-authenticating-with-identity-provider-in-xamarin-forms/

https://auth0.com/blog/easy-authentication-xamarin-auth0/

https://www.davidbritch.com/2020/04/authentication-from-xamarinforms-app.html

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you can use authentication and authorization

so a valid user with username and password will only be able to fetch information from server based on your application.

https://docs.microsoft.com/en-us/xamarin/xamarin-forms/enterprise-application-patterns/authentication-and-authorization

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