Getting data from Firebase in Xamarin.Forms app

Issue

Hi so I'm moving my app from a MySQL database to Firebase, but I'm having trouble getting the connection between my c# code and firebase set up.

So I have a Firestore database that looks like this:

[Firebase database with "Persons" collection containing one record with an auto-generated Id. This record contains Admin (set to true) and Fullname (set to PJ)][1] [1]: https://i.stack.imgur.com/FFF9A.png

I have this code:

        public static async Task<List<Person>> GetAllPersons()
    {

        return (await firebase
          .Child("Persons")
          .OnceAsync<Person>()).Select(item => new Person
          {
              Fullname = item.Object.Fullname,
              Admin = item.Object.Admin
          }).ToList();
    }

But when I try to execute the function i get this error message:

Firebase.Database.FirebaseException: Exception occured while processing the 
request.
Url: https://moveeasy-72594.firebaseio.com/Persons/.json
Request Data: 
Response: {
  "error" : "404 Not Found"
}

I've set my rules to this:

rules_version = '2';
service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
      allow read, write: if request.auth == null;
    }
  }
}

Any advice would be appreciated

Solution

I suspect you may be using the wrong URL to access your database. If you created the database to be in Western Europe, its URL is one of these:

• https://moveeasy-72594.europe-west1.firebasedatabase.app/Persons.json
• https://moveeasy-72594-default-rtdb.europe-west1.firebasedatabase.app/Persons.json

Try initializing Firebase with these URLs and see if that works for you.

Answered By - Frank van Puffelen