My current challenge involves trying to detect an authorization error from Firebase/AngularFire by utilizing the catch method. However, I encounter an issue with the error message stating
Property 'catch' does not exist on type 'FirebaseListObservable<any[]>'The root of the problem arises when certain data is inaccessible due to authentication rules. The code works fine when I am authenticated (minus the .catch statement which causes a compilation error).
Records: FirebaseListObservable<any[]>;
constructor(public afAuth: AngularFireAuth, public af: AngularFireDatabase)
{
try {
this.user = afAuth.authState;
this.Records = af.list('/Testing');
}
catch (e) {
console.log((<Error>e).message);//conversion to Error type
}
}
The solution above functions as expected. Nevertheless, if access to the /Testing data is restricted by authentication rules, an exception is thrown. I have attempted various approaches, such as using try/catch blocks, but to no avail. I stumbled upon references suggesting the usage of the catch method, like so:
this.Records = af.list('/Testing').catch(e => {
console.log((<Error>e).message);//conversion to Error type
});
However, this method results in the aforementioned compilation error.
While I am aware that I could simply adjust the Firebase read permissions to allow for unrestricted data access, my aim is to enhance the security of my code by handling such error scenarios. This proactive approach ensures that individuals attempting to interact with restricted data within the application are met with proper security measures, despite any limitations in data accessibility.