How to deal with firebase admin sdk errors in Go?

php Xiaobian Yuzai will introduce to you how to deal with Go's Firebase Admin SDK errors. Firebase Admin SDK is a powerful tool for managing Firebase projects on the backend. However, when using the SDK, errors may occur that may affect the proper functioning of the application. Therefore, it is crucial to know how to deal with these errors. This article will provide you with some useful tips and advice to help you deal with Firebase Admin SDK errors for Go and maintain the stability and reliability of your application.

Question content

go Newbie, trying to figure out how to access error details. I have created a user and now I expect to receive the "email-already-exists" error:

fbUser, err := s.auth.CreateUser(ctx, fbUserParams)
    if err != nil {
        return nil, errors.New("[email] already exists") // <- it could be any other error, and I want to be able to handle it
    }

This is what I see in the debugger:

How to handle this error so that I can get code from it?

Solution

I think the best option is to use the errors.as function. You can learn more here: https://www.php.cn/link/aa5fb316032860bad4c453c010a2c859
The error type returned by google firebase is firebaseerror, involving two attributes: code and string. You can try the following code snippet:

fbUser, err := s.auth.CreateUser(ctx, fbUserParams)
if err != nil {
    var firebaseErr *FirebaseError
    if errors.As(err, &firebaseErr) {
        // here you can access "Code" and "String"
    } else {
        return nil, errors.New("[email] already exists")
    }
}

Thanks to this code you should be able to manage what you need. Be careful to correctly import the package that provides the firebaseerror type. Maybe read some on the firebase documentation first.
Hope this helps!

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