Parse-sdk-js: Parse.User.logIn or UserSubclass.logIn does not return a subclass instance

[codebreach]

    class CustomUser extends ParseUser {
      customMethod() {
        return 'a';
      }
    }
    ParseObject.registerSubclass(ParseUser.className, CustomUser);
    CustomUser.logIn('username', 'password').then((u) => {
      expect(u instanceof CustomUser).toBe(true);
      expect(u.customMethod()).toBe('a');
    });

Failing test case:
https://github.com/drinklynk/Parse-SDK-JS/commit/0a9fa9cfeee1dd9d2e47a356849ee67ae161e97a

[andrewimm]

Interesting. Seems like rather than instantiating a new ParseUser directly, we want to use the className approach and create a new ParseObject('_User').
This might get a little tricky with the user class rewrite flag, but I'll look into this.

[dpoetzsch]

Same problem seems to exist with User.become

[fmendoza]

Any workaround for this issue?

[flovilmart]

This hasn’t been addressed yet, but further investigation would be appreciated

[fmendoza]

I found a way to do it

let user = new MyCustomUserClass;
user.username = 'johndoe';
user.password = 'secret';
user.logIn(null).then(obj => {
/// obj is an instance of MyCustomUserClass

[gcysne]

Thanks fmendoza, this workaroud is really helpfull.

[awgeorge]

This workaround seems to no longer work with parse server v3 as we get username/email is required, @fmendoza can you confirm?

[fmendoza]

Still working on my end with Parse Server v3 and Parse SDK JS 2.1