Angular 4: reactive form control is stuck in pending state with a custom async validator

Question

I am building an Angular 4 app that requires the BriteVerify email validation on form fields in several components. I am trying to implement this validation as a custom asyn

Answer 1

I've been doing it slightly differently and faced the same issue.

Here is my code and the fix in case if someone would need it:

  forbiddenNames(control: FormControl): Promise | Observable {
    const promise = new Promise((resolve, reject) => {
      setTimeout(() => {
        if (control.value.toUpperCase() === 'TEST') {
          resolve({'nameIsForbidden': true});
        } else {

          return null;//HERE YOU SHOULD RETURN resolve(null) instead of just null
        }
      }, 1);
    });
    return promise;
  }