Homepage.ts

onLoginSuccess(res: FacebookLoginResponse) {
  const { token } = res;
  const credential = firebase.auth.FacebookAuthProvider.credential(res.authResponse.accessToken);
  this.fireAuth.auth.signInWithCredential(credential)
    .then((response) => {
      console.log(response);
      this.router.navigate(["/profile"]);
      this.loading.dismiss();
    })
}