Firestore auth, use user UID to doc id with ionic

Question

i'm trying to use user UID for id of a doc when an user is signup.

in service.ts, I have this line :

create_NewStudent(record) {
  return this.firestore.collection('users').add(record);
}

And this is my signup function

signup() {

     this.afAuth.auth
          .createUserWithEmailAndPassword(this.email, this.pass)
          .then( token => {
      console.log(token.user.uid)


    });


    let record = {};
  record['nom'] = this.nom;
  record['prenom'] = this.prenom;
  record['email'] = this.email;
  record['pass'] = this.pass;
  record['datenaissance'] = this.datenaissance;
  record['lieunaissance'] = this.lieunaissance;
  record['adresse'] = this.adresse;
  record['codepostal'] = this.codepostal;
  record['ville'] = this.ville;
  record['tel'] = this.tel;
  record['secu'] = this.secu;
  record['equipe'] = this.equipe;
  record['poste'] = this.poste;
    this.UsersService.create_NewStudent(uid,record).then(resp => {
  this.nom = "";
  this.prenom = "";
  this.email = "";
  this.pass = "";
  this.datenaissance = "";
  this.lieunaissance = "";
  this.adresse = "";
  this.codepostal = "";
  this.ville = "";
  this.tel = "";
  this.secu = "";
  this.equipe = "";
  this.poste = "";
      console.log(resp);
    })

.then(() => {
               this.modalCtrl.dismiss();
              });
  }

For now, when new signup -> it's generate an doc id, but how to use user uid as doc id

Thanks you for help

Answer 1

using add() will create the new document under a randomly generated id. Assuming you have a way to get your user id. You can put it into firestore using

this.firestore.collection('users').doc(uid).set(record);

To get the uid at signup

 signup() {

     this.afAuth.auth
      .createUserWithEmailAndPassword(this.email, this.pass).then( token => {
      console.log(token.user.uid)
 });