What's the best way to check if a Firestore record exists if its path is known?

Question

Given a given Firestore path what\'s the easiest and most elegant way to check if that record exists or not short of creating a document observable and subscribing to it?

Answer 1

Depending on which library you are using, it may be an observable instead of a promise. Only a promise will have the 'then' statement. You can use the 'doc' method instead of the collection.doc method, or toPromise() etc. Here is an example with the doc method:

let userRef = this.afs.firestore.doc(`users/${uid}`)
.get()
.then((doc) => {
  if (!doc.exists) {

  } else {

  }
});

})

Hope this helps...