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

Check this :)

  var doc = firestore.collection('some_collection').doc('some_doc');
  doc.get().then((docData) => {
    if (docData.exists) {
      // document exists (online/offline)
    } else {
      // document does not exist (only on online)
    }
  }).catch((fail) => {
    // Either
    // 1. failed to read due to some reason such as permission denied ( online )
    // 2. failed because document does not exists on local storage ( offline )
  });