How to get firebase firestore generated id

Question

i had an issue where i would like to generate the unique id without sending any data. Below is my code of getting the id, but i would like to get it before i could send the actual data to the database

var getUniqueId = firetoreDB.collection("collction").add({
  data: "data"
}).then(function (doc) {
  console.log(doc.id);
}).catch(function (error) {
  console.log(error);
});

The above code gets me the id but i wanted to get it without out sending a test data to the database

Answer 1

Try this

firetoreDB.collection("collection").doc().id