node.js - Get async value from firestore

Question

I am struggling with async operations. I am trying to simply get a value from firestore and storing it in a var.

I manage to receive the value, I can even save it in the var when I do that specifically (use the var within the get function) but I don't seem to manage the await properly when trying to save this in a flexible way:

async function getValues(collectionName, docName,) {
console.log("start")
var result;
var docRef = await db.collection(collectionName).doc(docName).get()
  .then(//async// (tried this as well with async) function (doc) {
    if (doc.exists) {
      console.log("Document data:", doc.data());
      result = doc.data().text;
      console.log(result);
      return //await// (this as well with async) result;
    } else {
      // doc.data() will be undefined in this case
      console.log("No such document!");
      result = "No such document!";
      return result;
    }
    console.log("end");
  }).catch (function (err) {
    console.log('Error getting documents', err);
  });
};

helpMessage = getValues('configuration','helpMessage');

Note: doc.data().text -> "text" is the name of the field where my value is stored in. Do I have to use .value here?

The result I get in the console is:

info: Document data: { text: 'The correct text from the database' }
info: The correct text from the database

But using helpMessage in my code I get

{}

Image from the Telegram bot where I am trying to use the helpMessage as a response to the '/help' command.

I have checked: getting value from cloud firestore, Firebase Firestore get() async/await, get asynchronous value from firebase firestore reference and most importantly How do I return the response from an asynchronous call?. They either deal with multiple documents (using forEach), don't address the async nature of my problem or (last case), I simply fail to understand the nature of it.

Additionally, both nodejs and firestore seems to be developing rapidly and finding good, up-to-date documentation or examples is difficult. Any pointers are much appriciated.

Answer 1

Waitting for answers