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

Answer 1

Finally managed to get it working. Thanks for the input Tomalak!

getValues(help.collectionName, help.docName)
  .then((text) => {
    console.log(text);
    help.message = text;
   })
  .catch((err) => { console.log("Error: ", err); });

function getValues(collectionName, docName) {
  return db.collection(collectionName).doc(docName).get().then((doc) => {
    if (doc.exists) {
      return doc.data().text;
    }
    else {
      return Promise.reject("No such document");
    }});
  }

bot.help((ctx) => ctx.reply(help.message));

Unfortunately, I can not pin-point the exact reason this worked. Some little fixes (missed comma in the console.log) and formatting definitely helped me understanding the structure though. Hope someone else finds this useful, when starting to play around with node and firebase.