How to get a document from firestore in cloud functions

I’ve tried many methods such as

const admin = require("firebase-admin");
admin.initializeApp();

const db = admin.firestore();

const docRef = db.collection("users").doc(dynamicDocID).get()
const docRef = db.collection("users").doc(dynamicDocID)

as well as many other and keep getting undefined or a promise that never seems to be resolved

Cant seem to find proper docs on this if anything

Answers:

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Method 1

Since Cloud Functions for Firebase are written in Node.js, have a look at the Node.js examples in the Firestore documentation.

Based on that:

const docRef = db.collection("users").doc(dynamicDocID)
const document = await docRef.get()
console.log(document.id, document.data())

Or if you can’t use await:

const docRef = db.collection("users").doc(dynamicDocID)
return docRef.get().then((document) => {
  console.log(document.id, document.data())
})

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0