How to get a specific field from a firestore collection?

Question

My project has a collection of posts, and a collection of profiles. Each document in the profile collection has a field that contains a username. I need to get that username and include it in the post when it is displayed on the page. I feel like there should be an easy answer to this, but I've been going in circles trying to use different queries and firebase methods.

Answer 1

use the get() function

Answer 2

This page https://firebase.google.com/docs/firestore/query-data/get-data is where you probably want to look. There are some examples that you should be able to alter to meet your needs.