java - How to Add/Update/Remove array elements in firebase firestore android using Hashmap? A Store Database

Question

I want to make a collection of users, users will have multiple stores as documents, each document have fields like storeName, storeAddress and availableProducts. My question is that how to manage availableProducts array? I know Firestore can't handle arrays, I should use HashMap. My available products may have field like product name, product price etc. I am new in Firebase, how can I manage availableProduct array using java in Android Studio?

FireBase Firestore DataBase Image

Answer 1

Waitting for answers