firestore.rules

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /users/{userId} {
      allow write: if
          request.auth != null && request.auth.uid == userId;
      allow read: if request.auth != null;
    }
    match /chats/{chat} {
      allow read, write: if resource.data.members[0] == request.auth.uid || resource.data.members[1] == request.auth.uid;
    }
    match /chats/{chat}/messages/{message} {
      allow update: if resource.data.senderId != request.auth.id;
      allow create: if request.auth != null;
    }
    match /conversations/{conversation=**} { // ! This line ensures that the chattou-v1 application continues to work while I finish v2, since I am using the same firestore.
    	allow write,read: if request.auth !=null;
		}
  }
}