we are struggling with adding a new item into an array. We have a process where user is presented with a few options (each option each line and also a separate document in Firestore Database). If that user chooses one of them, we have an array of user_uid for each document and we need to add the current user’s uid as a new item into that array. But however we are unable to find a working solution.
Scheme: Each document has an array where we wanna store user’s uids. Each document’s field name represents a title of an option. By clicking on the option we want to add a field into an array of users.
Thank you very much.