db.collection("Groups").whereField("group_members", arrayContains: userId ?? "324").getDocuments() {(groups, error) in if error != nil { print("Error getting documents: \(error!)") } else { }
db.collection("Groups").whereField("group_members", arrayContains: userId ?? "324").getDocuments() {(groups, error) in if error != nil { print("Error getting documents: \(error!)") } else { }