Firebase/Firestore useful snippets

firebase-snippet.js

// delete all users from the auth console
module.exports.deleteUsers = async (req, res) => {
  return admin
    .auth()
    .listUsers()
    .then((result) => {
      const markedForDelete = [];
      result.users.forEach((user) => {
        markedForDelete.push(user.uid);
      });
      return admin.auth().deleteUsers(markedForDelete);
    })
    .catch((error) => error);
};