# Firebase auth + nickname! **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [January 22, 2020, 2:38pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498 "2020-01-22T14:38:42Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![alfopietro](https://avatars.discourse-cdn.com/v4/letter/a/df705f/32.png) [@alfopietro](https://community.thunkable.com/u/alfopietro)\ **Post date:** [January 22, 2020, 2:38pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/1 "2020-01-22T14:38:42Z")
Hi guys, I successfully followed all tutorials on how to implement a Firebase login/sign-in functionality in my app. What I can’t find so far is how to identify users by a nickname instead of email. I mean, during the registration process (also in a second step if not possible during the registration) I want let users choosing a unique nickname too (check if already taken) associated to their email. Once logged in, users will insert a set of data (like preferred books in a AirTable db) and the tricky part is that I need to query all rows… displaying their public nickname instead of email! If you need clarification please feel free to contact me! I really need help to go ahead with a project. ---
**Author:** ![jared](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jared/32/138473_2.png) [@jared](https://community.thunkable.com/u/jared)\ **Post date:** [January 22, 2020, 3:12pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/2 "2020-01-22T15:12:43Z")
Follow! I would love to know how to have user specific names in addition to the use of emails. Using emails may discourage users from publicly posting data in my app. I want to create a study app for students who may not want other students to know their scores. Using usernames allows for anonymity while allowing for public competition and goal setting. ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [January 22, 2020, 4:00pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/3 "2020-01-22T16:00:04Z")
Could you just have 2 columns for this? Use the email for the look-ups and just display the nickname to the end user? Thanks. ---
**Author:** ![jared](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jared/32/138473_2.png) [@jared](https://community.thunkable.com/u/jared)\ **Post date:** [January 22, 2020, 4:35pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/4 "2020-01-22T16:35:25Z")
What if two users have the same username. On a leaderboard this wouldn’t work so well. I want to have anonymous but public leader boards. ie using a pseudonym or unique username vs their personal email to compete against everybody without knowing who anybody is. ---
**Author:** ![Daniel\_Coglitore](https://avatars.discourse-cdn.com/v4/letter/d/e8c25b/32.png) [@Daniel\_Coglitore](https://community.thunkable.com/u/Daniel_Coglitore)\ **Post date:** [January 22, 2020, 4:43pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/5 "2020-01-22T16:43:36Z")
is simple! every time a user choose his nickname you save it on a list and later when other user is choosing his nickname you check If the nickname is already taken by other user , you’ll have to get all the nicknames and then check with the block "does list contain “users nickname” ? if not then save it ---
**Author:** ![alfopietro](https://avatars.discourse-cdn.com/v4/letter/a/df705f/32.png) [@alfopietro](https://community.thunkable.com/u/alfopietro)\ **Post date:** [January 22, 2020, 8:22pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/6 "2020-01-22T20:22:13Z")
Is it possible in Firebase or where ? I can’t understand how to register a new user with 2 fields: email and nickname. Do you mean a solution like this or some other way ? ---
**Author:** ![alfopietro](https://avatars.discourse-cdn.com/v4/letter/a/df705f/32.png) [@alfopietro](https://community.thunkable.com/u/alfopietro)\ **Post date:** [January 22, 2020, 8:25pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/7 "2020-01-22T20:25:38Z")
It isn’t just a matter of store a list of nickname and check if already exist one. The problem is to match email-nickname during the registration process. Or maybe I didn’t understand your answer? if could in case explain it better. ---
**Author:** ![jane](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jane/32/27575_2.png) [@jane](https://community.thunkable.com/u/jane)\ **Post date:** [January 22, 2020, 11:06pm UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/8 "2020-01-22T23:06:18Z")
Hi @alfopietro, There would be 2 aspects involved in adding a username to a user’s account: handling sign-ups and handling sign-ins. Let’s assume that you are storing your users’ emails and usernames in a spreadsheet. When a new user signs up: As @Daniel_Coglitore said, you first need to check if their username is taken. If it is, ask them to enter a different username. If it is not, sign the user up and add the user’s email and username to your spreadsheet. ![usernamesignup](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/3/237a6ffbc64f2f61d0619fae63bf40ad73cc59b4.png) When a returning user signs in: Get the index of the first instance of their email address in your spreadsheet. Get the value from the ‘username’ column of this spreadsheet. Display this value in your app. ![usernamesignin](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/b/3bc5053c50081d9db5ef05867d6e995a7e0df927.png) ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [November 8, 2024, 11:45am UTC](https://community.thunkable.com/t/firebase-auth-nickname/421498/9 "2024-11-08T11:45:57Z")