How to check if a username(display name) already exists in firebase users

[maxvortex]

I wanna check if a displayname already exists among other previously registered users. How can I do that?

[yudha_ditya]

did you found the answer?

[odorakel]

Hey guys,

please check this post: https://stackoverflow.com/questions/44435991/firebase-check-if-users-displayname-username-is-unique

Good luck,
Oliver

[yudha_ditya]

thank you, i’ll try soon…