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


#1

121221

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


#2

did you found the answer?


#3

Hey guys,

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

Good luck,
Oliver


#4

thank you, i’ll try soon…