package Ġbr . com . fog li ato . auth service . repository Ċ Ċ import Ġbr . com . fog li ato . auth service . model . User Ċ import Ġorg . springframework . data . jpa . repository . Jpa Repository Ċ import Ġorg . springframework . data . repository . query . Param Ċ Ċ interface ĠUser Repository : ĠJ pa Repository < User , ĠString > Ġ{ ĊĊĠ Ġfun ĠfindBy Username (@ Param (" username ") Ġusername : ĠString ): ĠUser ? Ċ }