import NextAuth from "next-auth" ; import Providers from "next-auth/providers" ; export default NextAuth ( { providers : [ Providers . Credentials ( { name : "Personal Data" , credentials : { username : { label : "Username" , type : "text" , placeholder : "username" } , password : { label : "Password" , type : "password" } , } , async authorize ( credentials , req ) { let user = null ; const users = process . env . CREDENTIALS . split ( "|" ) . map ( ( userCreds ) => { const [ username , password ] = userCreds . split ( ":" ) ; return { username : username . trim ( ) , password : password . trim ( ) } ; } ) ; user = users . find ( ( { username , password } ) => username . toLowerCase ( ) === credentials . username . toLowerCase ( ) && password === credentials . password ) ; if ( user ) { return { name : user . username } ; } return null ; } , } ) , ] , } ) ;