// pages/api/auth/[...nextauth].ts
import NextAuth from "next-auth"
import AzureAD from "next-auth/providers/azure-ad"

// this can be in `next-auth/providers/azure-ad`
interface AzureADAccount {
  ext_expires_in: number
}

declare module "next-auth" {
  interface Account extends AzureADAccount {}
}


export default NextAuth({
  providers: [
    AzureAD({
      ...
      // this would show a type error, because we required `ext_expires_in`
      account({ ext_expires_in, ...a }) {
        return a
      }
      // account: "minimal" // conversely, we can also only allow the most common properties
    })
  ]
})