next-auth session callback not recognizing new user property

I updated the User schema in schema.prisma like this:

model User {
  id               String    @id @default(cuid())
  name             String?
  email            String?   @unique
  emailVerified    DateTime?
  image            String?
  accounts         Account[]
  sessions         Session[]
  stripeCustomerId String?
}

model User {
  id               String    @id @default(cuid())
  name             String?
  email            String?   @unique
  emailVerified    DateTime?
  image            String?
  accounts         Account[]
  sessions         Session[]
  stripeCustomerId String?
}

and next-auth.d.ts

declare module "next-auth" {
    /**
     * Returned by `useSession`, `getSession` and received as a prop on the `SessionProvider` React Context
     */
    interface Session {
        user?: {
            id: string;
            stripeCustomerId: string;
        } & DefaultSession["user"];
    }
}

declare module "next-auth" {
    /**
     * Returned by `useSession`, `getSession` and received as a prop on the `SessionProvider` React Context
     */
    interface Session {
        user?: {
            id: string;
            stripeCustomerId: string;
        } & DefaultSession["user"];
    }
}

then inside [...nextauth].ts I have this:

    callbacks: {
        session({ session, user }) {
            if (session.user) {
                session.user.id = user.id;
                session.user.stripeCustomerId = user.stripeCustomerId;
            }

            return session;
        },
    },

    callbacks: {
        session({ session, user }) {
            if (session.user) {
                session.user.id = user.id;
                session.user.stripeCustomerId = user.stripeCustomerId;
            }

            return session;
        },
    },

The user.id works fine and it isn't complaining. but user.stripeCustomerId is... I have tried: 1. Restarting TS server. 2. npx prisma generate 3. Restart VS code Please let me know if you have stumbled upon this / know what the problem is. I am able to console.log(user.stripeCustomerId) so I know it is working.

3 Replies

amanuelOP•2y ago

I added this to my next-auth.d.ts as temporary solution, but is this correct?

    interface User extends DefaultUser {
        stripeCustomerId: string;
    }

    interface User extends DefaultUser {
        stripeCustomerId: string;
    }

BarisP•2y ago

I am not sure if it's because you made it optional in the prisma model but not on the type like | null or some other thing but that's how I done the thing at the time, I am open for improvement suggestions

Lopen•2y ago

most times all you need is to just restart your vscode

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next-auth session callback not recognizing new user property