How to add more keys to session with next auth

how do i add more keys to the session which next auth creates thank you

2 Replies

Xaohs•2y ago

You can extend the default types of next auth by declaring a .d.ts file. Something like this which is also used in t3stack iirc:

declare module "next-auth/jwt" {
  /** Returned by the `jwt` callback and `getToken`, when using JWT sessions */
  interface JWT {
    id: string;
  }
}

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

  /** Passed as a parameter to the `jwt` callback */
  interface User {
  }
}

declare module "next-auth/jwt" {
  /** Returned by the `jwt` callback and `getToken`, when using JWT sessions */
  interface JWT {
    id: string;
  }
}

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

  /** Passed as a parameter to the `jwt` callback */
  interface User {
  }
}

You can then assign these values at the callbacks in your [...nextauth].ts. Of course you should also add these params to your db

shu•2y ago

do u perhaps have a code base which uses this technique that i could reference? would be big help. even if not, thank you for the solution. thank you, i figured it out!

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How to add more keys to session with next auth