Refactored schema and added link model.

pages/api/auth/[...nextauth].ts

@@ -14,7 +14,7 @@ export const authOptions: AuthOptions = {
       credentials: {},
       async authorize(credentials, req) {
         const { email, password } = credentials as {
-          id: string;
+          id: number;
           email: string;
           password: string;
         };
@@ -50,7 +50,7 @@ export const authOptions: AuthOptions = {
   },
   callbacks: {
     session: async ({ session, token }) => {
-      session.user.id = token?.sub;
+      session.user.id = parseInt(token?.sub as any);
 
       return session;
     },

pages/api/auth/register.ts

@@ -38,16 +38,9 @@ export default async function handler(
         email: body.email,
         password: hashedPassword,
         collections: {
-          create: [
-            {
-              role: "owner",
-              collection: {
-                create: {
-                  name: "First Collection",
-                },
-              },
-            },
-          ],
+          create: {
+            name: "First Collection",
+          },
         },
       },
     });