add: using nextauth WIP

types/next-auth.d.ts

@@ -0,0 +1,28 @@
+import NextAuth, { DefaultSession, DefaultJWT, DefaultUser } from "next-auth";
+import { JWT } from "next-auth/jwt";
+
+declare module "next-auth" {
+    interface Session extends Omit<DefaultSession, 'user'> {
+        user: {
+            id: number;
+            firstName: string;
+            lastName: string
+            isTeacher: boolean;
+        };
+    }
+    interface User {
+        id: number;
+        firstName: string;
+        lastName: string
+        isTeacher: boolean;
+    }
+}
+
+declare module "next-auth/jwt" {
+    interface JWT {
+        userId: number;
+        firstName: string;
+        lastName: string
+        isTeacher: boolean;
+    } 
+}