fix(ts): adjust properties on default interfaces (#1794)

* fix(ts): adjust properties on default interfaces

* fix(ts): make expires also optional

* fix(ts): don't require default session/jwt fields

* fix(ts): make all default fields optional

Author: balazsorban44

types/index.d.ts

@@ -364,6 +364,15 @@ export interface PagesOptions {
   newUser?: string
 }
 
+export interface DefaultSession extends Record<string, unknown> {
+  user?: {
+    name?: string | null
+    email?: string | null
+    image?: string | null
+  }
+  expires?: string
+}
+
 /**
  * Returned by `useSession`, `getSession`, returned by the `session` callback
  * and also the shape received as a prop on the `Provider` React Context
@@ -373,11 +382,7 @@ export interface PagesOptions {
  * [`Provider`](https://next-auth.js.org/getting-started/client#provider) |
  * [`session` callback](https://next-auth.js.org/configuration/callbacks#jwt-callback)
  */
-export interface Session extends Record<string, unknown> {
-  user?: User
-  accessToken?: string
-  expires: string
-}
+export interface Session extends Record<string, unknown>, DefaultSession {}
 
 /** [Documentation](https://next-auth.js.org/configuration/options#session) */
 export interface SessionOptions {

types/jwt.d.ts

@@ -1,16 +1,19 @@
 import { JWT as JoseJWT, JWE } from "jose"
 import { NextApiRequest } from "./internals/utils"
 
+export interface DefaultJWT extends Record<string, unknown> {
+  name?: string | null
+  email?: string | null
+  picture?: string | null
+  sub?: string
+}
+
 /**
  * Returned by the `jwt` callback and `getToken`, when using JWT sessions
  *
  * [`jwt` callback](https://next-auth.js.org/configuration/callbacks#jwt-callback) | [`getToken`](https://next-auth.js.org/tutorials/securing-pages-and-api-routes#using-gettoken)
  */
-export interface JWT extends Record<string, unknown> {
-  name?: string | null
-  email?: string | null
-  picture?: string | null
-}
+export interface JWT extends Record<string, unknown>, DefaultJWT {}
 
 export interface JWTEncodeParams {
   token?: JWT