Session Variables are undefined after saving them "session-express" - node.js

Question

I'm following a tutorial for Ben Awad and i'm trying to set a userId in an express session after the user logs in to save the cookies in the browser. But when i check the req.session.userId its always undefined.
this is my index.ts
`
const RedisStore = connectRedis(session);
const redis = new Redis({
port: 6379,
host: "127.0.0.1",
});
redis.on("connect", () => console.log("Redis redisClient Connected"));
redis.on("error", (err) => console.log("Redis Client Connection Error", err));
app.use(
session({
name: "SessionID",
store: new RedisStore({
client: redis,
disableTouch: true,
}),
cookie: {
maxAge: 1000 * 60 * 60 * 24 * 365 * 10, //10 years
httpOnly: true,
sameSite: "lax",
domain: _prod_ ? ".codeponder.com" : undefined,
secure: _prod_, // cookie only works in https
},
secret: "adsadafasdasdasfasfdasda",
resave: false,
saveUninitialized: true,
})
);
const apolloServer = new ApolloServer({
schema: await buildSchema({
resolvers: [PostResolver, UserResolver],
validate: false,
}),
context: ({ req, res }): MyContext => ({ em: orm.em, res, req, redis }),
});
await apolloServer.start();
apolloServer.applyMiddleware({
app,
cors: {
credentials: true,
origin: ["http://localhost:3000", "https://studio.apollographql.com"],
},
});
app.listen(4000, () => {
console.log("server started on localhost:4000");
});
};
`
and when i try to save the userId in the login. Here when i log the req.session after assigning it to the user.id i can see it working
`
#Mutation(() => UserResponse)
async login(
#Arg("options") options: UsernamePasswordInput,
#Ctx() { em, req }: MyContext
): Promise<UserResponse> {
const user = await em.findOne(User, { username: options.username });
if (!user) {
return {
errors: [
{
field: "username",
message: "that username doesnt exist",
},
],
};
}
const valid = await argon2.verify(user.password, options.password);
if (!valid) {
return {
errors: [
{
field: "password",
message: "incorrect password",
},
],
};
}
req.session.userId = user.id;
console.log("req.>>", req.session);
req.session.save(() => {
console.log("saved");
});
return { user };
}
}
`
But when i check if the user is logged in or not from this function. req.session.userId is always undefined and not saved in the session
`
#Query(() => User, { nullable: true })
async me(#Ctx() { req, em }: MyContext) {
console.log("req", req.session);
if (!req.session.userId) {
return null;
}
const user = await em.findOne(User, { id: req.session.userId });
return user;
}
`
i tried upgrading/downgrading the packages. Checked my redis connection. Nothing seem to work