Kashish

Developer

[Kashish @Ajwasalive]

@soham_nayak04 Hey @soham_nayak04 , let's connect @Ajwasalive

[Kashish @Ajwasalive]

@Gaurav_dev01 @X Hello, let's connect!

[Kashish @Ajwasalive]

@Rizzzhiii Let's connect, what're you currently working on?

[Kashish @Ajwasalive]

@_saniyak_09 Let's connect.

[Kashish @Ajwasalive]

Code: https://t.co/Przrt3T9iY
Live: https://t.co/6kHzNIZ6VN

#buildinpublic #webdev #typescript #react #nodejs #mongodb #postgresql #security #fullstack

[Kashish @Ajwasalive]

Most JWT refresh token implementations have a silent bug.
You delete the old token, then save the new one.
Two DB writes. Server crashes between them?
Old token is gone. New token is never saved.
The user is permanently logged out — no error, no log, nothing.
Here’s the fix 🧵

[Kashish @Ajwasalive]

I hit all of this while building TaskFlow to practice “production‑grade” full‑stack work:

MERN + TS + Redux Toolkit + TanStack Query
- Stateless JWT auth with access/refresh, rotation, HttpOnly cookies
Rate‑limited auth routes, protected routes, dark mode, Docker, CI, etc

[Kashish @Ajwasalive]

This also fixes a nasty race:

Two requests hit /auth/refresh with the same token:

naive: both read “valid”, both delete, both insert → one in, two out

fixed:

Mongo: second findOneAndUpdate → null → 401

Prisma: second delete has count === 0 → 401

Only one refresh wins.

[Kashish @Ajwasalive]

@thepoonam0914 Mac for work, windows for 🎮

[Kashish @Ajwasalive]

@imdevPU23 Let's connect

[Kashish @Ajwasalive]

@connor1 https://t.co/70yhnlcQwL

[Kashish @Ajwasalive]

@thepoonam0914 Let's connect

[Kashish @Ajwasalive]

Currently @bitsgoa has allowed for no exam policy if the student wishes for it and here we are being forced , this is truly unjust to more than 30000 students of this university, all they care about is reputation and money , nothing else. - 4
@ugc_india @PMOIndia @SRM_Univ

[Kashish @Ajwasalive]

are openly saying that you guys are getting too many marks , maybe it's better to simply kill you, you won't even need oxygen, medicines -2 @SRM_Univ @sunnewstamil @RaviPachamuthu @DrRPNishank @EduMinOfIndia @ugc_india @htTweets #srmthinkforstudents #srmiteagainsttimer

[Kashish @Ajwasalive]

First the pressure of fees, then came a barrage of insurmountable assignments/projects and now exams , where faculties - 1
@SRM_Univ @sunnewstamil @RaviPachamuthu @DrRPNishank @EduMinOfIndia @ugc_india @htTweets #srmthinkforstudents #srmiteagainsttimer

[Kashish @Ajwasalive]

Why do they want to kill us, isn't covid enough?
@SRM_Univ @sunnewstamil @RaviPachamuthu @DrRPNishank @EduMinOfIndia @ugc_india @htTweets #srmthinkforstudents @ugc_india