Your payment or RLS integration is stuck.
I unblock it — in 48 hours.

Google and Stack Overflow answers don't fit your codebase. This is a hands-on, done-for-you fix: send me your repo + the exact error, and you get a working, verified patch in your stack — with a root-cause explanation and a go-live checklist you can hand to a client.

  • iyzico (1007 / 1009 / invalid signature, PayWithIyzico null, 3DS loops)
  • PayTR (hash mismatch, callback not marking paid, production go-live)
  • Stripe (webhook verification, idempotency, subscription lifecycle)
  • Supabase RLS ("permission denied", cross-tenant data leaks, missing policies)
Fix my integration — $79 How it works

Be the first to review No reviews yet — be the first Read-access only. No secrets.

Payment and compliance integration fix: iyzico, PayTR, Stripe, Supabase RLS
delivery
patch + explanation + go-live checklist

Delivery

48 hours

Access

read-only, no secrets

Follow-up

2 rounds included

Output

working diff

One-time

no monthly fee

Refund

Gumroad 30-day policy

The deliverable

What you get by the 48-hour mark

✅ A working, verified patch

Applied to your repo (link or zip, read access only) and tested against the exact error you sent — not a generic snippet.

✅ Root-cause explanation

Written for your stack: why the signature/hash/callback failed, and what changed so it won't silently break again.

✅ Go-live checklist

Test mode → live mode, callback URL, signature verification, and the one edge case that burns every team at launch.

✅ Security notes for YOUR code

Amount tampering, IDOR, auth/RLS gaps specific to your integration — the things Stripe/iyzico docs don't warn you about.

How it works

Three steps. No ongoing commitment.

the-fix 
1. Buy — then email your repo link/zip + the exact error + target: test or live.
2. I reproduce, patch, and reply within 48h:
   diff + root-cause explanation + go-live checklist.
3. You test. If anything still fails, I keep helping — 2 follow-up rounds included.

One-time price. No monthly fee. Pay once, get unblocked.

Common issues

If you've hit one of these, this is for you

iyzico

  • Error 1007 / 1009 / invalid signature — IYZWSv2 auth header generated wrong
  • PayWithIyzico returns null on callback
  • 3DS redirect loops / never returns to your page
  • Double JSON.stringify silently breaking the hash

PayTR

  • Callback signature mismatch (hash_str order)
  • Callback doesn't mark the order paid
  • Production go-live blocked on settings / IP / test-mode rules
  • Orders lost because the handler returns OK too early

Stripe

  • Webhook signature verification fails (express.json() body trap, raw-body fix)
  • Fail-open handler when STRIPE_WEBHOOK_SECRET is unset
  • Idempotency / duplicate events / subscription lifecycle

Supabase RLS

  • "Permission denied" / new row violates RLS
  • Cross-user / cross-tenant data leaks (USING(true), missing policies)
  • Service-role key and read-only delegation audit

Straight talk

Before you buy — so there are no surprises

✅ How I get access

Repo link or zip, read access only. I never need your API secret, production key, or service_role key to fix something — if I do, that's the red flag, not the answer.

❌ What I won't do

No pretending to "configure" your live merchant account for you, no legal advice, no writing a whole app from scratch. This is a targeted fix for a stuck integration.

FAQ

Sık sorulanlar · Frequently asked

Dili ne? / What language?

Hatasız Türkçe veya English — siz seçin. Reports and code comments match your codebase. / Your pick: Turkish or English.

Sırlarımı / secret'larımı güvende mi?

İş için yalnızca read-only erişim isterim; API anahtarları talep etmem ve gönderilirse kullanmam. / Read-only repo access only. Never send or expose live keys.

48 saat yetmezse / What if 48h isn't enough?

2 takip turu dahil. Scope netleşmeden durmam — önce kök nedeni, sonra patch. / 2 follow-up rounds are included; I don't stop on an edge case before root-causing it.

İade / Refund?

Gumroad 30 gün politika. Teslim edilmiş bir patch'i neden geri istediğini birlikte görüşürüz. / Gumroad's 30-day policy applies.

One-time, done-for-you

Stop reading — get it fixed

You've already spent days. One payment, working patch, root-cause explanation, and a go-live checklist you can hand to a client. Delivery within 48 hours.

Payment & Compliance Integration Fix

$79

One-time · 48h delivery · 2 follow-up rounds included

I want this!

Be the first to review
No reviews yet — be the first
Read-access only · No monthly fee · Gumroad 30-day refund policy