You will get a Stripe payment release gate with 12 lifecycle tests and fixes


Project details
Prove the whole subscription lifecycle changes the right customer state before you accept real payments, not only that Stripe returned a successful event.
I will test one existing Stripe subscription flow across 12 normal, failure and retry scenarios, tracing events through your webhook, backend, database and the access the customer sees. Up to three scoped defects are corrected, then the matrix is executed again.
You receive a client-ready Evidence Pack with pass/fail/not-tested results, before-and-after proof, changed files and residual risk. Work begins in Stripe Test Mode or staging; production credentials are not required.
Scope: one subscription lifecycle, 12 scenarios, one product, plan, application and staging environment, and up to three scoped fixes.
Not included: a full application rewrite or unrelated bugs; multiple products, plans, environments or applications; Stripe Connect marketplace architecture or payout compliance; penetration testing, PCI certification or legal advice; guaranteed production approval or a claim that no untested defect exists; production deployment unless purchased separately.
Introductory price available for the first five projects.
I will test one existing Stripe subscription flow across 12 normal, failure and retry scenarios, tracing events through your webhook, backend, database and the access the customer sees. Up to three scoped defects are corrected, then the matrix is executed again.
You receive a client-ready Evidence Pack with pass/fail/not-tested results, before-and-after proof, changed files and residual risk. Work begins in Stripe Test Mode or staging; production credentials are not required.
Scope: one subscription lifecycle, 12 scenarios, one product, plan, application and staging environment, and up to three scoped fixes.
Not included: a full application rewrite or unrelated bugs; multiple products, plans, environments or applications; Stripe Connect marketplace architecture or payout compliance; penetration testing, PCI certification or legal advice; guaranteed production approval or a claim that no untested defect exists; production deployment unless purchased separately.
Introductory price available for the first five projects.
Programming Languages
JavaScript, TypeScriptWhat's included $359
These options are included with the project scope.
$359
- Delivery Time 5 days
- Number of Revisions 1
Optional add-ons
You can add these on the next page.
Additional plan using the same architecture
(+ 1 Day)
+$85
Additional test environment
(+ 2 Days)
+$100
Production deployment support after passing tests
(+ 1 Day)
+$120Frequently asked questions
About David
Stripe & Supabase Expert - Webhooks, Subscriptions, Fast Fixes
Carino, Spain - 8:14 pm local time
What I handle:
- Bug fixes: Flutter/Dart apps, Python scripts, JS/TS, REST APIs
- Backends: Cloudflare Workers, D1, Supabase, Stripe integrations
- Automation: web scrapers, data processing, API integrations, bots
- Trading tech: MQL4/MQL5 Expert Advisors and indicators (MT4/MT5)
How I work:
1. You describe the problem (repo access or code snippet helps)
2. I confirm scope and a fixed price - no hourly meters running
3. You get the fix + a short video showing it working
4. You approve when satisfied. That's it.
Working languages: English, Spanish, Galician. I'm also happy to handle all written communication in German, French, Italian, Portuguese or most other European languages - whatever is most comfortable for you.
I keep scope tight and communication fast (responses within the hour, European timezone). If I can't fix it, I tell you upfront - no wasted time.
Steps for completing your project
After purchasing the project, send requirements so David can start the project.
Delivery time starts when David receives requirements from you.
David works on your project following the steps below.
Revisions may occur after the delivery date.
Define the release matrix
Map the selected product, plan, event types, stored states and expected customer outcomes.
Execute 12 lifecycle scenarios
Run the normal path, failure paths, duplicate events, retries and state transitions that apply to the agreed subscription.


