Why Redeploying Doesn't Fix the Application Error You See Right After a Deploy
Right after I swapped a secret, every page showed Application error. Stale HTML was calling a JS file that no longer existed. Here are a detection script, a build-version check for the edge cache, and a once-only auto-reload, all run and verified.
A successful payment never tells you what to unlock. Routing four products through one Checkout
Tips, single articles, monthly plans and lifetime access all came back from Stripe looking identical. Here is how I moved entitlement off the amount and onto metadata, and why I now fail closed when the entitlement store goes quiet.
The Three-Minute Video That Kept Failing — Moving Rork's Gemini Uploads Off the Worker
How I rerouted video uploads to the Gemini Files API from a Cloudflare Workers relay to a direct device-to-Google path — why the 128MB isolate limit breaks the relay, how to hand out a resumable upload URL without leaking your API key, what Expo SDK 54 broke on the device side, and how the 20GB project ceiling and media resolution decide the bill.
Building a Rork A/B Testing Platform with GrowthBook and PostHog from Scratch
Drop Firebase and pair GrowthBook with PostHog to ship a production-grade A/B testing stack for your Rork apps. SDK wiring, edge evaluation on Cloudflare Workers, Bayesian statistics interpretation, and the operational pitfalls I learned the hard way.
Sign in with Apple in Rork: Server-Side Verification, Account Linking, and the Mandatory Deletion Flow
A Sign in with Apple button that only lives on the client tends to fray on the server before it ever fails review. This guide builds the rest on Cloudflare Workers: a server-issued nonce, ID token verification, prompt authorizationCode exchange, an account deletion flow that revokes properly, and Apple's server-to-server notifications.
Rork × AI Moderation Production Guide: Reporting, Auto-Review, and Tiered Sanctions for UGC Apps
A complete production-grade guide to layering AI moderation, reporting, and tiered sanctions into your Rork UGC app. Includes a working three-layer pipeline using OpenAI Moderation, Perspective API, and Cloudflare Workers Queues.
Usage-Based Billing for Rork AI Apps with Stripe Meter — Charge by API Calls and Tokens, Not Flat Rates
Implement usage-based billing in your Rork AI app with Stripe Meter — meter setup, Cloudflare Workers reporting, retry queues, event aggregation, and how to choose between metered billing and prepaid credits.
Outgrowing RevenueCat: A Self-Hosted Guide to App Store Server Notifications V2 for Rork Apps
A complete implementation guide for receiving App Store Server Notifications V2 in Cloudflare Workers without RevenueCat — covering JWS verification, idempotent state updates, user binding, and production testing for Rork apps.
Cutting App Store Review Replies From 32 Minutes a Day to 8 — App Store Connect API × Gemini × Cloudflare Workers in Production
Field notes on an AI-drafted, human-approved review reply pipeline: why 0.85 became my confidence threshold, JWT clock-skew workarounds, and Crashlytics-driven reply branching, with three months of measured numbers.
Verifying StoreKit 2 Signed Transactions in a Cloudflare Worker
If you trust whatever the device says about its purchase state, a tampered entitlement walks right through. This walks through verifying StoreKit 2 signed transactions (JWS) in a Cloudflare Worker so you grant entitlements without trusting the client, with working code.
Answering a Refund Request Within 12 Hours: Handling CONSUMPTION_REQUEST in Cloudflare Workers
How to receive the App Store CONSUMPTION_REQUEST notification for your Rork subscription app in Cloudflare Workers and respond to the Send Consumption Information API within 12 hours — with field-by-field mapping and the operational judgment behind it.
Don't Pay Out a Rewarded Ad on the Client's Word Alone — SSV Verification for a Rork (Expo) App on a Worker
Trusting the client-side 'reward earned' callback alone invites double-grants and spoofing. Here is how to wire AdMob server-side verification (SSV) into a Rork-generated Expo app, verify the signed callback on a Cloudflare Worker, and make payouts idempotent with transaction_id.