Declared

ShipStation has a bug that's been open for 8+ years: when a Shopify order has an ORDER-LEVEL discount (like '20% off you...

The database has 6 tables (called 'models' in Prisma). Session stores Shopify login info. Shop stores each merchant's se...

When Shopify creates or updates an order, it sends a webhook (an HTTP request) to our app. This is the front door — the ...

After an order qualifies, it's dropped into an AWS SQS FIFO queue — think of it as a single-file waiting line. The queue...

The worker is an AWS Lambda function that sits between the queue and the order processor. It reads messages from SQS, ca...

This is the heart of the app — the discount calculator. It takes Shopify's discount information, calculates a ratio (lik...

This is the big boss function — processOrder(). At 1,040 lines, it's the largest file in the codebase. It coordinates th...

The ShipStation client is how we read and write customs data. It handles authentication (Basic auth with encrypted crede...

We use Shopify's GraphQL Admin API to fetch full order details — specifically the discount allocations and line item pri...

After pushing corrected customs values to ShipStation, we read them back via the API and compare what we sent vs what Sh...

The app sends 8 types of email notifications via Resend (an email API service). Error alerts, review needed, plan limit ...

The app has 4 billing tiers: Free (20 orders/month), Starter ($9.99, 100 orders), Growth ($24.99, 500 orders), and Pro (...

The merchant-facing UI is built with Shopify Polaris (their design system) and Remix (a React framework). There are page...

ShipStation API credentials are encrypted with AWS KMS in production (AES-256-CBC locally for development). All routes a...