How to generate typescript types for third-party sdk integration
- Step 1Capture a real SDK response or webhook payload — Call the SDK method and log the full response object, or capture a webhook payload from a test delivery. Stringify to JSON: console.log(JSON.stringify(response, null, 2)).
- Step 2Generate the TypeScript interface — Paste the JSON and convert. For complex Stripe objects with nested charges, line items, and metadata, the generator produces named interfaces for each nested object.
- Step 3Name the interfaces to match the SDK domain — Rename generated interfaces to match the SDK's naming: StripePaymentIntent, ShopifyOrder, TwilioMessageCallback. Use domain-specific names rather than the generator's generic names.
- Step 4Use for webhook handler typing — Type your webhook handler: export async function POST(request: Request) { const payload: StripeWebhookEvent = await request.json(); switch (payload.type) { case 'payment_intent.succeeded': ... } }.
Frequently asked questions
Should I use generated types or Stripe's official @types/stripe package?+
Use the official @types/stripe (or @stripe/stripe-js) for the main API client types — these are maintained by Stripe and cover the full SDK. Use this tool for specific webhook payload shapes or response sub-objects where you need a precise type for a specific field subset, or when the official types are more general than your usage requires.
How do I handle Stripe's metadata object which is Record<string, string>?+
The generated type will show metadata as an object with whatever specific keys are in the sample payload. Replace the generated specific type with { [key: string]: string } or Record<string, string> to accurately represent Stripe's metadata type which allows arbitrary string keys.
Is the SDK response data transmitted to JAD Apps?+
No. Conversion runs entirely in your browser. SDK responses, webhook payloads, and customer identifiers are never transmitted to JAD Apps servers.
Privacy first
Conversion runs locally in your browser. No file is uploaded — only metadata counters are saved for signed-in dashboard stats.