Make your app do things on its own.

The three workflows

Copy button in the slides, or download the file here. In n8n: Create workflow, then Ctrl+V on the canvas, or menu (three dots) → Import from file.

• Workflow 1 · order confirmationWebhook → Edit Fields → Respond. Build it yourself, or import it to compare.Download
• Workflow 2 · the supplierWebhook → HTTP Request (TheMealDB) → IF: two paths → Edit Fields → Respond. Six boxes, no key needed.Download
• Workflow 3 · Lovable confirmationWebhook → Edit Fields → Respond, no AI and no key. Connect your Lovable app to the webhook address.Download

Two more building blocks

• Schedule digestEvery morning at 8: fetch something, format it, mail it. The clock trigger (cron).Download
• Webhook to Google SheetEvery form submit becomes a row. Waitlist, feedback, orders.Download

The Lovable prompt (Workflow 3)

Replace the URL with the Production URL of your Webhook box.

Build a single-page app "Order at the counter": a card with three fields, name, main dish, drink, and a button "Order". When the button is clicked, send the form as JSON { "name": ..., "main": ..., "drink": ... } to https://YOUR-WORKSPACE.app.n8n.cloud/webhook/confirm with header Content-Type: application/json, and show the field "answer" from the reply below the card. Dark background, one accent colour, no login, no database.

Suppliers that need no key

• themealdb.comRecipes. Menu sections: /api/json/v1/1/list.php?c=list, dishes: filter.php?c=Seafood, one recipe: search.php?s=chicken
• open-meteo.comWeather by coordinates
• api.frankfurter.appExchange rates: /latest?from=EUR&to=USD
• dummyjson.comFake products, users, carts for demos

When it does not work

• Left menu → Executions. Red box = the problem is there. Click it, compare input and output.
• Production URL in the app, not the Test URL. Workflow switched to Active.
• Read incoming fields as $json.body.FIELD, not $json.FIELD.
• CORS error in the browser: Webhook box → Options → Allowed Origins → *, save, activate again.
• Pasted workflow with a red box: open it, pick your own credential.