Task: Create an invoice based on the Typeform submission

n8n workflow:
{"nodes":[{"name":"Typeform Trigger","type":"n8n-nodes-base.typeformTrigger","position":[490,280],"webhookId":"6c4b1aa0-226a-4875-bdc3-85bf2313085b","parameters":{"formId":"dpr2kxSL","simplifyAnswers":false},"credentials":{"typeformApi":"Typeform Burner Account"},"typeVersion":1},{"name":"APITemplate.io","type":"n8n-nodes-base.apiTemplateIo","position":[690,280],"parameters":{"options":{"fileName":"invoice.pdf"},"download":true,"resource":"pdf","pdfTemplateId":"96c77b2b1ab6ac88","jsonParameters":true,"propertiesJson":"={\n  \"company\": \"n8n\",\n  \"email\": \"{{$json[\"1\"][\"email\"]}}\",\n  \"invoice_no\": \"213223444\",\n  \"invoice_date\": \"18-03-2021\",\n  \"invoice_due_date\": \"17-04-2021\",\n  \"address\": \"Berlin, Germany\",\n  \"company_bill_to\": \"{{$json[\"0\"][\"text\"]}}\",\n  \"website\": \"https://n8n.io\",\n  \"document_id\": \"889856789012\",\n  \"items\": [\n    {\n      \"item_name\": \"{{$json[\"2\"][\"text\"]}}\",\n      \"price\": \"EUR {{$json[\"3\"][\"number\"]}}\"\n    },\n    {\n      \"item_name\": \"{{$json[\"4\"][\"text\"]}}\",\n      \"price\": \"EUR {{$json[\"5\"][\"number\"]}}\"\n    }    \n    ]\n}"},"credentials":{"apiTemplateIoApi":"APITemplate Credentials"},"typeVersion":1}],"connections":{"Typeform Trigger":{"main":[[{"node":"APITemplate.io","type":"main","index":0}]]}}}