{ "name": "finisma: Rechnung aus Formular (ZUGFeRD)", "nodes": [ { "parameters": { "multipleMethods": true, "path": "rechnung", "responseMode": "responseNode", "options": {} }, "name": "Webhook", "type": "n8n-nodes-base.webhook", "typeVersion": 2.1, "position": [0, 208], "webhookId": "finisma-rechnung-aus-formular" }, { "parameters": { "respondWith": "text", "responseBody": "\n\nRechnung erstellen · finisma\n

Rechnung erstellen

finisma erzeugt daraus eine ZUGFeRD-Rechnung (PDF/A-3, EN 16931), der Download startet sofort. Verkäufer und Bankverbindung kommen aus dem Workflow.

", "options": { "responseHeaders": { "entries": [ { "name": "Content-Type", "value": "text/html; charset=utf-8" } ] } } }, "name": "show form", "type": "n8n-nodes-base.respondToWebhook", "typeVersion": 1.1, "position": [272, 64] }, { "parameters": { "jsCode": "// Standardwerte: hier den eigenen Verkäufer und die Bankverbindung eintragen.\nconst VERKAEUFER = {\n name: 'Muster GmbH',\n vatId: 'DE123456789',\n address: { line1: 'Musterstraße 1', postalCode: '20095', city: 'Hamburg', countryCode: 'DE' },\n};\nconst IBAN = 'DE02120300000000202051';\nconst ZAHLUNGSZIEL_TAGE = 14;\n\n// Formularfelder in die Rechnungsdaten übersetzen.\nconst f = $input.first().json.body ?? {};\nconst zahl = (v) => Number(String(v ?? '').trim().replace(/\\./g, '').replace(',', '.'));\nconst positionen = [1, 2, 3]\n .filter((i) => String(f['p' + i + '_text'] ?? '').trim() !== '')\n .map((i) => ({\n name: String(f['p' + i + '_text']).trim(),\n quantity: zahl(f['p' + i + '_menge'] || '1'),\n unitPriceNet: zahl(f['p' + i + '_preis']),\n vatRatePercent: zahl(f['p' + i + '_ust'] || '19'),\n }));\nconst eingabe = {\n invoiceNumber: String(f.nummer ?? '').trim() || undefined,\n issueDate: String(f.datum ?? '').trim() || undefined,\n buyer: {\n name: String(f.name ?? '').trim(),\n address: {\n line1: String(f.strasse ?? '').trim(),\n postalCode: String(f.plz ?? '').trim(),\n city: String(f.ort ?? '').trim(),\n countryCode: (String(f.land ?? '').trim() || 'DE').toUpperCase(),\n },\n },\n lines: positionen,\n};\nconst tag = (d) => d.toISOString().slice(0, 10);\nconst heute = tag(new Date());\nconst faellig = tag(new Date(Date.now() + ZAHLUNGSZIEL_TAGE * 864e5));\nconst r2 = (n) => Math.round(n * 100) / 100;\n\nconst lines = (eingabe.lines ?? []).map((l) => {\n const quantity = Number(l.quantity ?? 1);\n const unitPriceNet = Number(l.unitPriceNet ?? 0);\n const vatRatePercent = Number(l.vatRatePercent ?? 19);\n return { name: l.name, quantity, unitCode: l.unitCode ?? 'C62', unitPriceNet, vatRatePercent, lineNetAmount: r2(quantity * unitPriceNet) };\n});\nif (lines.length === 0) throw new Error('Mindestens eine Position ausfüllen.');\n\nconst gruppen = {};\nfor (const l of lines) {\n const g = (gruppen[l.vatRatePercent] ??= { ratePercent: l.vatRatePercent, basisAmount: 0, categoryCode: l.vatRatePercent > 0 ? 'S' : 'Z' });\n g.basisAmount = r2(g.basisAmount + l.lineNetAmount);\n}\nconst vatBreakdown = Object.values(gruppen).map((g) => ({ ...g, taxAmount: r2((g.basisAmount * g.ratePercent) / 100) }));\nconst totalNet = r2(lines.reduce((s, l) => s + l.lineNetAmount, 0));\nconst totalVat = r2(vatBreakdown.reduce((s, g) => s + g.taxAmount, 0));\nconst invoiceNumber = eingabe.invoiceNumber ?? 'RE-' + heute.replaceAll('-', '') + '-' + String(Date.now()).slice(-4);\n\nconst invoice = {\n invoiceNumber,\n issueDate: eingabe.issueDate ?? heute,\n dueDate: eingabe.dueDate ?? faellig,\n seller: eingabe.seller ?? VERKAEUFER,\n buyer: eingabe.buyer,\n payment: { iban: eingabe.iban ?? IBAN, reference: invoiceNumber },\n lines,\n vatBreakdown,\n totalNet,\n totalVat,\n totalGross: r2(totalNet + totalVat),\n};\nreturn [{ json: { invoice, filename: invoiceNumber + '.pdf' } }];" }, "name": "create invoice Json from data", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [272, 352], "onError": "continueErrorOutput" }, { "parameters": { "source": "generate", "invoice": "={{ JSON.stringify($json.invoice) }}", "filename": "={{ $json.filename }}" }, "name": "Create invoice", "type": "n8n-nodes-zugferd-finisma.zugferdFinisma", "typeVersion": 1, "position": [544, 160], "onError": "continueErrorOutput" }, { "parameters": { "respondWith": "binary", "options": { "responseHeaders": { "entries": [ { "name": "Content-Disposition", "value": "={{ 'attachment; filename=\"' + $binary.data.fileName + '\"' }}" } ] } } }, "name": "download PDF", "type": "n8n-nodes-base.respondToWebhook", "typeVersion": 1.1, "position": [816, 144] }, { "parameters": { "respondWith": "text", "responseBody": "={{ 'Fehler

Rechnung konnte nicht erzeugt werden

' + String($json.error?.message ?? $json.error ?? 'Unbekannter Fehler').replace(/Zurück zum Formular' }}",
        "options": {
          "responseCode": 422,
          "responseHeaders": {
            "entries": [
              {
                "name": "Content-Type",
                "value": "text/html; charset=utf-8"
              }
            ]
          }
        }
      },
      "name": "show error",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [816, 368]
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [{ "node": "show form", "type": "main", "index": 0 }],
        [{ "node": "create invoice Json from data", "type": "main", "index": 0 }]
      ]
    },
    "create invoice Json from data": {
      "main": [
        [{ "node": "Create invoice", "type": "main", "index": 0 }],
        [{ "node": "show error", "type": "main", "index": 0 }]
      ]
    },
    "Create invoice": {
      "main": [
        [{ "node": "download PDF", "type": "main", "index": 0 }],
        [{ "node": "show error", "type": "main", "index": 0 }]
      ]
    }
  }
}

Rechnung erstellen

Kunde

Rechnung

Positionen

Rechnung konnte nicht erzeugt werden