This article provides a complete, practical walkthrough of the Http Form Import Webhook n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   **Title:**  
   Automated Invoice Generation & Delivery with n8n and JSReport
   
   **Meta Description:**  
   Learn how to build a seamless workflow to generate and send PDF invoices using n8n, JSReport, and Gmail. Automate document creation from form data using low-code tools.
   
   **Keywords:**  
   n8n workflow automation, JSReport integration, PDF generation, invoice automation, Gmail API, low-code automation, business process automation, document generation, JSReport API, send emails with attachments n8n
   
   **Third-Party APIs Used:**
   
   1. **JSReport API** – For generating PDF invoices based on dynamic form data.  
      - Endpoint: `https://xxx.jsreportonline.net/api/report`  
      - Docs: https://jsreport.net/learn/api  
   
   2. **Gmail API (via n8n Gmail Node)** – For sending the generated PDF invoice to a specified recipient.  
      - Integrated through n8n's Gmail OAuth2 credentials.
   
   
   ---
   
   ## Streamline Your Billing Workflow: Automate PDF Invoice Generation with n8n & JSReport
   
   In today’s fast-paced business environments, automation can save time and prevent errors — especially in repetitive workflows like invoicing. Leveraging low-code automation platforms like n8n allows even non-developers to connect powerful tools with minimal effort. In this tutorial, we explore how to create an intelligent and streamlined invoicing system using n8n in conjunction with JSReport and Gmail.
   
   This integration allows you to:
   - Capture invoice details through a web-based form.
   - Automatically generate a professional-looking PDF invoice with JSReport.
   - Email the PDF invoice directly to a recipient using Gmail.
   
   Let's walk through how this workflow is structured and how you can adapt it for your own business needs.
   
   ---
   
   ### Step 1: Collect Invoice Data with an n8n Form
   
   The first step in our workflow starts with an n8n **Form Trigger** node labeled “Form Invoice”. This node presents a simple online form that captures buyer and invoice item details such as:
   
   - Buyer Name, Road, and Country
   - Item 1 Name and Price
   - Item 2 Name and Price
   
   Form inputs are marked as required where necessary, ensuring the essential invoice data is always collected.
   
   This form acts as the front end of the invoice-generating machine, offering a user-friendly interface for manual input or embedding into customer-facing systems.
   
   ---
   
   ### Step 2: Generate a PDF Invoice with JSReport
   
   Upon form submission, the workflow passes the input data to the **HTTP Request** node titled “Get PDF From JSReport”. This node connects to JSReport’s REST API and sends a POST request with a JSON payload that combines both templating and input data.
   
   The payload sends a structured object with a reference to a report template (in this case, `invoice-main`) and dynamic form data (like buyer info and item details). Under the hood, JSReport uses templating logic to bind input data to a predesigned HTML/handlebars template and returns the formatted document in PDF format.
   
   Here’s a simplified version of the request body being sent:
   
   ```json
   {
     "template": { "name" : "invoice-main" },
     "data" : {
       "number": "123",
       "seller": {
         "name": "Next Step Webs, Inc.",
         "road": "12345 Sunny Road",
         "country": "Sunnyville, TX 12345"
       },
       "buyer": {
         "name": "{{ $json[\"buyer name\"] }}",
         "road": "{{ $json[\"buyer road\"] }}",
         "country": "{{ $json[\"buyer country\"] }}"
       },
       "items": [
         {
           "name": "{{ $json[\"Item 1 Name\"] }}",
           "price": {{ $json[\"Item 1 Price\"] }}
         },
         {
           "name": "{{ $json[\"Item 2 Name\"] }}",
           "price": {{ $json[\"Item 2 Price\"] }}
         }
       ]
     }
   }
   ```
   
   The dynamic templating syntax above allows the form input to be populated into the PDF on-the-fly.
   
   > JSReport makes PDF rendering simple, and their free cloud-based platform (https://jsreport.net/online) lets users try templates and APIs without local setup.
   
   ---
   
   ### Step 3: Deliver the Invoice via Gmail
   
   The final step in the process connects to the Gmail API using the “Send Invoice” node. Once the PDF is received from JSReport, it is attached to an email message and sent to the specified recipient — in this case, "contact@nonocode.fr".
   
   The email comes with a predefined subject and message body:
   
   - **Subject**: “New Facture”
   - **Body**:
     
     ```
     Good morning,
     
     Please find your invoice.
     
     Sincerely,
     ```
   
   This elegant and automated delivery ensures that customers receive invoices promptly, with zero manual intervention.
   
   With proper configuration, you can replace the destination email address with a dynamic field or input from the form, making it ideal for customer-specific communication.
   
   ---
   
   ### Optimizations & Customization Tips
   
   - 📄 You can customize the invoice appearance by modifying the JSReport invoice template to match your brand.
   - 💬 Want to attach more documents? Use n8n’s file input fields or append multiple document generation steps.
   - 🔐 Ensure your credentials (HTTP Basic Auth and Gmail OAuth2) are stored securely in your n8n credential manager.
   - 📨 To send to dynamic emails (e.g., buyer’s email), extend the form to collect the address and connect it to the "Send Invoice" node.
   
   ---
   
   ### Final Thoughts
   
   This n8n-based workflow exemplifies how low-code automation can bring together different cloud services to deliver a professional, end-to-end invoicing solution. Whether you're a solo consultant billing clients or part of a growing startup, this setup can simplify your document generation process significantly.
   
   By integrating just three services — a form input with n8n, JSReport for document creation, and Gmail for delivery — you can eliminate repetitive tasks and focus more on growing your business.
   
   Experience the benefits of automation with n8n, and take control of your billing today.
   
   --- 
   
   If you're ready to automate, sign up for a free JSReport account and deploy your first workflow on n8n. The future of paperless and automated billing is just a few nodes away.

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.