Code Manual Create Webhook – Business Process Automation | Complete n8n Webhook Guide (Expert)
This article provides a complete, practical walkthrough of the Code Manual Create Webhook n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Expert setup in 2-4 hours. One‑time purchase: €149.
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
- Open n8n and create a new workflow or collection.
- Choose Import from File or Paste JSON.
- Paste the JSON below, then click Import.
-
Show n8n JSON
**Title:** Automating HTML to PDF Conversion with n8n and ConvertAPI **Meta Description:** Discover how to automate the process of converting HTML to PDF using a simple yet powerful n8n workflow integrated with ConvertAPI. Learn each step of this process, from HTML creation to saving the final PDF file to disk. **Keywords:** n8n workflow, ConvertAPI, HTML to PDF, automation, PDF conversion, low-code automation, ConvertAPI authentication, file automation, document automation, n8n tutorial **Third-Party APIs Used:** - ConvertAPI (https://www.convertapi.com/) --- ## Automating HTML to PDF Conversion with n8n and ConvertAPI In today’s fast-paced digital environment, automating repetitive tasks is more important than ever. Whether you’re generating reports, invoices, or exportable documentation, having an automated workflow that performs HTML to PDF conversions can save time and reduce errors. This article walks you through a simple yet effective n8n workflow that converts HTML content to a PDF document using ConvertAPI. ### What is n8n? [n8n](https://n8n.io) is an open-source, low-code workflow automation tool that enables seamless integration between services and allows complex automation without writing extensive code. It supports thousands of workflows across numerous use cases—including file conversion, email automation, data aggregation, and more. ### Objective of the Workflow This tutorial focuses on an n8n workflow that: 1. Triggers the process manually. 2. Creates a basic HTML document. 3. Converts that HTML into a PDF file using ConvertAPI. 4. Saves the resulting PDF on the local disk. Let’s break down each component of the workflow. --- ### Step-by-Step Breakdown #### 1. Manual Trigger - **Node:** "When clicking ‘Test workflow’" - **Type:** Manual Trigger This node allows the user to test the workflow manually from within the n8n UI. It's particularly useful for development and debugging purposes before integrating the workflow into a broader automated system. --- #### 2. Create HTML Content - **Node:** "Create HTML" - **Type:** Set This node generates a minimal but complete HTML5 document. The document includes basic markup: a `<head>` for metadata, a `<body>` with headers and content sections, and a `<footer>`. This HTML is stored as a string in the data field of the workflow item. The HTML content looks something like this: ```html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>ConvertAPI Test Document</title> </head> <body> <h1>ConvertAPI Test Document</h1> <p>This is a minimal HTML5 document...</p> </body> </html> ``` --- #### 3. Buffer the HTML for Upload - **Node:** "Convert HTML to File" - **Type:** Code This JavaScript-enabled node converts the HTML string into a binary format that can be sent as a file upload. It encodes the HTML into a base64 string, attaches the appropriate MIME type, and prepares it as a binary file named `file.html`. ```javascript const text = $node["Create HTML"].json["data"]; const buffer = Buffer.from(text, 'utf8'); const binaryData = { data: buffer.toString('base64'), mimeType: 'application/octet-stream', fileName: 'file.html', }; items[0].binary = { data: binaryData }; return items; ``` This step essentially turns the HTML string into a binary attachment suitable for an API POST request. --- #### 4. Convert HTML to PDF via ConvertAPI - **Node:** "Convert File to PDF" - **Type:** HTTP Request - **API Endpoint:** https://v2.convertapi.com/convert/html/to/pdf ConvertAPI is used here to handle the conversion. It accepts the HTML file as form-data via a POST request and returns a PDF file in response. Keys things to note: - **Authentication:** This workflow uses HTTP Query Authentication to pass a secret key (configured via n8n credentials). - **Headers:** It sets the `Accept` header to receive an octet-stream (binary data). - **Format:** The request includes the HTML file prepared in the previous step as formBinaryData. 🟡 A sticky note in the workflow reminds users to create a free ConvertAPI account to get their API secret, necessary for authentication. --- #### 5. Save the Result to Disk - **Node:** "Write Result File to Disk" - **Type:** Write File The final node in the workflow stores the converted PDF to local disk storage with the filename `document.pdf`. This can later be used for archiving, sending via email, or uploading to cloud storage, depending on your use case. --- ### Benefits of This Workflow - ✅ Fully automated PDF generation - ✅ Easily testable and extendable - ✅ Minimal code with powerful integration - ✅ Reusable for a variety of document templates --- ### Real-World Use Cases - Automatically create invoices or receipts in PDF format for e-commerce transactions. - Generate formatted reports from MongoDB, Google Sheets, or APIs. - Convert CMS content into downloadable or email-ready PDFs. --- ### Final Thoughts This n8n workflow is a compact yet powerful example of how to pair low-code automation with third-party APIs to simplify everyday tasks. By integrating ConvertAPI for HTML to PDF conversion, the workflow offers a hands-free solution for document transformation. Whether you’re a developer or a non-technical professional, this template can save hours of work and enhance workflow efficiency. If you're already using n8n, this workflow can be implemented and customized in a matter of minutes. Make sure you have a ConvertAPI account and the appropriate credentials added to your n8n environment. Time to let automation do the heavy lifting! 🚀 — For more tutorials and workflow inspiration, check out [n8n.io](https://n8n.io/) and [ConvertAPI documentation](https://www.convertapi.com/doc). - Set credentials for each API node (keys, OAuth) in Credentials.
- Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
- 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.