Manual Htmlextract Automation Webhook – Web Scraping & Data Extraction | Complete n8n Webhook Guide (Intermediate)
This article provides a complete, practical walkthrough of the Manual Htmlextract Automation Webhook n8n agent. It connects Manual Trigger 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 Manual Trigger, 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
- Manual Trigger
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.
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Show n8n JSON
Title: Building a Simple Web Scraper with n8n to Extract HackerNoon Headlines Meta Description: Learn how to create a no-code web scraper using n8n to extract article titles and links from HackerNoon. This step-by-step automation tutorial uses native n8n nodes and demonstrates efficient HTML parsing without writing any code. Keywords: n8n tutorial, no-code automation, web scraping, HackerNoon, HTML parser, HTTP request, extract headlines, workflow automation, open-source automation tool, CSS selectors Third-Party APIs Used: 1. HackerNoon (https://hackernoon.com/) — Public website content accessed via HTTP GET request. Article: No-Code Web Scraping: Extracting HackerNoon Headlines Using n8n In the world of automation and data processing, n8n has earned a reputation as a powerful open-source, extendable workflow automation tool. It allows developers and non-developers alike to connect apps and automate tasks — no code required. One practical use case for n8n is web scraping: extracting structured data from websites that do not offer formal APIs. In this article, we’ll walk through a beginner-friendly n8n workflow that fetches the homepage of HackerNoon and extracts the titles and URLs of headlines automatically. Let’s break it down. Overview of the Workflow This n8n workflow consists of four key nodes: 1. Manual Trigger 2. HTTP Request to HackerNoon 3. HTML Extraction of headline containers 4. HTML Extraction of article links and titles Each of these nodes plays a vital role in pulling fresh content from the site and turning it into usable data. Step 1: Manual Trigger – Initiating the Workflow The first node in the workflow is a Manual Trigger. It allows the entire sequence to be executed manually from within the n8n UI. This is great for testing or running a workflow on-demand without any external input or schedule. It gives you control over when the fetch operation runs. Node: - Name: On clicking 'execute' - Type: n8n-nodes-base.manualTrigger Step 2: HTTP Request – Fetching the HackerNoon Homepage Once triggered, the workflow immediately moves to the HTTP Request node. This node performs a standard GET request to fetch the entire HTML content of HackerNoon’s homepage. Node Details: - Name: HTTP Request - URL: https://hackernoon.com/ - Response Format: string (raw HTML content) At this point, you have the raw HTML of the homepage in hand, ready for parsing. Step 3: HTML Extract – Finding All H2 Tags With the HTML content fetched, the next step is to identify the elements housing the headlines. In the case of HackerNoon, headline titles are typically nested inside <h2> tags. So, the HTML Extract node is configured to pull these <h2> elements. Node: - Name: HTML Extract - CSS Selector: h2 - Output: an array of <h2> elements in HTML format This node isolates potential containers for the link and title information, giving you structured access to each headline’s HTML block. Step 4: HTML Extract1 – Extracting Article Titles and URLs The final node, HTML Extract1, dives deeper into each <h2> tag and accesses the <a> elements within them. It extracts both the display text (article title) and the href attribute (article URL) for each link. Node: - Name: HTML Extract1 - Data Source: The <h2> tags extracted in the previous step - Extraction Values: - Title: text inside the <a> tag - URL: value of the href attribute on the <a> tag By leveraging the power of chained HTML extractors, n8n is now able to isolate the information that matters most — readable titles and clickable links. Output Example: After execution, each item in the output contains: - title: “Build Better Software, Faster with Continuous Delivery” - url: “https://hackernoon.com/build-better-software-faster-with-continuous-delivery” Why This Workflow is Effective Here’s what makes this flow a compelling example of low-code automation: - No need for coding or external libraries — all nodes are built-in to n8n. - Updates are fetched in real-time from a live website. - Flexible — the CSS selectors can easily be adjusted to fit other websites or changing formats. - Scalable — can be extended with scheduling (cron), data storage (Google Sheets, Airtable), or notifications (Slack, Discord). Use Cases This kind of automation can be useful in a variety of scenarios: - Curating content for newsletters or blogs - Monitoring specific blogs for breaking news - Academic research and content analysis - Personal dashboards or RSS replacements Conclusion This simple, four-node n8n workflow showcases how easy and accessible web scraping has become through no-code tools. By using a manual trigger, an HTTP request, and two chained HTML parsing nodes, you can extract constantly updating content like HackerNoon’s headlines without breaking a sweat. Want to make it even more powerful? Hook it up to a Google Sheet, add email or Slack notifications, or schedule it to run every hour — the possibilities are only limited by your imagination. If you're curious about automating your own corner of the internet, this HackerNoon workflow is a perfect place to start. Happy scraping! — Written by n8n AI Assistant
- 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.