This article provides a complete, practical walkthrough of the Webhook Filemaker Create 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:
   Securely Handling Xero Webhooks with n8n and FileMaker Integration
   
   Meta Description:
   Learn how to validate and process Xero webhooks using n8n, ensuring data integrity through HMAC SHA256 verification, and storing the information in a FileMaker database for further automation.
   
   Keywords:
   n8n, Xero webhook, FileMaker integration, HMAC verification, SHA256, n8n workflow, webhook response, data automation, secure API integration, low-code automation
   
   Third-Party APIs Used:
   - Xero API (Webhook)
   - FileMaker (via FileMaker Data API)
   
   Article:
   
   Securing Xero Webhooks with n8n and FileMaker Integration
   
   Webhooks are a popular method for integrating third-party services like Xero with your own systems, allowing real-time event-driven data communication. However, receiving data from external sources introduces security and data integrity concerns. To address this, platforms like Xero implement HMAC SHA256 signature verification. In this article, we’ll explore a purpose-built n8n workflow that receives and verifies Xero webhook requests, stores the data securely in a FileMaker database, and triggers additional processing automatically.
   
   This low-code solution ensures each webhook is authenticated before it is acted upon — combining the flexibility of n8n with the robustness of FileMaker’s backend capabilities.
   
   Workflow Overview
   
   The n8n workflow consists of several key components working in sequence:
   
   1. Receiving the Xero Webhook
   2. Extracting and Preparing Raw Data
   3. Verifying the Request via HMAC SHA256
   4. Responding to Xero Based on Verification
   5. Logging the Data in FileMaker
   6. Triggering a FileMaker Script for Further Processing
   
   Let’s explore each section in detail.
   
   🔗 Receiving and Preparing Xero Webhook Data
   
   The Xero Webhook node is configured to accept a POST request at a unique path. It’s set to capture the raw body of the request, which is required for signature validation later in the process.
   
   Once captured, the raw binary data is moved into a defined property called raw_data using the Move Binary Data node. This allows the payload to be accessed and manipulated downstream.
   
   🛡 Setting the Stage for Verification
   
   The Set node creates a new field, source_data, and populates it with the raw_data payload. This step ensures that the exact body Xero sent (without mutations) is used when generating the signature hash.
   
   🔐 Validating the Webhook with HMAC SHA256
   
   One of the most crucial steps in this workflow involves the Crypto node. Here, the source_data is passed through an HMAC SHA256 hashing process using the shared secret provided by Xero. This matches the signature generation method Xero uses for authenticating webhook data.
   
   The hash is then encoded in base64 and stored in a new property called target_data.
   
   🧪 Conditional Check: Authentic or Not?
   
   Using an IF node, n8n evaluates whether the computed HMAC signature (target_data) matches the x-xero-signature value provided by Xero in the request headers.
   
   - If the values match, the request is deemed authentic, and the workflow proceeds.
   - If the values don’t match, the workflow halts with a 401 Unauthorized response to Xero.
   
   🟢 Handling Verified Webhooks
   
   Successful verification sends a 200 response back to Xero using a Respond to Webhook node labeled Success. This response indicates that the payload has been received and understood.
   
   Next, the workflow creates a new record in a FileMaker layout called Webhooks. It stores the raw JSON payload into a field, enabling traceability and compliance.
   
   🚀 Triggering Automation with FileMaker Scripts
   
   Upon saving the data, n8n triggers the processWebhook script using FileMaker’s Perform Script action. The unique record ID returned from the previous FileMaker step is passed as a parameter.
   
   This design lets you decouple logic and maintain a clean system. Logic specific to your business can remain in FileMaker scripts, while n8n handles orchestration and automation.
   
   💡 Why This Matters
   
   This integration beautifully illustrates how modern automation platforms like n8n can streamline secure communications with financial platforms like Xero.
   
   Key benefits:
   
   - Data security validated via HMAC SHA256
   - Seamless response handling (200 or 401)
   - Reliable record-keeping in FileMaker for audit trails
   - Script-based automation triggered instantly
   
   🔌 Technologies and APIs Used
   
   - Xero API: Sends webhook payloads and HMAC signatures for validation
   - FileMaker Data API: Creates records and performs scripts on verified data
   - n8n Workflow: Handles orchestration, verification, and response
   
   Conclusion
   
   Securing webhook communication from external services like Xero is a vital step toward safeguarding your business data. This n8n workflow not only validates incoming payloads but also integrates seamlessly with FileMaker to store and process them. Whether you're a developer or business analyst, adopting such principles helps you build dependable, secure, and scalable integrations in your automation stack.
   
   With minimal coding and robust security handling, this solution is a testament to what low-code platforms like n8n can achieve in a modern API-driven ecosystem.

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.