This article provides a complete, practical walkthrough of the Splitout Noop Send Triggered 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:  
   Automate Email Attachments with n8n: Save, Sort, and Manage Gmail Files in Google Drive
   
   Meta Description:  
   Learn how to automate Gmail attachment processing using an n8n workflow. This tutorial shows how to download email attachments, filter them by size, and upload them to Google Drive based on custom rules.
   
   Keywords:  
   n8n, Gmail automation, Google Drive, email attachments, Gmail to Drive, attachment filter, file size filter, automation workflow, n8n tutorial, no-code automation, workflow automation, Google APIs, productivity tools
   
   Third-party APIs Used:  
   
   - Gmail API  
   - Google Drive API  
   
   —  
   
   Full Article:
   
   In the age of digital collaboration and cloud productivity, email remains a primary medium for document and file exchange. However, manually downloading attachments, sorting files by size or type, and organizing them into structured cloud folders can be time-consuming. With n8n, a powerful node-based open-source workflow automation tool, this entire process can be automated.
   
   In this article, we’ll explore a real-world use case of n8n where email attachments from a specific sender are automatically downloaded from Gmail, filtered based on file size, and then either uploaded to a Google Drive folder or ignored.
   
   🎯 Workflow Objective  
   The goal of this n8n workflow is to:
   
   - Monitor Gmail for unread emails from a specific sender (ray.thomas@charter.com)  
   - Download any attachments within those emails  
   - Split the attachments into individual items  
   - Sort them based on file size  
   - Upload “Medium” size attachments (10–300 KB) to a designated Google Drive folder  
   - Trigger a placeholder notification for "Large" files (>300 KB)  
   - Ignore small file attachments (typically icons or signatures)
   
   Let’s break down how this workflow is built within n8n.
   
   📩 Step 1: Triggering Emails in Gmail  
   The process starts with the Gmail Trigger node. This node checks—every minute—if there are any new, unread emails from ray.thomas@charter.com. If such an email is found, it automatically downloads any attached files.
   
   Key configuration elements include:
   
   - Sender filter: ray.thomas@charter.com  
   - Read status: Unread  
   - Attachments: Set to be downloaded automatically  
   
   This node uses the Gmail API via OAuth2 credentials tied to the Gmail account "rthomascharter."
   
   🔄 Step 2: Splitting Multiple Attachments  
   Emails may contain multiple attachments. The "Split Out" node takes the combined binary data of downloaded files and splits them into individual items, each representing a single attachment.
   
   This step is crucial because it enables file-specific processing in the next node, regardless of the original file name or key.
   
   📊 Step 3: Filtering Using File Size  
   After splitting attachments, the “Switch” node analyzes each file based on its size. This node uses expressions to access the fileSize metadata of each binary file. It then evaluates each file against the following conditions:
   
   - Files greater than 300 KB are classified as "Large Files"
   - Files between 10 KB and 300 KB are tagged as "Medium Files"
   - Files under 10 KB fall into the "extra" fallback output (typically small icon files or graphics)
   
   The Switch node outputs attachments to three destinations:
   
   - “Large Files” ➝ Triggers a placeholder notification node
   - “Medium Files” ➝ Uploaded to Google Drive
   - “Extra (Small Files)” ➝ Routed to a NoOp node (used to ignore tiny files)
   
   ☁️ Step 4: Uploading to Google Drive  
   For medium-sized files, the Google Drive node takes over. Each qualifying attachment is uploaded to a specific folder called "misc," located at folder ID 0BwqhgrfUUaOuM2x1NXhxLUlGVEE.
   
   This node dynamically assigns the file name using an expression that extracts the fileName from the binary metadata, ensuring proper file naming in Google Drive.
   
   🔔 Step 5: Placeholder for Notifications  
   While not currently wired to send actual notifications, the "Send 'Too Big' Notification" node is a NoOp node placeholder. It exists to handle the logical path for large attachments, such as possibly alerting the recipient that a file exceeded automation limits and may require manual review.
   
   Similarly, the "Ignore Little Graphics / Icons" node exists as a NoOp handling route for very small files, ensuring these aren’t stored or acted upon unnecessarily.
   
   🧭 Why This Workflow Matters  
   This workflow demonstrates several n8n best practices:
   
   - Usage of dynamic expressions with binary data  
   - Conditional filtering within Switch nodes  
   - File management via Drive API  
   - Smart automation to declutter email processing tasks  
   
   It also shows how n8n can be extended using placeholder nodes (like NoOp) which can later be connected to real-world systems such as Slack, SMS alerts, or ticketing tools for large or suspicious file detections.
   
   🧱 Summary & Scalability  
   This n8n setup is a scalable starting point. It can be extended to:
   
   - Archive processed emails or mark them as read  
   - Send Slack/Discord updates  
   - Use OCR/AI to analyze media content  
   - Automatically zip and archive attachments  
   
   n8n’s modular approach and use of third-party integrations like Gmail and Google Drive demonstrate that even non-programmers can automate complex workflows across their modern tech stacks.
   
   By automating manual processes like attachment sorting and storage, modern teams can save hours of time, reduce data mishandling, and maintain much better organizational hygiene in their Google Drive.
   
   🔗 Quick Facts  
   APIs Used:  
   ✔️ Gmail API  
   ✔️ Google Drive API  
   
   Accounts Required:  
   📧 Gmail account with n8n OAuth2 connection  
   📂 Google Drive account with n8n OAuth2 permission  
   
   Automating small, repetitive tasks like email attachment handling can have a big cumulative return. With tools like n8n, your inbox can finally become the organized hub it was meant to be.

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.