This article provides a complete, practical walkthrough of the Code Webhook Create Scheduled 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: Managing Expiring Access Tokens in n8n Using Static Data
   
   Meta Description: Learn how to use static data in n8n workflows to manage access tokens that expire after a set duration. This guide walks through a practical example using schedule triggers and conditional logic for automated token refreshing.
   
   Keywords: n8n, access token, automation, workflow, API authentication, OAuth, webhook, schedule trigger, static data, token refresh, JavaScript, HTTP request
   
   Third-Party APIs Used:
   - http://your-api.com (Placeholder used to simulate an API endpoint for retrieving new access tokens. Replace with your actual API.)
   
   Article:
   
   Managing Expiring Access Tokens in n8n Using Static Data
   
   Access tokens are a cornerstone of modern API authentication. However, many APIs issue tokens with limited lifespans — lasting only minutes in some cases. In automated workflows, this poses a challenge: how do you ensure your API calls are always authenticated, without requiring constant user intervention? n8n, a powerful automation tool, offers a clean and scalable way to handle this with workflow static data and scheduled logic.
   
   In this article, we’ll break down a practical n8n workflow that checks the validity of an access token and fetches a new one when needed — all without manual input. This approach is ideal for automating connections to APIs where tokens expire on a regular basis.
   
   Understanding the Workflow
   
   This n8n workflow demonstrates how to:
   
   - Store an access token persistently across workflow executions
   - Check if the token has expired (based on a timestamp)
   - Request a new token from an API if necessary
   - Store the refreshed token for future use
   
   Let’s dive into the key components of this workflow.
   
   Triggering the Workflow
   
   The workflow uses two types of triggers:
   
   1. Webhook Trigger:
      Acts as an external trigger. When a request hits the defined webhook URL, it initiates the workflow. This is useful if another system or service needs to use the token programmatically.
   
   2. Schedule Trigger:
      Automatically fires the workflow at specified intervals (e.g., every minute, hourly, or daily) to ensure the token is always fresh before expiration.
   
   This setup ensures the token is consistently validated — whether on-demand via HTTP or as part of a time-based job.
   
   Initializing Static Data
   
   The node named “1. initiate static data” is a Code node that initializes the workflow’s static storage using:
   
   const workflowStaticData = $getWorkflowStaticData('global');
   
   It checks if an accessToken and a timestamp already exist. If not, it creates and stores initial values:
   
   workflowStaticData.accessToken = 0;  
   workflowStaticData.timestamp = $now.toISO();
   
   This static data will persist between executions as long as the workflow is activated and triggered via a production mechanism (not manual runs).
   
   Checking Token Validity
   
   Next, the “if token is valid” node uses an If-node with a condition comparing the stored timestamp against the current time. If the stored timestamp is less than one minute old (in this example, tokens expire after one minute), it proceeds with the current token.
   
   This logic uses:
   
   $now.minus(1,'minute')
   
   to validate if the token is still within its acceptable window of life.
   
   Refreshing the Access Token
   
   If the token has expired, the workflow triggers an HTTP Request node called “get new accessToken”. This node contacts a predefined API endpoint — http://your-api.com — that returns a fresh access token. Its response is assumed to include a field like AccessToken.
   
   The subsequent Code node named “2. set token in static data” captures and stores this new access token, along with the current timestamp, back into the workflow static data:
   
   workflowStaticData.accessToken = $input.first().json.AccessToken;  
   workflowStaticData.timestamp = $now.toISO().toString();
   
   This newly refreshed token will now be available for the next run of the workflow or any other nodes that rely on it.
   
   Continuing with a Valid Token
   
   Whether the token was already valid or has just been refreshed, the workflow route continues to the node “continue with valid token”, a NoOp node placeholder that could represent your next steps — for example, making authenticated API calls using the token.
   
   Important Notes
   
   - Static data only persists in production runs. For it to work reliably, ensure the workflow is activated.
   - The full guide on $getWorkflowStaticData can be found in n8n’s documentation.
   - To adapt this workflow for your own needs, replace http://your-api.com with your actual token provider endpoint. Make sure to adjust response parsing if the token is provided in headers instead of the body.
   
   Conclusion
   
   Handling short-lived access tokens doesn’t need to involve complex infrastructure. With n8n’s powerful automation features and persistent workflow static data, you can build a robust system that fetches fresh tokens only when needed. Whether you’re integrating with OAuth-protected APIs or managing your own internal token systems, this workflow is a strong pattern to follow.
   
   Ready to try it out? Activate your workflow in n8n, plug in your actual API, and enjoy seamless API authentication with far less friction.
   
   Need more ideas for building with n8n? Check out more workflow examples and code snippets in the n8n documentation and community forums.

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.