Demo: Persist Variables with workflowStaticData()

This workflow serves as a practical demo for leveraging n8n's workflowStaticData() function, which allows storing any data type that persists across production executions (webhook or schedule triggers, not manual). It's ideal for managing stateful information without external databases.

Key functionality includes checking for an existing access token and its expiry in static data. If valid, the workflow proceeds seamlessly; otherwise, it fetches a new token via HTTP Request and updates the static data with the new token and expiry time. This eliminates manual token refreshes and ensures uninterrupted API interactions.

Benefits include reduced complexity in token management, improved reliability for expiring credentials, and scalability for production automations. Use cases span API integrations requiring auth (e.g., OAuth tokens), counters, user sessions, or any persistent state like last-run timestamps. Note: Requires workflow activation and production testing; static data doesn't update in manual executions.

Setup is straightforward: Configure the HTTP Request node with your API endpoint, activate the workflow, and test via the production webhook URL. Monitor static data population in execution logs. Perfect for developers building robust n8n automations.