Serverless
Running code without managing a persistent server functions execute on demand and scale automatically. PURIST uses serverless functions (AWS Lambda) for lightweight, infrequent custom operations alongside n8n's workflow engine.
Expert insight
Serverless functions eliminate infrastructure management but introduce cold-start latency, the first invocation after a period of inactivity is noticeably slower than subsequent ones, a consideration for workflows where consistent, predictable latency matters more than infrequent invocation cost savings.
In a real workflow
A serverless function generates a PDF on demand and scales to zero when idle.
Common mistakes
- Long jobs exceeding timeouts.
- Cold starts in latency-sensitive steps.
Complexity level
Requires some familiarity with automation concepts.
See it in action
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- Professional firms Onboarding, documents, billing and reporting run on their own. See what we automate →
- Agencies and SaaS teams Custom n8n and Claude builds, client reporting and internal tools. See what we automate →
- E-commerce brands Orders, support, returns and stock handled without the busywork. See what we automate →
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A point in a long-running workflow where execution pauses and control …
Go deeper
Guides that cover Serverless
9 Best Workflow Automation Tools for Small Business in 2026 (Ranked, Including AI-Powered Options)
A ranked comparison of n8n, Zapier, Make, Pipedream, Activepieces, monday.com, ClickUp, and Airtable, evaluated on real small-business cost, learning curve, and native AI capability, not connector counts.
n8n Self-Hosted PostgreSQL: Setup and Schema Guide (2026)
n8n defaults to SQLite for self-hosted setups, which breaks down fast beyond hobby use. Here's how to properly configure PostgreSQL, and what the schema actually looks like once you're in production.