Vercel Functions and Runtime Skill

progressive_disclosure: entry_point: summary: "Vercel Functions and Edge Runtime: serverless APIs, edge execution, cron jobs, and routing middleware." when_to_use:

• "When building API routes or serverless logic"
• "When targeting the Edge Runtime"
• "When scheduling tasks with cron jobs" quick_start:
• "Create a function entry point"
• "Choose the runtime (Node or Edge)"
• "Configure cron schedules"
• "Deploy and monitor" token_estimate: entry: 90-110 full: 3600-4700

Overview

Vercel Functions provide serverless execution for APIs and background tasks. The Edge Runtime enables low-latency execution closer to users.

Vercel Functions

• Define serverless functions in the project structure.

• Use environment variables for configuration.

• Review logs for errors and performance.

Edge Runtime

• Use the Edge Runtime for low-latency execution.

• Validate compatibility with the Edge runtime constraints.

Cron Jobs

• Schedule jobs with cron definitions.

• Use cron for periodic maintenance tasks or sync jobs.

Routing and Middleware

• Apply routing middleware for request handling.

• Use headers, rewrites, and redirects to control traffic.

Complementary Skills

When using this skill, consider these related skills (if deployed):

• vercel-deployments-builds: Deployment workflow and release controls.

• vercel-networking-domains: Routing, headers, and edge caching.

• vercel-observability: Logs and tracing for function debugging.

Note: Complementary skills are optional. This skill is fully functional without them.

Resources

Vercel Docs:

• Functions: https://vercel.com/docs/functions

• Edge Runtime: https://vercel.com/docs/functions/runtimes/edge

• Cron Jobs: https://vercel.com/docs/cron-jobs

• Routing Middleware: https://vercel.com/docs/routing-middleware