Migrate from Inngest Cron Functions

Find your cron functions

Search for inngest.createFunction() calls with a "cron" trigger in your codebase.

# Find Inngest cron functions
grep -r "cron:" src/ --include="*.ts"

Extract the function logic

For each cron function, identify what it does — typically an HTTP call or database operation.

Expose logic as HTTP endpoints

Create an HTTP route that performs the same action as the Inngest function.

// app/api/cron/sync/route.ts
export async function POST(req: Request) {
  const secret = req.headers.get("x-cron-secret");
  if (secret !== process.env.CRON_SECRET) return new Response("Unauthorized", { status: 401 });
  await syncData();
  return Response.json({ synced: true });
}

Create JustRun jobs

Create a JustRun job for each function: same cron expression, HTTP endpoint URL, x-cron-secret header.

Remove Inngest cron functions

Delete the createFunction() definitions for schedule triggers. Keep Inngest for event-driven functions if still needed.