Next.js API Routes Failing in Production? Let's Fix It.

Force Dynamic Execution

If your GET request is returning stale data, tell Next.js to never cache the endpoint.

import { NextResponse } from 'next/server';

// Add this line to the top of your route.ts
export const dynamic = 'force-dynamic';

export async function GET() {
  const data = await fetchRealtimeDatabase();
  return NextResponse.json(data);
}

• Using dynamic functions like `cookies()` or `headers()` inside the route also forces it to be dynamic automatically.

Analyze Vercel Runtime Logs

If you get a 500 Internal Server Error, don't guess. The exact stack trace is in your dashboard.

• Go to Vercel -> Your Project -> Logs.
• Filter by 'Error'.
• Look for missing environment variables or database connection drops.

Migrate to the Edge Runtime (for Speed)

If you are suffering from cold boot delays or timeouts, and your code doesn't rely on native Node.js APIs (like `fs`), switch to the Edge runtime. It boots instantly and has different timeout rules.

export const runtime = 'edge';

export async function GET(request: Request) {
  return new Response('Hello from the Edge!');
}