next-api-middleware

import { label, Middleware } from "next-api-middleware"; import * as Sentry from "@sentry/nextjs"; import { nanoid } from "nanoid"; // 1 – Create middleware functions const captureErrors: Middleware = async (req, res, next) => { try { // Catch any errors that are thrown in remaining // middleware and the API route handler await next(); } catch (err) { const eventId = Sentry.captureException(err); res.status(500); res.json({ error: err instanceof Error ? err.message : 'An unexpected error occurred.' }); } }; const addRequestId: Middleware = async (req, res, next) => { // Let remaining middleware and API route execute await next(); // Apply header res.setHeader("X-Response-ID", nanoid()); }; // 2 – Use `label` to assemble all middleware const withMiddleware = label( { addRequestId, sentry: captureErrors // <-- Optionally alias middleware }, ["sentry"] // <-- Provide a list of middleware to call automatically ); // 3 – Define your API route handler const apiRouteHandler = async (req: any, res: any) => { res.status(200); res.send("Hello world!"); }; // 4 – Choose middleware to invoke for this API route export default withMiddleware("addRequestId")(apiRouteHandler);