cloudflare/vinext
Publicmirrored from https://github.com/cloudflare/vinextAvailable
tests/fixtures/app-basic/middleware.ts
92lines · modecode
| 1 | import { NextRequest, NextResponse } from "next/server"; |
| 2 | |
| 3 | /** |
| 4 | * App Router middleware that uses NextRequest-specific APIs. |
| 5 | * This tests that the middleware receives a NextRequest (not a plain Request). |
| 6 | * |
| 7 | * Also covers OpenNext compat tests (ON-11): |
| 8 | * - Redirect with cookie setting |
| 9 | * - Rewrite (URL stays, content from another page) |
| 10 | * - Rewrite with custom status code |
| 11 | * - Block with 403 |
| 12 | * - Search params forwarding |
| 13 | */ |
| 14 | export function middleware(request: NextRequest) { |
| 15 | // Test NextRequest.nextUrl - this would fail with TypeError if request is plain Request |
| 16 | const { pathname } = request.nextUrl; |
| 17 | |
| 18 | // Test NextRequest.cookies - this would fail with TypeError if request is plain Request |
| 19 | const sessionToken = request.cookies.get("session"); |
| 20 | |
| 21 | const response = NextResponse.next(); |
| 22 | |
| 23 | // Add headers to prove middleware ran and NextRequest APIs worked |
| 24 | response.headers.set("x-middleware-pathname", pathname); |
| 25 | response.headers.set("x-middleware-ran", "true"); |
| 26 | |
| 27 | if (sessionToken) { |
| 28 | response.headers.set("x-middleware-has-session", "true"); |
| 29 | } |
| 30 | |
| 31 | // Redirect /middleware-redirect to /about (with cookie, like OpenNext) |
| 32 | // Ref: opennextjs-cloudflare middleware.ts — redirect with set-cookie header |
| 33 | if (pathname === "/middleware-redirect") { |
| 34 | return NextResponse.redirect(new URL("/about", request.url), { |
| 35 | headers: { "set-cookie": "middleware-redirect=success; Path=/" }, |
| 36 | }); |
| 37 | } |
| 38 | |
| 39 | // Rewrite /middleware-rewrite to render / content (URL stays the same) |
| 40 | // Ref: opennextjs-cloudflare middleware.ts — NextResponse.rewrite |
| 41 | if (pathname === "/middleware-rewrite") { |
| 42 | return NextResponse.rewrite(new URL("/", request.url)); |
| 43 | } |
| 44 | |
| 45 | // Rewrite with custom status code |
| 46 | // Ref: opennextjs-cloudflare middleware.ts — NextResponse.rewrite with status |
| 47 | if (pathname === "/middleware-rewrite-status") { |
| 48 | return NextResponse.rewrite(new URL("/", request.url), { |
| 49 | status: 403, |
| 50 | }); |
| 51 | } |
| 52 | |
| 53 | // Block /middleware-blocked with custom response |
| 54 | if (pathname === "/middleware-blocked") { |
| 55 | return new Response("Blocked by middleware", { status: 403 }); |
| 56 | } |
| 57 | |
| 58 | // Throw an error to test that middleware errors return 500, not bypass auth |
| 59 | if (pathname === "/middleware-throw") { |
| 60 | throw new Error("middleware crash"); |
| 61 | } |
| 62 | |
| 63 | // Forward search params as a header for RSC testing |
| 64 | // Ref: opennextjs-cloudflare middleware.ts — search-params header |
| 65 | const requestHeaders = new Headers(request.headers); |
| 66 | requestHeaders.set( |
| 67 | "x-search-params", |
| 68 | `mw/${request.nextUrl.searchParams.get("searchParams") || ""}`, |
| 69 | ); |
| 70 | const r = NextResponse.next({ |
| 71 | request: { headers: requestHeaders }, |
| 72 | }); |
| 73 | r.headers.set("x-middleware-pathname", pathname); |
| 74 | r.headers.set("x-middleware-ran", "true"); |
| 75 | if (sessionToken) { |
| 76 | r.headers.set("x-middleware-has-session", "true"); |
| 77 | } |
| 78 | return r; |
| 79 | } |
| 80 | |
| 81 | export const config = { |
| 82 | matcher: [ |
| 83 | "/about", |
| 84 | "/middleware-redirect", |
| 85 | "/middleware-rewrite", |
| 86 | "/middleware-rewrite-status", |
| 87 | "/middleware-blocked", |
| 88 | "/middleware-throw", |
| 89 | "/search-query", |
| 90 | "/", |
| 91 | ], |
| 92 | }; |
| 93 | |