Send moved permanently redirects for /api/v0/

web/middleware.ts

@@ -0,0 +1,43 @@
+import { NextResponse, type NextRequest } from 'next/server'
+import { PROD_CONFIG } from 'common/envs/prod'
+
+export async function middleware(req: NextRequest) {
+  const path = req.nextUrl.pathname.replace('/api/', '')
+
+  if (pathsToSkip.includes(path)) {
+    return NextResponse.next()
+  }
+
+  return new Response('Permanent Redirect', {
+    status: 308,
+    headers: {
+      location: getProxiedRequestUrl(req, path),
+    },
+  })
+}
+
+export const config = {
+  matcher: ['/api/v0/:path*'],
+}
+
+const pathsToSkip = ['v0/deployment-id', 'v0/revalidate']
+
+function getProxiedRequestUrl(req: NextRequest, path: string) {
+  const baseUrl = getApiUrl(path)
+  const [_prefix, qs] = req.url!.split('?', 2)
+  if (qs) {
+    return baseUrl + '?' + qs
+  } else {
+    return baseUrl
+  }
+}
+
+// copied from common/src/utils/api. TODO the right thing
+function getApiUrl(path: string) {
+  if (process.env.NEXT_PUBLIC_API_URL) {
+    return `http://${process.env.NEXT_PUBLIC_API_URL}/${path}`
+  } else {
+    const { apiEndpoint } = PROD_CONFIG
+    return `https://${apiEndpoint}/${path}`
+  }
+}