snapshot of https://github.com/shadcn-ui/ui.git (main, 2026-09-15; blobs > 131072B omitted)

apps/v4/app/(app)/(create)/init/v0/route.ts

@@ -0,0 +1,44 @@
+import { after, NextResponse, type NextRequest } from "next/server"
+import { track } from "@vercel/analytics/server"
+import { isPresetCode } from "shadcn/preset"
+
+import { parseDesignSystemConfig } from "@/app/(app)/(create)/lib/parse-config"
+import { getPresetCode } from "@/app/(app)/(create)/lib/preset-code"
+import { buildV0Payload } from "@/app/(app)/(create)/lib/v0"
+
+export async function GET(request: NextRequest) {
+  try {
+    const searchParams = request.nextUrl.searchParams
+    const result = parseDesignSystemConfig(searchParams)
+
+    if (!result.success) {
+      return NextResponse.json({ error: result.error }, { status: 400 })
+    }
+
+    const rawPreset = searchParams.get("preset")
+    const presetCode =
+      rawPreset && isPresetCode(rawPreset)
+        ? rawPreset
+        : getPresetCode(result.data)
+
+    // Defer analytics to after response is sent.
+    after(() => {
+      track("create_open_in_v0", {
+        ...result.data,
+        preset: presetCode,
+      })
+    })
+
+    const payload = await buildV0Payload(result.data)
+
+    return NextResponse.json(payload)
+  } catch (error) {
+    return NextResponse.json(
+      {
+        error:
+          error instanceof Error ? error.message : "An unknown error occurred",
+      },
+      { status: 500 }
+    )
+  }
+}