initial commit

api/index.ts

@@ -0,0 +1,46 @@
+import app from '../src/app';
+
+type VercelResponse = {
+  status: (code: number) => VercelResponse;
+  setHeader: (name: string, value: string) => VercelResponse;
+  send: (body: string | object | Buffer) => VercelResponse;
+  json: (body: object) => VercelResponse;
+};
+
+export default async function handler(
+  req: {
+    headers: Record<string, string | string[] | undefined>;
+    method: string;
+    url: string;
+    body: unknown;
+  },
+  res: VercelResponse
+) {
+  try {
+    const protocol = req.headers['x-forwarded-proto'] || 'https';
+    const host = req.headers['x-forwarded-host'] || req.headers.host;
+    const url = `${protocol}://${host}${req.url}`;
+    const webRequest = new Request(url, {
+      method: req.method,
+      headers: new Headers(req.headers as Record<string, string>),
+      body: req.method !== 'GET' && req.method !== 'HEAD' ? JSON.stringify(req.body) : undefined,
+    });
+
+    const webResponse = await app.fetch(webRequest);
+    res.status(webResponse.status);
+    webResponse.headers.forEach((value: string, key: string) => {
+      res.setHeader(key, value);
+    });
+
+    const body = await webResponse.text();
+    res.send(body);
+  } catch (error: unknown) {
+    const err = error as Error;
+    console.error('Vercel handler error:', err);
+    res.status(500).json({
+      success: false,
+      error: 'Internal Server Error',
+      message: err.message,
+    });
+  }
+}