feat: 后端初始化

supplied-service/netlify/utils/method.ts

@@ -0,0 +1,13 @@
+import { handleOptions, methodNotAllowed } from './http.js'
+
+export const guardMethod = (request: Request, allowedMethods: string[]) => {
+  if (request.method === 'OPTIONS') {
+    return handleOptions()
+  }
+
+  if (!allowedMethods.includes(request.method)) {
+    return methodNotAllowed(allowedMethods)
+  }
+
+  return null
+}