在 sveltekit 上实现挂钩时，我是否必须等待解决 function

Question

i got this handle implementation for sveltekit hooks and because it returns a promise of response, the resolve function doesn't need to be awaited, since it is a function that either returns a value directly or returns a promise of a value, but this example从文档等待 function。 可以不等待吗？什么时候不等待（如果可以的话）等待

 export const handle:Handle=async ({event,resolve}) => { let sid = getsid(event.request.headers.get('cookie')) event.locals.sessionobj = getSO(sid?sid:'test') return resolve(event) }

Answer 1

不等待也没关系。

等待它的一个原因是，如果您想在响应中添加额外的标头，如第二个示例所示：

export async function handle({ event, resolve }) {
  const response = await resolve(event);
  response.headers.set('x-custom-header', 'potato');
 
  return response;
}