如果我只想在NodeJS响应中设置状态和标头，是否需要调用'send（''）'

Question

return res
    .status(404)
    .set('Content-Type', 'text/plain');

I am only interested in sending status code and header. I have no body or message. Is the above code valid, or I need to call send('') to complete construction the response object ?

Answer 1

You can use sendStatus(code) which will just send the status code without any attached json with response

https://expressjs.com/en/4x/api.html#res.sendStatus

res.sendStatus(404);

or

res.status(404).end();

http://expressjs.com/en/4x/api.html#res.end