我在快遞中有這樣的路線
router.route('/sign-upload').post(signUpload)
我想根據請求為這條路由使用不同的速率限制器。
router.route('/sign-upload').post(function (req, res, next) {
switch (req.body.qty) {
case 'one':
console.log('case one')
B1Limiter
break
case '10-50':
console.log('case 10-50')
B10To50Limiter
break
case '50-250':
console.log('case 50-250')
B50To250Limiter
break
case '250-1000':
console.log('case 250-1000')
B250To1kLimiter
break
default:
console.log('case default')
B1Limiter
break
}
next()},signUpload)
這些是我的限制器：
import rateLimit from 'express-rate-limit'
// B1 15req/hr
export const B1Limiter = rateLimit({
windowMs: 60 * 60 * 1000,
max: 15,
message: 'Too many requests from this IP. Please try again after an hour',
})
// B10-50 300req/day
export const B10To50Limiter = rateLimit({
windowMs: 24 * 60 * 60 * 1000,
max: 300,
message: 'Too many requests from this IP. Please try again tomorrow',
})
// B50-250 750req/3 days
export const B50To250Limiter = rateLimit({
windowMs: 3 * 24 * 60 * 60 * 1000,
max: 750,
message: 'Too many requests from this IP. Please try again after three days',
})
// B250-1000 3kreq/week
export const B250To1kLimiter = rateLimit({
windowMs: 7 * 24 * 60 * 60 * 1000,
max: 3000,
message: 'Too many requests from this IP. Please try again after week',
})
此代碼的速率限制器未執行。我不知道為什么。
我不能使用單個限制器，因為 windowMs 和 message 不是函式。 https://github.com/nfriedly/express-rate-limit/issues/122
如果我卸下開關盒并只使用一個限制器，限制器就可以作業
router.route('/sign-upload').post(B1Limiter,signUpload)
這是否意味著我必須為每個速率限制器制作單獨的路由？
uj5u.com熱心網友回復：
您可以像這樣有條件地選擇并執行您想要的中間件：
router.route('/sign-upload').post(function (req, res, next) {
let limiter = B1Limiter;
switch (req.body.qty) {
case 'one':
console.log('case one')
limiter = B1Limiter
break
case '10-50':
console.log('case 10-50')
limiter = B10To50Limiter
break
case '50-250':
console.log('case 50-250')
limiter = B50To250Limiter
break
case '250-1000':
console.log('case 250-1000')
limiter = B250To1kLimiter
break
default:
console.log('case default')
limiter = B1Limiter
break
}
// now call the selected middleware and
// let it handle calling next()
limiter(req, res, next);
}, signUpload);
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