boosting the maximum number of requests allowed

What can be done to increase the request limit if the user continues to hit rate limits?

This is my current rate limiter setup:

const Limiter = rateLimit({
  windowMs: 10000,
  max: 5,
  standardHeaders: true,
  legacyHeaders: false,
  keyGenerator: function (req) { return req.ip; },
  message: async (req, res) => {res.render("429", {message: `IP ${req.ip} was rate limited.`}) }
})

I attempted to research on Google for a solution but unfortunately found no relevant information.

Answer №1

To enforce a higher limit for all users, adjust the max value from 5 to a larger number such as 10 or 50.

If you want the increased limit to only apply to specific users, set max to a function that determines the correct value based on the request:

const Limiter = rateLimit({
  windowMs: 10000,
  max: function(req) {
    if (/* specify conditions for users needing higher limit */) {
      return 10;
    }
    return 5; // default limit for others
  },
  standardHeaders: true,
  legacyHeaders: false,
  keyGenerator: function (req) { return req.ip; },
  message: async (req, res) => {res.render("429", {message: `IP ${req.ip} was rate limited.`}) }
})

Disclaimer: The author of this solution is associated with express-rate-limit.

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