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koa-simple-ratelimit
Advanced tools
Rate limiter middleware for koa v2. Differs from koa-ratelimit by not depending on ratelimiter and using redis ttl (time to live) to handle expiration time remaining. This creates only one entry in redis instead of the three that node-ratelimiter does.
$ npm install koa-simple-ratelimit
var ratelimit = require('koa-simple-ratelimit');
var redis = require('redis');
var koa = require('koa');
var app = new koa();
// apply rate limit
app.use(ratelimit({
db: redis.createClient(),
duration: 60000,
max: 100,
id: function (ctx) {
return ctx.ip;
}
}));
// response middleware
app.use(function (ctx){
ctx.body = 'Hello';
});
app.listen(3000);
console.log('listening on port 3000');
db
redis connection instancemax
max requests within duration
[2500]duration
of limit in milliseconds [3600000]id
id to compare requests [ip]Example 200 with header fields:
HTTP/1.1 200 OK
X-Powered-By: koa
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 99
X-RateLimit-Reset: 1384377793
Content-Type: text/plain; charset=utf-8
Content-Length: 6
Date: Wed, 13 Nov 2013 21:22:13 GMT
Connection: keep-alive
Stuff!
Example 429 response:
HTTP/1.1 429 Too Many Requests
X-Powered-By: koa
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1384377716
Content-Type: text/plain; charset=utf-8
Content-Length: 39
Retry-After: 7
Date: Wed, 13 Nov 2013 21:21:48 GMT
Connection: keep-alive
Rate limit exceeded, retry in 8 seconds
MIT
FAQs
Simple Rate limiter middleware for koa v2
The npm package koa-simple-ratelimit receives a total of 48 weekly downloads. As such, koa-simple-ratelimit popularity was classified as not popular.
We found that koa-simple-ratelimit demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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