Throttler

Throttler to limit parallel request and rate

Constructor

Throttler(nb, rate, send)

• nb is the number of parallel request
• rate is an object which defined the time windows rate limiting, it contain nb and time in ms
• send is a function which send back a promise, it's what we try to throttle

Use

just call throttler.send() and it will return a promise which will be resolve when the request has been sent

Demo

the important file is Throttler.js the rest is here for Demo purpose, you can launch the Demo with

npm run installDemo
npm run demo

and connect with your browser on port 9001, after clicking a bit on the send button you should see:

Polling

in my example client.js I use a polling mechanism, so the request given to the throttler don't need to be a simple request. In the demo, the first request is to start the computation, then poll the result every second