node-stagger

Execute a stack with a given 'request-per-seconds' and 'max-requests' rate.

Install

npm install stagger

Usage

var stagger = new Stagger(options);
stagger.push(methods);
stagger.start();
stagger.on("progress", handleResponse);
stagger.on("finish", handleDone);

Options

• requestsPerSecond - Number of requests per seconds. Default: 10
• maxRequests - Maximum open requests. Default: 20

Events

"progress" Event:

• index - initial stack index
• pending - number of pending calls
• total - total call count
• current - current batch size
• percent - current percentage
• eta - estimated total duration
• callback - original callback
• value - returned value
• duration - response time

"complete" Event:

• total - total call count
• duration - total duration

Example

var Stagger = require("../lib/stagger"),
  stagger = new Stagger();

for (var i=0; i<100; i++){
  stagger.push(callback);
}

stagger.on("progress", function(event){
  console.log(event.value);
});

stagger.on("finish", function(event){
  console.log("finish", event.duration);
});

stagger.start();

Author

Martin Kleppe - [email protected]