collapse-tasks-queue

Collapse Tasks Queue

CTQueue executes latest task defined by unique key ms milliseconds after latest consume call.

This library was created for firebase push notifications management (but you can use it for anything else, of course). In out case, client pushes button frequently; we need to bound notifications, collapse them and send only latest one. For some reasons we can not do that on client side and we can not use collapse_key across all devices.

let { CTQueue } = require('collapse-tasks-queue');

let q = new CTQueue(100);
let x = 200,
    y = 0,
    z = 300,
    w = 0;
q.consume('a', () => {
    x = 500;
    y = 100;
});
q.consume('b', () => {
    z = 500;
    w = 100;
});
q.consume('a', () => {
    x = 550;
});
q.consume('b', () => {
    z = 550;
});
/*
delay 100 ms
x === 550;
y === 0;
z === 550;
w === 0;
*/