dynamic-serial-promise-all v1.1.0

dynamic-serial-promise-all

Promise.all() for the senario where serially dependent promises are dynamically defined

Use Case

This module is helpful in cases where we wish to wait for a dynamically dependent promise. In other words, when we have a set of promises that are dependent on an initial promise (or set of initial promises) and must be defined dynamically (the dependent promises can not be returned in the promise chains).

Usage

    var promise_all_manager = new (require("dynamic-serial-promise-all"))();
    promise_all_manager.wait_for(initial_promise);
    initial_promise.then(()=>{
        /* ... logic ... */
        promise_all_manager.wait_for(dependent_promise);
    })
    promise_all_manager.promise_all.then(()=>{
        console.log("all have been loaded!");
    })

See the /test directory for specific examples

Overview

• handles situations where we want to wait for a dynamic amount of serially dependent processes
• since we do not know in advance what processes we will want to wait for after a prior process resolves, we will have to "re-check" the promise list
  • recheck :
    • after original promises resolve
    • if on recheck all promises resolve, wait another 100microseconds and recheck
    • if second recheck succeeds, then we can be fairly confident we are done