Task NodeX

JavaScript library for executing tasks in a tree structure. Create a hierarchy of functions to execute synchronously or asynchronously. After each task execute a finalizing function.

Useful for a webpage with multiple functions that need to fire in sequence. Where the functions are async functions, promises, or Observables.

Git:

https://github.com/manit77/task-nodex/

Example:

masterTask, finalizeFunction()

task1, task1Func(), task1Done() (sync)

initControls (async) getQueryStringVars (async)

task2 (sync)

getProductCategories (async) getProductTypes (async)

Task3, task3Complete() (sync)

getUser (async) getProduct (async)

• Tasks 1, 2, 3 will execute synchronously
• When Task1, execute task1Func(), then execute initControls(), getQueryStringVars() asynchronously, then execute task1Done() synchronously
• When Task2, execute getProductCategories(), getProductTypes() asynchronously
• When Task3, execute getUser(),getProduct() asynchronously, then execute task3Complete() synchronously
• When all tasks are complete, execute finalizeFunction() function.

Usage:

npm install task-nodex

Example Code:

import { execTaskNode, getTaskNode, TaskNode } from "task-nodex";

class WebController() {

  GetProduct(task: TaskNode) {
    // perform async task
    // call complete when task is done
    task.complete();
  }

}

let controller = new WebController();

let t1 = getTaskNode([controller.GetQueryStrings]);
let t2 = getTaskNode([controller.GetProductCategories, controller.GetProductTypes], true);
let t3 = getTaskNode([controller.GetUser, controller.GetProduct], true);

await execTaskNode(controller, [t1, t2, t3], controller.BindForm);