Web Development using Angular 2/4 Tutorials and Examples

datatable.service.ts ==================== import { Injectable } from '@angular/core'; @Injectable() export class DatatableService {   constructor() { }   getData(): Promise<any> {    return new Promise((resolve, reject) => {      setTimeout(() => {        resolve(this.dataTableData);      }, 100);    });  }   dataTableData = [{       'name': 'Vinod',       'email': 'vinod@gmail.com',       'regDate': '2017-01-09T14:48:34-08:00',       'city': 'Delhi',       'age': 34   },   {       'name': 'Anita',       'email': 'anita@gmail.com',       'regDate': '2017-01-23T20:09:52-08:00',       'city': 'Bangalore',       'age': 32   },   {       'name': 'Avnish',       'email': 'avi@gmail.com',       'regDate': '2017-11-19T19:11:33-08:00',  

Making POST request to fetch the data from API import { Component } from '@angular/core' ; import { Http } from '@angular/ http ' ; import { contentHeaders } from '../common/headers' ; import { Router } from '@angular/router' ; @Component({     selector: 'app' ,     templateUrl: './app.component.html' ,     styleUrls: [ './app.component.css' ] }) export class  AppComponent {     constructor ( public router: Router, private _http: Http ) { }     registerUser(inputData: string ) {         let body = JSON.stringify({ inputData });         this ._http.post( 'http://localhost:3000/api/<endpoint>' , body, { headers: contentHeaders })             .subscribe(             response => {                console.log(response.json());                 this .router.navigate([ ' home ' ]);             },             error => {                 alert(error