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Getting Data via Service

How to get data from a Service?

To get data from the service rather than keeping it at the component you need to do the following steps:

  1. First create a service
  2. Make a function in service to return some data from service
  3. Create an html element like button to fire an event, corresponding to which data has to be fetched
  4. When this event is fired (or button clicked), catch the event in logic file (.ts) and make a call to the function present in service which will then return data to the logic (.ts) file.
  5. Use this data in view (.html) to be shown to the end user.

Practical Example of "Getting data via Services"

Please follow the mentioned steps:

  1. Create a compennt named 'home'
  2. Add the home component in the app.component.html file removing all boilerplate code there.
  3. Create a service named 'people' - from where we will try to fetch data of 5 people.

  1. Add a button in app.component.html and write a function in the logic file (app.component.ts) to fetch data from service - to be shown in the view of compnoent.


<button (click)="alpha()">Click Me</button>

  <li *ngFor="let x of people">
    {{x.name}}, {{x.age}}, {{x.country}}


import { Component, OnInit } from '@angular/core';
import { PeopleService } from './../../services/people.service';

  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
export class HomeComponent implements OnInit {

  people = [];

  constructor(private peopleService: PeopleService) { }

  ngOnInit() {

  alpha() {
    this.people = this.peopleService.getPeopleData();



import { Injectable } from '@angular/core';

  providedIn: 'root'
export class PeopleService {

  peopleData = [
    {name: 'Jack', age: 29, country: 'USA'},
    {name: 'Rosy', age: 23, country: 'UK'},
    {name: 'Peter', age: 29, country: 'Austria'},
    {name: 'Robert', age: 47, country: 'Canada'},
    {name: 'Lila', age: 42, country: 'India'}

  constructor() { }

  getPeopleData() {
    return (this.peopleData);

  1. You'll get the following result.

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