I have implemented a singleton service to manage shared data in my Angular application. The code for the service can be seen below:
import { Injectable } from '@angular/core';
@Injectable({
providedIn: 'root'
})
export class DataSharingService {
private sharedData: any;
constructor() { }
public setSharedData(data: any): void {
this.sharedData = data;
}
public getSharedData(): any {
return this.sharedData;
}
}In the following component, I am utilizing the above service to share and retrieve data. Here is the implementation:
import { Component, OnInit } from '@angular/core';
import { DataSharingService } from '../data-sharing.service';
@Component({
selector: 'app-data-component',
templateUrl: './data.component.html',
styleUrls: ['./data.component.css']
})
export class DataComponent implements OnInit {
constructor(private dataSharingService: DataSharingService) { }
ngOnInit() {
// Initialization logic here
}
setDataAsShared(data: any) {
this.dataSharingService.setSharedData(data);
}
getDataFromShared(): any {
return this.dataSharingService.getSharedData();
}
}However, when trying to access the shared data in a different component (shown below), I encounter an issue where the data is returned as undefined:
import { Component, OnInit } from '@angular/core';
import { DataSharingService } from '../data-sharing.service';
@Component({
selector: 'app-receiving-component',
templateUrl: './receiving-component.html',
styleUrls: ['./receiving-component.css'],
})
export class ReceivingComponent implements OnInit {
sharedData: any;
constructor(private dataSharingService: DataSharingService) { }
ngOnInit() {
this.sharedData = this.dataSharingService.getSharedData();
console.log(this.sharedData);
}
}This issue has been quite perplexing as the shared data appears to be correctly updated in the service, but retrieving it in another module always results in undefined. Any insights or solutions would be greatly appreciated.