Enable Cache in Angular Data component

26 Mar 20252 minutes to read

The Syncfusion DataManager provides the enableCache property, which enhances performance by reducing redundant HTTP requests for previously visited pages. When caching is enabled, the DataManager retrieves data from the cache instead of sending a new request, minimizing server load and improving user experience.

How it works

  • When enableCache is set to true, the DataManager generates a unique ID at initialization and uses it to store previously loaded page data in cache memory. This enables efficient data retrieval without redundant server requests.
  • The cache is automatically cleared when data actions such as sorting, filtering, grouping, searching, or CRUD operations (Create, Read, Update, Delete) are performed.
  • This feature is supported by all adaptors in Syncfusion DataManager, ensuring consistent caching behavior across different data sources.

The following example demonstrates how to enable caching using the enableCache property in the Syncfusion Angular DataManager:

import { Component, OnInit } from '@angular/core';
import { DataManager, WebApiAdaptor } from '@syncfusion/ej2-data';

@Component({
  selector: 'app-root',
  template: `
    <ejs-grid [dataSource]="data">
      <e-columns>
        <e-column field="OrderID" headerText="Order ID" width="100" textAlign="Right"></e-column>
        <e-column field="CustomerID" headerText="Customer ID" width="100"></e-column>
        <e-column field="EmployeeID" headerText="Employee ID" textAlign="Right" width="100"></e-column>
        <e-column field="OrderDate" headerText="Order Date" format="yMd" textAlign="Right" width="120"></e-column>
      </e-columns>
    </ejs-grid>
  `
})
export class AppComponent implements OnInit {
  public data: DataManager;

  ngOnInit(): void {
    this.data = new DataManager({
        url: 'https://services.syncfusion.com/angular/production/api/Orders',
        adaptor: new WebApiAdaptor(),
        crossDomain: true,
        enableCache: true // Enables caching to prevent repeated HTTP requests.
    });
  }
}