@syncfusion/ej2-data is a data management package to perform data operations in client application.
and remote data source - web services returning JSON, JSONP, oData or XML.
DataManager - Communicates with data source and returns the desired result based on the Query provided.
CRUD in individual requests and Batch – CRUD operations are fully supported.
The options are enabled to commit the data as a single or multiple requests.
Adaptors – Adaptors are specific dataSource type interfaces that are used by DataManager to communicate with DataSource.
DataManager have three in-built adaptors. They are, ODataAdaptor, JsonAdaptor and UrlAdaptor.
Calculate and maintain aggregates, sorting order and paging.