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Custom Adapter for webapi - Intercepting only the get request

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142598 Feb 11,2019 09:05 PM UTC Feb 12,2019 07:13 AM UTC JavaScript - EJ 2 1
Tags: Grid
Asked On February 11, 2019 09:05 PM UTC

I have a webapi backend and a grid javascript frontend

my controller looks like this 

and on client i get this 

and it works great with this 

So far no problem.

Now i want to return this from my controller 

but I cant extract my custom property "ColumnDefinition" on the client side

How can i extract or access my property "ColumnDefinition" while everything else keeps working as ususal?
Maybe the question is how can i intercept only the get request while leaving the rest to behave as usual?

Thank you

Madhu Sudhanan P [Syncfusion]
Replied On February 12, 2019 07:13 AM UTC

Hi Samuel, 

Thanks for contacting Syncfusion support. 

You can access the custom/additional properties send to client by extending the processResponse method of the WebApiAdaptor as follows.  

    var customAdaptor = new ej.data.WebApiAdaptor(); 
    //Extend the web api adaptor. 
    ej.base.extend(customAdaptor, { 
      processResponse: function(data, ds, query, xhr, request, changes) { 
        let customProperty = data.ColumnDefinition; //Get the custom property here. 
        return ej.data.WebApiAdaptor.prototype.processResponse.call(this, data, ds, query, xhr, request, changes) 
    var data = new ej.data.DataManager({ 
        url: hostUrl + 'api/Orders', 
        adaptor: customAdaptor, 
        crossDomain: true 

Madhu Sudhanan P 


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