Dose ZOHO Creator Support a True JSON POST ?

Dose ZOHO Creator Support a True JSON POST ?

I want to make POST Request to Google Calender API and its Content Type is in JSON Format for example look image1.

see its content type is in JSON Format and i am Writing code which will make POST Request to Google Calender API but ZOHO is not sending the JSON format to Google Calender API. what should i do to force it to change in JSON Format. here is something i am geeting look image2=

So how i force ZOHO to Change its Content Type to JSON and i Want to Send Actual JSON From ZOHO to Google API but its not actual JSON format we are transfering from zoho , we are converting it to String and then we are sending it to GOOGLe Calendar API. 

Please Help me in this case to get me knowledge about making POST call through ZOHO to Google Calendar API.

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