Connection from CRM to Creator

Connection from CRM to Creator

Dear all, I come seeking wisdom.
My scenario is this:
I have a Javascript widget in CRM. It is attached to the Leads Module.
I want the CRM widget to connect to a form in Creator, where Countries are stored.
The Countries in the Creator form appear in a dropdown list in the Leads Module.
How can I achieve this? Could anyone please help me with sample code for this please? I am trying to use the Oauth Connection from CRM.
The sample given by Zoho is in JSON format, but I have no idea what to do with it.
There is also a Deluge Example (photo attached) but I have to get my code in Javascript.
I would really appreciate any help.
{
"connectionLinkName": "creatorwidget",
"connectionName": "Creator",
"serviceName": *****_integration",
"userAccess": false,
"isUserDefinedService": false,
"sharedBy": "123123123",
"scope": [
"ZohoCreator.meta.READ",
"ZohoCreator.data.READ",
"ZohoCreator.meta.CREATE",
"ZohoCreator.data.CREATE",
"ZohoCreator.report.DELETE",
"ZohoCreator.report.UPDATE",
"ZohoCreator.meta.application.READ",
"ZohoCreator.meta.form.READ",
"ZohoCreator.dashboard.READ",
"ZohoCreator.report.CREATE",
"ZohoCreator.form.CREATE",
"ZohoCreator.report.READ"
]
}
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