Zoho Desk Extension channel with Connection

I am working on Zoho Desk Extension, Where I am using Channel Integration,

Which is working perfectly fine, Issue is with Authentication(Connections)

This is my channel Integration JSON

{
    "channel": {
        "resourceName": "MyAppChannel",
        "channelLogoPath"      : "/app/img/my-app-logo.png",
        "acceptAttachments"   : false,
        "updateRecords"       : true,
        "contentTypes"        : ["text/plain","text/html"],
        "redirectUrl"         : "https://myapp.com/",
        "includeQuotedMessage": false,
        "sync": {
            "push": "https://myapp.com/api/v1/zoho-app-channel-push",
            "pull": "https://myapp.com/api/v1/zoho-app-channel-pull"
        }
    }
}

How do I add Authentication (Connection) with Push and Pull APIs? As per the Zoho Docs We can achieve that with Invoke API, But there isn't any information on how to use Invoke API with Channel.