Config Azure application proxy using the graph API

I added StackOverflow post explaining the issue. It would be great to release endpoints that I could use to configure Application Proxy. 

The list of the endpoints:

PATCH https://graph.microsoft.com/beta/applications/bf21f7e9-9d25-4da2-82ab-7fdd85049f83
Content-type: application/json

{
    "onPremisesPublishing": {
        "externalAuthenticationType": "aadPreAuthentication",
        "internalUrl": "https://contosoiwaapp.com",
        "externalUrl": "https://contosoiwaapp-contoso.msappproxy.net",
        "isHttpOnlyCookieEnabled": true,
        "isOnPremPublishingEnabled": true,
        "isPersistentCookieEnabled": true,
        "isSecureCookieEnabled": true,
        "isStateSessionEnabled": true,
        "isTranslateHostHeaderEnabled": true,
        "isTranslateLinksInBodyEnabled": true
    }
}

GET https://graph.microsoft.com/beta/onPremisesPublishingProfiles/applicationProxy/connectors

POST https://graph.microsoft.com/beta/onPremisesPublishingProfiles/applicationProxy/connectorGroups

Content-type: application/json
{
  "name": "IWA Demo Connector Group"
}

PUT https://graph.microsoft.com/beta/applications/bf21f7e9-9d25-4da2-82ab-7fdd85049f83/connectorGroup/$ref
Content-type: application/json

{
"@odata.id":"https://graph.microsoft.com/onPremisesPublishingProfiles/applicationproxy/connectorGroups/3e6f4c35-a04b-4d03-b98a-66fff89b72e6"
}

PATCH https://graph.microsoft.com/beta/applications/bf21f7e9-9d25-4da2-82ab-7fdd85049f83
Content-type: appplication/json

{
  "onPremisesPublishing": {
    "singleSignOnSettings": {
      "kerberosSignOnSettings": {
        "kerberosServicePrincipalName": "HTTP/iwademo.contoso.com",
   	    "kerberosSignOnMappingAttributeType": "userPrincipalName"
      },
      "singleSignOnMode": "onPremisesKerberos"
    }
  } 
}

GET https://graph.microsoft.com/beta/servicePrincipals/a8cac399-cde5-4516-a674-819503c61313/appRoles

POST https://graph.microsoft.com/beta/servicePrincipals/b00c693f-9658-4c06-bd1b-c402c4653dea/appRoleAssignments
Content-type: appRoleAssignments/json

{
  "principalId": "4628e7df-dff3-407c-a08f-75f08c0806dc",
  "principalType": "User",
  "appRoleId":"18d14569-c3bd-439b-9a66-3a2aee01d14f",
  "resourceId":"a8cac399-cde5-4516-a674-819503c61313"
}