configuration.json

{
    "TokenEndpoint": "https://<AzureSubscriptionRegionHere>.api.cognitive.microsoft.com/sts/v1.0/issuetoken",
    "CustomEndpoints": [{
        "Name": "",
        "Uri": ""
    }],
    "SubscriptionRegion": "",
    "CognitiveServicesAccount": {
        "Name": "",
        "ResourceGroupName": ""
    }
}