in IoT-Sample/Swift/IoTSampleSwift/ConnectionViewController.swift [290:302]
func initializeDataPlane(credentialsProvider: AWSCredentialsProvider) {
//Initialize Dataplane:
// IoT Dataplane must use your account specific IoT endpoint
let iotEndPoint = AWSEndpoint(urlString: IOT_ENDPOINT)
// Configuration for AWSIoT data plane APIs
let iotDataConfiguration = AWSServiceConfiguration(region: AWS_REGION,
endpoint: iotEndPoint,
credentialsProvider: credentialsProvider)
//IoTData manager operates on xxxxxxx-iot.<region>.amazonaws.com
AWSIoTDataManager.register(with: iotDataConfiguration!, forKey: AWS_IOT_DATA_MANAGER_KEY)
iotDataManager = AWSIoTDataManager(forKey: AWS_IOT_DATA_MANAGER_KEY)
}