async Task <Tuple <string, string> > CreateBlockBlobAsync(string accountName, string containerName)
{
string rval = string.Empty;
string credentialString = string.Empty;
// Construct the blob container endpoint from the arguments.
string containerEndpoint = $"https://{accountName}.blob.core.windows.net/{containerName}";
// Get a credential and create a client object for the blob container.
var credential = new DefaultAzureCredential();
credentialString = credential.ToString();
BlobContainerClient containerClient = new BlobContainerClient(new Uri(containerEndpoint),
credential);
try
{
// Create the container if it does not exist.
await containerClient.CreateIfNotExistsAsync();
// Upload text to a new block blob.
string blobContents = "This is a block blob.";
byte[] byteArray = Encoding.ASCII.GetBytes(blobContents);
using (MemoryStream stream = new MemoryStream(byteArray))
{
var blobName = System.Environment.TickCount.ToString() + ".txt";
await containerClient.UploadBlobAsync(blobName, stream);
rval = blobName;
}
}
catch (RequestFailedException e)
{
Console.WriteLine(e.Message);
Console.ReadLine();
throw;
}
return(new Tuple <string, string>(rval, credentialString));
}
public async void Run([EventGridTrigger] EventGridEvent eventGridEvent, ILogger log)
{
try
{
// After this is deployed, you need to turn the Managed Identity Status to "On",
// Grab Object Id of the function and assigned "Azure Digital Twins Owner (Preview)" role
// to this function identity in order for this function to be authorized on ADT APIs.
//Authenticate with Digital Twins
var credentials = new DefaultAzureCredential();
log.LogInformation(credentials.ToString());
DigitalTwinsClient client = new DigitalTwinsClient(
new Uri(adtServiceUrl), credentials, new DigitalTwinsClientOptions
{
Transport = new HttpClientTransport(httpClient)
});
log.LogInformation($"ADT service client connection created.");
if (eventGridEvent.Data.ToString().Contains("Alert"))
{
JObject alertMessage = (JObject)JsonConvert.DeserializeObject(eventGridEvent.Data.ToString());
string deviceId = (string)alertMessage["systemProperties"]["iothub-connection-device-id"];
var ID = alertMessage["body"]["TurbineID"];
var alert = alertMessage["body"]["Alert"];
log.LogInformation($"Device:{deviceId} Device Id is:{ID}");
log.LogInformation($"Device:{deviceId} Alert Status is:{alert}");
var updateProperty = new JsonPatchDocument();
updateProperty.AppendReplace("/Alert", alert.Value <bool>());
updateProperty.AppendReplace("/TurbineID", ID.Value <string>());
log.LogInformation(updateProperty.ToString());
try
{
await client.UpdateDigitalTwinAsync(deviceId, updateProperty);
}
catch (Exception e)
{
log.LogInformation(e.Message);
}
}
else if (eventGridEvent != null && eventGridEvent.Data != null)
{
JObject deviceMessage = (JObject)JsonConvert.DeserializeObject(eventGridEvent.Data.ToString());
string deviceId = (string)deviceMessage["systemProperties"]["iothub-connection-device-id"];
var ID = deviceMessage["body"]["TurbineID"];
var TimeInterval = deviceMessage["body"]["TimeInterval"];
var Description = deviceMessage["body"]["Description"];
var Code = deviceMessage["body"]["Code"];
var WindSpeed = deviceMessage["body"]["WindSpeed"];
var Ambient = deviceMessage["body"]["Ambient"];
var Rotor = deviceMessage["body"]["Rotor"];
var Power = deviceMessage["body"]["Power"];
log.LogInformation($"Device:{deviceId} Device Id is:{ID}");
log.LogInformation($"Device:{deviceId} Time interval is:{TimeInterval}");
log.LogInformation($"Device:{deviceId} Description is:{Description}");
log.LogInformation($"Device:{deviceId} CodeNumber is:{Code}");
log.LogInformation($"Device:{deviceId} WindSpeed is:{WindSpeed}");
log.LogInformation($"Device:{deviceId} Ambient Temperature is:{Ambient}");
log.LogInformation($"Device:{deviceId} Rotor RPM is:{Rotor}");
log.LogInformation($"Device:{deviceId} Power is:{Power}");
var updateProperty = new JsonPatchDocument();
var turbineTelemetry = new Dictionary <string, Object>()
{
["TurbineID"] = ID,
["TimeInterval"] = TimeInterval,
["Description"] = Description,
["Code"] = Code,
["WindSpeed"] = WindSpeed,
["Ambient"] = Ambient,
["Rotor"] = Rotor,
["Power"] = Power
};
updateProperty.AppendAdd("/TurbineID", ID.Value <string>());
log.LogInformation(updateProperty.ToString());
try
{
await client.PublishTelemetryAsync(deviceId, Guid.NewGuid().ToString(), JsonConvert.SerializeObject(turbineTelemetry));
}
catch (Exception e)
{
log.LogInformation(e.Message);
}
}
}
catch (Exception e)
{
log.LogInformation(e.Message);
}
}
