public async Task DigitalTwinClient_Http_TokenCredentialAuth_Success()
{
// arrange
TestDevice testDevice = await TestDevice.GetTestDeviceAsync(Logger, _devicePrefix).ConfigureAwait(false);
string thermostatModelId = "dtmi:com:example:TemperatureController;1";
// Create a device client instance initializing it with the "Thermostat" model.
var options = new ClientOptions
{
ModelId = thermostatModelId,
};
using DeviceClient deviceClient = testDevice.CreateDeviceClient(Client.TransportType.Mqtt, options);
// Call openAsync() to open the device's connection, so that the ModelId is sent over Mqtt CONNECT packet.
await deviceClient.OpenAsync().ConfigureAwait(false);
using var digitalTwinClient = DigitalTwinClient.Create(
Configuration.IoTHub.GetIotHubHostName(),
Configuration.IoTHub.GetClientSecretCredential());
// act
HttpOperationResponse <ThermostatTwin, DigitalTwinGetHeaders> response = await digitalTwinClient
.GetDigitalTwinAsync <ThermostatTwin>(testDevice.Id)
.ConfigureAwait(false);
ThermostatTwin twin = response.Body;
// assert
twin.Metadata.ModelId.Should().Be(thermostatModelId);
// cleanup
await testDevice.RemoveDeviceAsync().ConfigureAwait(false);
}
public async Task DigitalTwinWithOnlyRootComponentOperationsAsync()
{
// Create a new test device instance.
TestDevice testDevice = await TestDevice.GetTestDeviceAsync(Logger, _devicePrefix).ConfigureAwait(false);
string deviceId = testDevice.Id;
try
{
// Create a device client instance over Mqtt, initializing it with the "Thermostat" model which has only a root component.
var options = new ClientOptions
{
ModelId = ThermostatModelId,
};
using DeviceClient deviceClient = testDevice.CreateDeviceClient(Client.TransportType.Mqtt, options);
// Call openAsync() to open the device's connection, so that the ModelId is sent over Mqtt CONNECT packet.
await deviceClient.OpenAsync().ConfigureAwait(false);
// Perform operations on the digital twin.
using var digitalTwinClient = DigitalTwinClient.CreateFromConnectionString(s_connectionString);
// Retrieve the digital twin.
HttpOperationResponse <ThermostatTwin, DigitalTwinGetHeaders> response =
await digitalTwinClient.GetDigitalTwinAsync <ThermostatTwin>(deviceId).ConfigureAwait(false);
ThermostatTwin twin = response.Body;
twin.Metadata.ModelId.Should().Be(ThermostatModelId);
// Set callback handler for receiving root-level twin property updates.
await deviceClient.SetDesiredPropertyUpdateCallbackAsync((patch, context) =>
{
Logger.Trace($"{nameof(DigitalTwinWithComponentOperationsAsync)}: DesiredProperty update received: {patch}, {context}");
return(Task.FromResult(true));
}, deviceClient);
// Update the root-level property "targetTemperature".
string propertyName = "targetTemperature";
double propertyValue = new Random().Next(0, 100);
var ops = new UpdateOperationsUtility();
ops.AppendAddPropertyOp($"/{propertyName}", propertyValue);
string patch = ops.Serialize();
HttpOperationHeaderResponse <DigitalTwinUpdateHeaders> updateResponse =
await digitalTwinClient.UpdateDigitalTwinAsync(deviceId, patch);
updateResponse.Response.StatusCode.Should().Be(HttpStatusCode.Accepted);
// Set callback to handle root-level command invocation request.
int expectedCommandStatus = 200;
string commandName = "getMaxMinReport";
await deviceClient.SetMethodHandlerAsync(commandName,
(request, context) =>
{
Logger.Trace($"{nameof(DigitalTwinWithOnlyRootComponentOperationsAsync)}: Digital twin command received: {request.Name}.");
string payload = JsonConvert.SerializeObject(request.Name);
return(Task.FromResult(new MethodResponse(Encoding.UTF8.GetBytes(payload), expectedCommandStatus)));
},
null);
// Invoke the root-level command "getMaxMinReport" on the digital twin.
DateTimeOffset since = DateTimeOffset.Now.Subtract(TimeSpan.FromMinutes(1));
string payload = JsonConvert.SerializeObject(since);
HttpOperationResponse <DigitalTwinCommandResponse, DigitalTwinInvokeCommandHeaders> commandResponse =
await digitalTwinClient.InvokeCommandAsync(deviceId, commandName, payload).ConfigureAwait(false);
commandResponse.Body.Status.Should().Be(expectedCommandStatus);
commandResponse.Body.Payload.Should().Be(JsonConvert.SerializeObject(commandName));
}
finally
{
// Delete the device.
await testDevice.RemoveDeviceAsync().ConfigureAwait(false);
}
}
