private async Task <string> CreateDeploymentGroupStepAsync()
{
string groupId = _deviceTag;
bool createNewGroup = false;
ConsoleEx.WriteLine(ConsoleColor.Yellow, "Querying deployment group...");
try
{
Response <Group> groupResponse = await _devicesClient.GetGroupAsync(groupId);
Console.WriteLine($"Deployment group {groupId} already exists.");
}
catch (RequestFailedException e)
{
if (e.Status == (int)HttpStatusCode.NotFound)
{
createNewGroup = true;
}
}
if (createNewGroup)
{
ConsoleEx.WriteLine(ConsoleColor.Yellow, "Creating deployment group...");
Response <Group> groupResponse = await _devicesClient.CreateOrUpdateGroupAsync(
groupId,
new Group(
groupId,
GroupType.IoTHubTag,
new[]
{
groupId
},
DateTimeOffset.UtcNow.ToString()));
if (groupResponse.Value != null)
{
Console.WriteLine($"Group {groupId} created.");
Console.WriteLine();
ConsoleEx.WriteLine(ConsoleColor.Yellow, "Waiting for the group to be populated with devices...");
Console.WriteLine("(this may take about five minutes to complete)");
bool repeat = true;
while (repeat)
{
groupResponse = await _devicesClient.GetGroupAsync(groupId);
if (groupResponse.Value.DeviceCount > 0)
{
Console.WriteLine($"Deployment group {groupId} now has {groupResponse.Value.DeviceCount} devices.");
repeat = false;
}
else
{
Console.Write(".");
await Task.Delay(DefaultRetryAfterValue);
}
}
}
}
Console.WriteLine();
return(groupId);
}