After reviewing the initial implementation I found I had to have one connection per The Things Network(TTN) device. Todo this I first have to enumerate the LoRaWAN Devices for each Application in my instance. First I had to add the TTN APIKey to the application and device registry requests.
namespace devMobile.TheThingsNetwork.API
{
public partial class EndDeviceRegistryClient
{
public string ApiKey { set; get; }
partial void PrepareRequest(System.Net.Http.HttpClient client, System.Net.Http.HttpRequestMessage request, string url)
{
if (!client.DefaultRequestHeaders.Contains("Authorization"))
{
client.DefaultRequestHeaders.Add("Authorization", $"Bearer {ApiKey}");
}
}
}
public partial class ApplicationRegistryClient
{
public string ApiKey { set; get; }
partial void PrepareRequest(System.Net.Http.HttpClient client, System.Net.Http.HttpRequestMessage request, string url)
{
if (!client.DefaultRequestHeaders.Contains("Authorization"))
{
client.DefaultRequestHeaders.Add("Authorization", $"Bearer {ApiKey}");
}
}
}
}
The first step was to enumerate Applications and their attributes
#if FIELDS_MINIMUM
string[] fieldMaskPathsApplication = { "attributes" }; // think this is the bare minimum required for integration
#else
string[] fieldMaskPathsApplication = { "name", "description", "attributes" };
#endif
V3Applications applications = await applicationRegistryClient.ListAsync(collaborator, field_mask_paths: fieldMaskPathsApplication);
if ((applications != null) && (applications.Applications != null)) // If there are no applications returns null rather than empty list
{
foreach (V3Application application in applications.Applications)
{
#if FIELDS_MINIMUM
Console.WriteLine($"Application ID:{application.Ids.Application_id}");
#else
Console.WriteLine($"Application ID:{application.Ids.Application_id} Name:{application.Name} Description:{application.Description}");
Console.WriteLine($" CreatedAt: {application.Created_at:dd-MM-yy HH:mm:ss} UpdatedAt: {application.Updated_at:dd-MM-yy HH:mm:ss}");
#endif
if (application.Attributes != null)
{
Console.WriteLine(" Application attributes");
foreach (KeyValuePair<string, string> attribute in application.Attributes)
{
Console.WriteLine($" Key: {attribute.Key} Value: {attribute.Value}");
}
}
Console.WriteLine();
}
}
}
The applicationRegistryClient.ListAsync call returns null rather than an empty list which tripped me up. I only found this when I deleted all the applications in my instance and started from scratch.
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