static void Main(string[] _)
{
const string newsStoriesEndpoint = "https://api.refinitiv.com/message-services/v1/news-stories/subscriptions";
try
{
using (ISession session = Configuration.Sessions.GetSession())
{
// Open the session
session.Open();
// Create our stories definition
var definition = Queue.Definition(newsStoriesEndpoint);
// Create a QueueManager to actively manage our queues
IQueueManager manager = definition.CreateQueueManager().OnError((err, qm) => Console.WriteLine(err));
// First, check to see if we have any news headline queues active in the cloud...
var queues = manager.GetAllQueues();
// If no existing queue exists, create one.
IQueueNode queue = (queues.Count > 0 ? queues[0] : manager.CreateQueue());
// Ensure our queue is created
if (queue != null)
{
Console.WriteLine($"{Environment.NewLine}{(queues.Count > 0 ? "Using existing" : "Created a new")} queue. Waiting for stories...");
// Subscribe to the queue.
// Note: The subscriber interface has 2 mechanisms to retrieve data from the queue. The first mechanism is to selectively
// poll the queue for new messages. The second mechanism is to define a callback/lambda expression and notify the
// the subscriber to poll for messages as they come in - this mechansim provides a near realtime result.
//
// The following example demonstrates the second mechanism.
IQueueSubscriber subscriber = definition.CreateAWSSubscriber(queue);
// Open the subscriber to begin polling for messages. Use Async() as this method is a long running task.
var task = subscriber.StartPollingAsync((story, s) => DisplayStory(story));
Console.ReadKey();
// Close the subscription - stops polling for messages
subscriber.StopPolling();
task.GetAwaiter().GetResult();
Console.WriteLine("Stopped polling for messages from the queue.");
// Prompt the user to delete the queue
Console.Write("Delete the queue (Y/N) [N]: ");
var delete = Console.ReadLine();
if (delete?.ToUpper() == "Y")
{
if (manager.DeleteQueue(queue))
{
Console.WriteLine("Successfully deleted queue.");
}
else
{
Console.WriteLine($"Issues deleting queue.");
}
}
}
}
}
catch (Exception e)
{
Console.WriteLine($"\n**************\nFailed to execute: {e.Message}\n{e.InnerException}\n***************");
}
}
static void Main(string[] _)
{
const string researchEndpoint = "https://api.refinitiv.com/message-services/v1/research/subscriptions";
try
{
using (ISession session = Configuration.Sessions.GetSession())
{
if (session.Open() == Session.State.Opened)
{
// Create our Research definition
var definition = Queue.Definition(researchEndpoint);
// Create a QueueManager to actively manage our queues
IQueueManager manager = definition.CreateQueueManager().OnError((err, qm) => Console.WriteLine(err));
// First, check to see if we have any research queues active in the cloud...
var queues = manager.GetAllQueues();
// Prepare Research criteria if we plan to create a new AWS queue - we must supply a research ID.
JObject criteria = new JObject()
{
["transport"] = new JObject()
{
["transportType"] = "AWS-SQS"
},
["payloadVersion"] = "2.0",
["userID"] = Configuration.Credentials.ResearchID
};
// If no existing queue exists, create one.
IQueueNode queue = (queues.Count > 0 ? queues[0] : manager.CreateQueue(criteria));
if (queue != null)
{
Console.WriteLine($"{Environment.NewLine}{(queues.Count > 0 ? "Using existing" : "Created a new")} queue...");
// Subscribe to the queue.
// Note: The subscriber interface has 2 mechanisms to retrieve data from the queue. The first mechanism is to selectively
// poll the queue for new messages. The second mechanism is to define a callback/lambda expression and notify the
// the subscriber to poll for messages as they come in - this mechansim provides a near realtime result.
//
// The following example demonstrates the first mechanism.
var subscriber = definition.CreateAWSSubscriber(queue);
// Poll the queue until we hit any key on the keyboard.
// Each poll will timeout after 2 seconds if not messages arrive.
Console.WriteLine("Attempt to retrieve research messages. Hit any key to interrupt fetching...");
while (!Console.KeyAvailable)
{
subscriber.GetNextMessage(2, (research, s) => DisplayResearch(research));
}
Console.ReadKey();
// Prompt the user to delete the queue
Console.Write("\nDelete the queue (Y/N) [N]: ");
var delete = Console.ReadLine();
if (delete?.ToUpper() == "Y")
{
if (manager.DeleteQueue(queue))
{
Console.WriteLine("Successfully deleted queue.");
}
else
{
Console.WriteLine($"Issues deleting queue.");
}
}
}
}
}
}
catch (Exception e)
{
Console.WriteLine($"\n**************\nFailed to execute: {e.Message}\n{e.InnerException}\n***************");
}
}
static void Main(string[] _)
{
const string newsHeadlinesEndpoint = "https://api.refinitiv.com/message-services/v1/news-headlines/subscriptions";
IQueueManager manager = null;
IQueueNode queue = null;
try
{
// Create the platform session.
ISession session = Configuration.Sessions.GetSession();
// Open the session
session.Open();
// Create a queue definition
var definition = Queue.Definition(newsHeadlinesEndpoint);
// Create a QueueManager to actively manage our queues
manager = definition.CreateQueueManager().OnError((err, qm) => Console.WriteLine(err));
// First, check to see if we have any news headline queues active in the cloud...
List <IQueueNode> queues = manager.GetAllQueues();
// Determine if we retrieved an active headline queue...create one if not.
if (queues.Count > 0)
{
queue = queues[0];
}
else
{
// News Expression defining "Alerts only"
var alerts = new JObject()
{
["repositories"] = new JArray("NewsWire"),
["filter"] = new JObject()
{
["type"] = "urgency",
["value"] = "Alert"
},
["maxcount"] = 10,
["relevanceGroup"] = "all"
};
queue = manager.CreateQueue(alerts);
}
// Ensure our queue is created
if (queue != null)
{
Console.WriteLine($"{Environment.NewLine}{(queues.Count > 0 ? "Using existing" : "Created a new")} queue. Waiting for headlines...");
// Subscribe to the queue.
// Note: The subscriber interface has 2 mechanisms to retrieve data from the queue. The first mechanism is to selectively
// poll the queue for new messages. The second mechanism is to define a callback/lambda expression and notify the
// the subscriber to poll for messages as they come in - this mechansim provides a near realtime result.
//
// The following example demonstrates the first mechanism.
var subscriber = definition.CreateAWSSubscriber(queue);
// Poll the queue until we hit any key on the keyboard.
// Each poll will timeout after 2 seconds if no messages arrive.
var task = new CancellationTokenSource();
var run = Task.Run(() =>
{
try
{
while (!task.IsCancellationRequested)
{
subscriber.GetNextMessage(20, (headline, s) => DisplayHeadline(headline), task.Token);
}
}
catch (TaskCanceledException)
{
Console.WriteLine("News polling cancelled by user");
}
});
Console.ReadKey();
task.Cancel();
run.GetAwaiter().GetResult();
}
}
catch (Exception e)
{
Console.WriteLine($"\n**************\nFailed to execute: {e.Message}\n{e.InnerException}\n***************");
}
finally
{
if (manager is IQueueManager && queue is IQueueNode)
{
// Prompt the user to delete the queue
Console.Write("\nDelete the queue (Y/N) [N]: ");
var delete = Console.ReadLine();
if (delete?.ToUpper() == "Y")
{
if (manager.DeleteQueue(queue))
{
Console.WriteLine("Successfully deleted queue.");
}
else
{
Console.WriteLine($"Issues deleting queue.");
}
}
}
}
}
