static void Main(string[] _)
{
const string newsHeadlinesEndpoint = "https://api.refinitiv.com/message-services/v1/news-headlines/subscriptions";
try
{
// Create the platform session.
using (ISession session = Configuration.Sessions.GetSession())
{
// Open the session
session.Open();
// Create a QueueManager to actively manage our queues
IQueueManager manager = DeliveryFactory.CreateQueueManager(new QueueManager.Params().Session(session)
.Endpoint(newsHeadlinesEndpoint)
.OnError((qm, err) => Console.WriteLine(err)));
// First, check to see if we have any news headline queues active in the cloud...
List <IQueue> queues = manager.GetAllQueues();
// Check the error property to determine the result of the last request
if (manager.Error == null)
{
// Determine if we retrieved an active headline queue...create one if not.
IQueue queue;
if (queues.Count > 0)
{
queue = queues[0];
}
else
{
queue = CreateQueue(manager, "AA"); // Create a Queue with the new query expression ("AA" - alerts only)
}
// Ensure our queue is created
if (queue != null)
{
Console.WriteLine($"{Environment.NewLine}{(queues.Count > 0 ? "Using existing" : "Created a new")} queue. Waiting for headlines...");
// Subscribe to the queue.
// Note: The subscriber interface has 2 mechanisms to retrieve data from the queue. The first mechanism is to selectively
// poll the queue for new messages. The second mechanism is to define a callback/lambda expression and notify the
// the subscriber to poll for messages as they come in - this mechansim provides a near realtime result.
//
// The following example demonstrates the first mechanism.
IQueueSubscriber subscriber = DeliveryFactory.CreateQueueSubscriber(new AWSQueueSubscriber.Params().Queue(queue));
// Poll the queue until we hit any key on the keyboard.
// Each poll will timeout after 5 seconds.
while (!Console.KeyAvailable)
{
IQueueResponse result = subscriber.GetNextMessage(5);
if (result.IsSuccess)
{
DisplayHeadline(result);
}
else
{
Console.WriteLine(result.Status);
}
}
Console.ReadKey();
// Prompt the user to delete the queue
Console.Write("\nDelete the queue (Y/N) [N]: ");
var delete = Console.ReadLine();
if (delete?.ToUpper() == "Y")
{
if (manager.DeleteQueue(queue))
{
Console.WriteLine("Successfully deleted queue.");
}
else
{
Console.WriteLine($"Issues deleting queue {manager.Error}");
}
}
}
}
}
}
catch (Exception e)
{
Console.WriteLine($"\n**************\nFailed to execute: {e.Message}\n{e.InnerException}\n***************");
}
}
static void Main(string[] _)
{
const string researchEndpoint = "https://api.refinitiv.com/message-services/v1/research/subscriptions";
try
{
using (ISession session = Configuration.Sessions.GetSession())
{
if (session.Open() == Session.State.Opened)
{
// Create a QueueManager to actively manage our queues
IQueueManager manager = DeliveryFactory.CreateQueueManager(new QueueManager.Params().Session(session)
.Endpoint(researchEndpoint)
.OnError((qm, err) => Console.WriteLine(err)));
// First, check to see if we have any news headline queues active in the cloud...
List <IQueue> queues = manager.GetAllQueues();
// Check the error property to determine the result of the last request
if (manager.Error == null)
{
// Prepare Research criteria if we plan to create a new AWS queue - we must supply a research ID.
JObject criteria = new JObject()
{
["transport"] = new JObject()
{
["transportType"] = "AWS-SQS"
},
["payloadVersion"] = "2.0",
["userID"] = Configuration.Credentials.ResearchID
};
// If no existing queue exists, create one.
IQueue queue = (queues.Count > 0 ? queues[0] : manager.CreateQueue(criteria));
if (queue != null)
{
Console.WriteLine($"{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.
IQueueSubscriber subscriber = DeliveryFactory.CreateQueueSubscriber(new AWSQueueSubscriber.Params().Queue(queue));
Console.WriteLine("Attempt to retrieve research messages. Hit any key to interrupt fetching...");
// Instead of defining a lambda callback, we manually poll the queue until we hit any key on the keyboard.
// Each poll will timeout after 5 seconds.
bool noMsgAvailable = false;
while (!Console.KeyAvailable)
{
IQueueResponse result = subscriber.GetNextMessage(5);
if (result.IsSuccess)
{
if (result.IsMessageAvailable)
{
DisplayResearch(result);
}
else
{
Console.Write(noMsgAvailable ? "." : "No Message available from GetNextMessage");
}
noMsgAvailable = !result.IsMessageAvailable;
}
else
{
Console.WriteLine(result.Status);
}
}
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($"Issues deleting queue {manager.Error}");
}
}
}
}
}
}
}
catch (Exception e)
{
Console.WriteLine($"\n**************\nFailed to execute: {e.Message}\n{e.InnerException}\n***************");
}
}