public static void Main(string[] args)
{
ArgumentHelper helper = new ArgumentHelperBuilder("JetStream Publish", args, Usage)
.DefaultStream("example-stream")
.DefaultSubject("example-subject")
.DefaultPayload("Hello")
.DefaultCount(10)
.Build();
try
{
using (IConnection c = new ConnectionFactory().CreateConnection(helper.MakeOptions()))
{
// Use the utility to create a stream stored in memory.
JsUtils.CreateStreamOrUpdateSubjects(c, helper.Stream, helper.Subject);
// create a JetStream context
IJetStream js = c.CreateJetStreamContext();
int stop = helper.Count < 2 ? 2 : helper.Count + 1;
for (int x = 1; x < stop; x++)
{
// make unique message data if you want more than 1 message
byte[] data = helper.Count < 2
? Encoding.UTF8.GetBytes(helper.Payload)
: Encoding.UTF8.GetBytes(helper.Payload + "-" + x);
// Publish a message and print the results of the publish acknowledgement.
Msg msg = new Msg(helper.Subject, null, helper.Header, data);
// We'll use the defaults for this simple example, but there are options
// to constrain publishing to certain streams, expect sequence numbers and
// more. See the JetStreamPublishWithOptionsUseCases example for details.
// An exception will be thrown if there is a failure.
PublishAck pa = js.Publish(msg);
Console.WriteLine("Published message '{0}' on subject '{1}', stream '{2}', seqno '{3}'.",
Encoding.UTF8.GetString(data), helper.Subject, pa.Stream, pa.Seq);
}
}
}
catch (Exception ex)
{
helper.ReportException(ex);
}
}
public static void Main(string[] args)
{
ArgumentHelper helper = new ArgumentHelperBuilder("JetStream Publish Async", args, Usage)
.DefaultStream("example-stream")
.DefaultSubject("example-subject")
.DefaultPayload("Hello")
.DefaultCount(10)
.Build();
try
{
using (IConnection c = new ConnectionFactory().CreateConnection(helper.MakeOptions()))
{
// Use the utility to create a stream stored in memory.
JsUtils.CreateStreamOrUpdateSubjects(c, helper.Stream, helper.Subject);
// create a JetStream context
IJetStream js = c.CreateJetStreamContext();
IList <Task <PublishAck> > tasks = new List <Task <PublishAck> >();
int stop = helper.Count < 2 ? 2 : helper.Count + 1;
for (int x = 1; x < stop; x++)
{
// make unique message data if you want more than 1 message
byte[] data = helper.Count < 2
? Encoding.UTF8.GetBytes(helper.Payload)
: Encoding.UTF8.GetBytes(helper.Payload + "-" + x);
// Publish a message and print the results of the publish acknowledgement.
Msg msg = new Msg(helper.Subject, null, helper.Header, data);
// We'll use the defaults for this simple example, but there are options
// to constrain publishing to certain streams, expect sequence numbers and
// more. See the JetStreamPublishWithOptionsUseCases example for details.
// An exception will be thrown if there is a failure.
tasks.Add(js.PublishAsync(msg));
while (tasks.Count > 0)
{
Task <PublishAck> task = tasks[0];
tasks.RemoveAt(0);
if (task.IsCompleted)
{
try
{
PublishAck pa = task.Result;
Console.WriteLine("Published message {0} on subject {1}, stream {2}, seqno {3}.",
Encoding.UTF8.GetString(data), helper.Subject, pa.Stream, pa.Seq);
}
catch (Exception e)
{
Console.WriteLine("Publish Failed: " + e);
}
}
else
{
// re queue so will be checked for completed again
tasks.Add(task);
}
}
}
}
}
catch (Exception ex)
{
helper.ReportException(ex);
}
}