EagleML Web Service - Asynchronous Request
To make an asynchronous request, prepare the asynchronous RunTaskRequest message and call the RunTaskRequest method.
GenerateRunTaskRequest method as follows:
//create async runtaskrequest message for making SMF extract
    private static eagleSvc.WSRunTaskRequest GenerateRunTaskRequest()
    {
      //create WSRunTaskRequest object
      var runTaskRequest = new eagleSvc.WSRunTaskRequest();
      //create RunTaskRequest object
      var eagleML = new eagleSvc.RunTaskRequest();
      //create header section
      var header = new eagleSvc.RequestMessageHeader();
      //set messageId
      header.messageId = new eagleSvc.MessageId { Value = "ID:SMFEXTRACT01" };
      //set sendBy
      header.sentBy = new eagleSvc.MessageAddress { Value = "user" };
      //set sendTo , sendTo must be http://www.eagleinvsys.com/eagle_ml-2-0_default_cm_control_message
      header.sendTo = new eagleSvc.MessageAddress[1] {new eagleSvc.MessageAddress { Value = "http://www.eagleinvsys.com/eagle_ml-2-0_default_cm_control_message" }};
      //set timestamp
      header.creationTimestamp = DateTime.Now;
      eagleML.header = header;
      //create taskidentifier section
      var taskIdentifier = new eagleSvc.TaskIdentifier();
      //set correlationId, must be unique
      taskIdentifier.correlationId = new eagleSvc.CorrelationId { correlationIdScheme = "correlationIdScheme", Value = GenerateUID() };
      //set businessTaskId
      taskIdentifier.businessTaskId = new eagleSvc.CorrelationId { correlationIdScheme = "businessTaskIdScheme", Value = "ASYNC_SMFIST_EXTRACT" };
      eagleML.taskIdentifier = taskIdentifier;
      //set TaskTypeEnum
      eagleML.taskTypeEnum = eagleSvc.TaskTypeEnum.LOAD;
      //create and set task parameters
      var taskParameters = new eagleSvc.TaskParameter[4];
      taskParameters[0] = new eagleSvc.TaskParameter { name = "ActionType", dataType = eagleSvc.DataTypeEnum.S, value = "EXTRACT" };
      taskParameters[1] = new eagleSvc.TaskParameter { name = "StreamName", dataType = eagleSvc.DataTypeEnum.S, value = "eagle_ml-2-0_default_out_q" };
      taskParameters[2] = new eagleSvc.TaskParameter { name = "FeedType", dataType = eagleSvc.DataTypeEnum.S, value = "SMFEXTRACT" };
      taskParameters[3] = new eagleSvc.TaskParameter { name = "fromdate", dataType = eagleSvc.DataTypeEnum.S, value = "2014-12-04 18-00-00" };
      eagleML.taskParameters = taskParameters;
      runTaskRequest.EagleML = eagleML;
      return runTaskRequest;
    }
This method creates an async RunTaskRequest message to run an smf extract.
As soon as the RunTaskRequest message is created, the following request can be executed:
eagleSvc.WSTaskAcknowledgement ack1 = myClient.RunTaskRequest(runTaskRequest);
Execution returns a WS TaskAcknowledgement message, like this one:
GenerateRunTaskRequest method as follows:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:eag="http://www.eagleinvsys.com/2011/wsdl/EagleML-2-0" xmlns:eag1="http://www.eagleinvsys.com/2011/EagleML-2-0">
<soapenv:Header/>
<soapenv:Body>
<eag:taskAcknowledgement>
   <EagleML eaglemlVersion="2-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="eag1:TaskAcknowledgement">
   <eag1:header>
   <eag1:messageId>CGIDHAF3LOV7P1VS</eag1:messageId>
   <eag1:inReplyTo>ID:SMFEXTRACT01</eag1:inReplyTo>
   <eag1:sentBy>http://www.eagleinv.com/</eag1:sentBy>
   </eag1:header>
   <eag1:taskIdentifier>
   <eag1:correlationId>3A381805854D389F</eag1:correlationId>
   </eag1:taskIdentifier>
   <eag1:isNegative>false</eag1:isNegative>
   </EagleML>
</eag:taskAcknowledgement>
</soapenv:Body>
</soapenv:Envelope>
To extract large sets of data, asynchronous requests should be used together with sending the result to an FTP folder.
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