Invoking Web Service/Rest API from D365 FOE

In this blog article, we will see how we can invoke web service call for a third-party application in Dynamics 365 for Finance and Operations, Enterprise Edition using X++.

In this blog we will Consider Service Order Entity as source passing Service Order values to a third party application on Service Order creation using web service endpoint url.

• Create a SMAServiceOrderTable Table post Insert event.

  /// <summary>
  /// Post insert passing Service Order values and URL to invoke Web service
  /// </summary>
  /// <param name="sender"></param>
  /// <param name="e"></param>
  [DataEventHandler(tableStr(SMAServiceOrderTable), DataEventType::Inserted)]
  public static void SMAServiceOrderTable_onInserted(Common sender, DataEventArgs e)
  {
          SMAServiceOrderTable serviceOrderTable;
          serviceOrdertable = sender as SMAServiceOrderTable;
          String15 SOstatus = enum2Str(serviceOrderTable.Progress);        
  
          //parmvalue stores Service Order values in container
          container parmvalue = ["'CustAccount':'"+serviceOrderTable.CustAccount+"'","'ServiceOrderId':'"+serviceOrderTable.ServiceOrderId+"'","'CurrencyCode':'US Dollar'","'SOStatus':'"+SOstatus+"'","'ProjId':'"+serviceOrderTable.ProjId+"'","'CFSCRMWorkOrderNo':'"+serviceOrderTable.CFSCRMWorkOrderNo+"'"];
  
          new WebService().sendrecord("<<webservice url>>",parmvalue);
  
  }

• Create a class which calls the web service.

  Class WebService
  {
  public void sendrecord(String255 endpointurl,container arryI)
      {
          str                             url;
          str                             postData;
          str                             returnValue;
          System.Net.HttpWebRequest       request;
          System.Net.HttpWebResponse      response;
          System.Byte[]                   byteArray;
          System.IO.Stream                dataStream;
          System.IO.StreamReader          streamReader;
          System.Net.ServicePoint         servicePoint;
          System.Net.ServicePointManager  servicePointManager;
          CLRObject                       clrObj;
          System.Text.Encoding            utf8;
          Counter  countCounter;
          ;        
          //generate postdata in json format
          postData = "{";
          for(countCounter= 1;countCounter<= conlen(arryI);countCounter++)
          {
              postData = postData+conpeek(arryI,countCounter)+",";       
  
              info(strFmt("%1",postData));
          }
          postData = postData+"}";       
  
          new InteropPermission(InteropKind::ClrInterop).assert();
          url = endpointurl;
          clrObj = System.Net.WebRequest::Create(url);                     
          System.Net.ServicePointManager::set_Expect100Continue(false);
          request = clrObj;
          request.set_Method("POST");
          utf8 = System.Text.Encoding::get_UTF8();
          byteArray = utf8.GetBytes(postData);
          request.set_ContentType("application/json");
  
         request.set_ContentLength(byteArray.get_Length());
          dataStream = request.GetRequestStream();
          dataStream.Write(byteArray, 0, byteArray.get_Length());
          dataStream.Close();
  }
  
  }

Let me know your reviews. I will soon come up with more articles, as I further explore D365 Operations.