fail to put message with express

[ginlo0628]

Hi, I'm trying use node js and express to implement a restful service to put message to IBM MQ,
here is my code:

const express = require( "express" );
const app = express();
const port = 8050; // default port to listen
const mq = require( "ibmmq" );


function formatErr(err) {
    return  "MQ call failed in " + err.message;
  }
  
  function sleep(ms) {
    return new Promise(resolve=![image](https://user-images.githubusercontent.com/11471535/120274900-19bb4480-c2e3-11eb-9646-13fc345fdbd5.png){
      setTimeout(resolve,ms);
    });
  }
  
  function toHexString(byteArray) {
      return byteArray.reduce((output, elem) =>
        (output + ('0' + elem.toString(16)).slice(-2)),
        '');
    }
  function putMessage(hObj) {
  
      var msg = "Hello from Node at " + new Date();
      console.log("putMessage start!");

      var mqmd = new mq.MQMD(); // Defaults are fine.
      var pmo = new mq.MQPMO();
    
      // Describe how the Put should behave
      pmo.Options = MQC.MQPMO_NO_SYNCPOINT |
                    MQC.MQPMO_NEW_MSG_ID |
                    MQC.MQPMO_NEW_CORREL_ID;
    
      mq.Put(hObj,mqmd,pmo,msg,function(err) {
        if (err) {
          console.log(formatErr(err));
        } else {
          console.log("MsgId: " + toHexString(mqmd.MsgId));
          console.log("MQPUT successful");
        }
      });
    }
  function cleanup(hConn,hObj) {
      mq.Close(hObj, 0, function(err) {
        if (err) {
          console.log(formatErr(err));
        } else {
          console.log("MQCLOSE successful");
        }
        mq.Disc(hConn, function(err) {
          if (err) {
            console.log(formatErr(err));
          } else {
            console.log("MQDISC successful");
          }
        });
      });
    }


// define a route handler for the default home page
app.get( "/", ( req, res ) => {
    var MQC = mq.MQC; 
    var qMgr = "QM1";
    var qName = "DEV.QUEUE.1";
    var hConn;
    var cno = new mq.MQCNO();
    cno.Options |= MQC.MQCNO_CLIENT_BINDING;
    var cd = new mq.MQCD();
    cd.ConnectionName = "localhost(1414)";
    cd.ChannelName = "DEV.APP.SVRCONN";
    cno.ClientConn = cd;
    
    var csp = new mq.MQCSP();
    csp.UserId = "app";
    csp.Password = "ssssssss";
    cno.SecurityParms = csp;
    
    
    mq.Connx(qMgr, cno, function(err,hConn) {
       if (err) {
         console.log(formatErr(err));
       } else {
         console.log("MQCONN to %s successful ", qMgr);
    
         // Define what we want to open, and how we want to open it.
         var od = new mq.MQOD();
         od.ObjectName = qName;
         od.ObjectType = MQC.MQOT_Q;
         var openOptions = MQC.MQOO_OUTPUT;
         mq.Open(hConn,od,openOptions,function(err,hObj) {
           if (err) {
             console.log(formatErr(err));
           } else {
             console.log("MQOPEN of %s successful",hObj);
              
              putMessage(hObj);
                        
           }
           cleanup(hConn,hObj);
         });
       }
    });

   // res.send( "Hello world!" );
} );

// start the Express server
app.listen( port, () => {
    console.log( `server started at http://localhost:${ port }` );
} );

The server started ok:

but will get error code and exit with put function.

Here is the server debug.log:

Is anything wrong with this case?