How to use the ibmmq.Conn function in ibmmq

if (myArgs[1]) {
  qMgr = myArgs[1];
}
if (myArgs[2]) {
  msgId = myArgs[2];
}
if (myArgs[3]) {
  msgId2 = myArgs[3];
}

mq.setTuningParameters({ syncMQICompat: true });


// Connect to the queue manager, including a callback function for
// when it completes.
mq.Conn(qMgr, function (err, hConn) {
  if (err) {
    console.log(formatErr(err));
    ok = false;
  } else {
    console.log("MQCONN to %s successful ", qMgr);
    connectionHandle = hConn;

    // 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_INPUT_AS_Q_DEF;
    mq.Open(hConn, od, openOptions, function (err, hObj) {
      queueHandle = hObj;
      if (err) {
        console.log(formatErr(err));

// Connect to the queue manager. If that works, the callback function
// opens the topic, and then we can start to retrieve messages.

console.log("Sample AMQSSUB.JS start");

// Get command line parameters
var myArgs = process.argv.slice(2); // Remove redundant parms
if (myArgs[0]) {
  topicString = myArgs[0];
}
if (myArgs[1]) {
  qMgr  = myArgs[1];
}

// Do the connect, including a callback function
mq.Conn(qMgr, function(err,hConn) {
   if (err) {
     console.log("MQCONN ended with reason code " + err.mqrc);
   } else {
     console.log("MQCONN to %s successful ", qMgr);

     // Define what we want to open, and how we want to open it.
     var sd = new mq.MQSD();
     sd.ObjectString = topicString;
     sd.Options =   MQC.MQSO_CREATE
                  | MQC.MQSO_NON_DURABLE
                  | MQC.MQSO_FAIL_IF_QUIESCING
                  | MQC.MQSO_MANAGED;

     mq.Sub(hConn,null,sd,function(err,hObjPubQ,hObjSubscription) {
       if (err) {
         console.log("MQSUB ended with reason " + err.mqrc);

if (myArgs[0]) {
  qName = myArgs[0];
}
if (myArgs[1]) {
  qMgr  = myArgs[1];
}
if (myArgs[2]) {
  msgId  = myArgs[2];
}

mq.setTuningParameters({syncMQICompat:true});


// Connect to the queue manager, including a callback function for
// when it completes.
mq.Conn(qMgr, function(err,hConn) {
   if (err) {
     console.log(formatErr(err));
     ok = false;
   } else {
     console.log("MQCONN to %s successful ", qMgr);
     connectionHandle = hConn;

     // 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_INPUT_AS_Q_DEF;
     mq.Open(hConn,od,openOptions,function(err,hObj) {
       queueHandle = hObj;
       if (err) {
         console.log(formatErr(err));

* opens the queue, and then we can start to retrieve messages.
 */
console.log("Sample AMQSBRA.JS start");

// Get command line parameters
var myArgs = process.argv.slice(2); // Remove redundant parms
if (myArgs[0]) {
  qName = myArgs[0];
}
if (myArgs[1]) {
  qMgr  = myArgs[1];
}

// Connect to the queue manager, including a callback function for
// when it completes.
mq.Conn(qMgr, function(err,hConn) {
   if (err) {
     console.log(formatErr(err));
   } else {
     console.log("MQCONN to %s successful ", qMgr);
     connectionHandle = hConn;

     // 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_BROWSE; // Indicate non-destructive retrieval needed
     mq.Open(hConn,od,openOptions,function(err,hObj) {
       queueHandle = hObj;
       if (err) {
         console.log(formatErr(err));
       } else {

// opens the queue, and then we can start to retrieve messages.

console.log("Sample AMQSGET.JS start");

// Get command line parameters
var myArgs = process.argv.slice(2); // Remove redundant parms
if (myArgs[0]) {
  qName = myArgs[0];
}
if (myArgs[1]) {
  qMgr  = myArgs[1];
}


// Do the connect, including a callback function
mq.Conn(qMgr, 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_INPUT_AS_Q_DEF;
     mq.Open(hConn,od,openOptions,function(err,hObj) {
       if (err) {
         console.log(formatErr(err));
       } else {
         console.log("MQOPEN of %s successful",qName);
         // And loop getting messages until done.