test_issue_185.js

/*global require,console,setTimeout */
var opcua;
try{
    opcua = require("node-opcua");
} catch(err) {
    opcua = require("..");
}
var async = require("async");

var client = new opcua.OPCUAClient();
//var endpointUrl = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
var endpointUrl = "opc.tcp://localhost:53530/OPCUA/SimulationServer";

var nodeId1 = "ns=2;s=MyLevel";
var nodeId2 = "ns=2;s=MySwitch";
var tags = [nodeId1, nodeId2];

var the_session, the_subscription;

var date2 = new Date(Date.now());
var date1 = new Date();
date1.setTime(date2.getTime() - 3000); // 3 sec history

console.log("start  =",date1.toISOString());
console.log("end    =",date2.toISOString());

async.series([

    // step 1 : connect to
    function(callback)  {
        client.connect(endpointUrl,function (err) {
            if(err) {
                console.log(" cannot connect to endpoint :" , endpointUrl );
            } else {
                console.log("connected !");
            }
            callback(err);
        });
    },

    // step 2 : createSession
    function(callback) {
        client.createSession( function(err,session) {
            if(!err) {
                the_session = session;
            }
            callback(err);
        });
    },

    function (callback) {
        var tags1 = tags;
        the_session.readHistoryValue(tags1, date1,date2, function (err, dataValues, diagnostics) {
            if (!err) {
                console.log(tags1[0].toString(),dataValues[0].toString());
                console.log(tags1[1].toString(),dataValues[1].toString());
            }
            callback(err);
        });
    },
    function (callback) {
        var tags1 = tags.reverse();
        the_session.readHistoryValue(tags1,date1,date2, function(err, dataValues, diagnostics) {
            if (!err) {
                console.log(tags1[0].toString(),dataValues[0].toString());
                console.log(tags1[1].toString(),dataValues[1].toString());
            }
            callback(err);
        });
    },
    // close session
    function(callback) {
        the_session.close(function(err){
            if(err) {
                console.log("session closed failed ?");
            }
            callback();
        });
    }

],
function(err) {
    if (err) {
        console.log(" failure ",err);
    } else {
        console.log("done!");
    }
    client.disconnect(function(){});
});