<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Wialon Playground - Get sensors</title>
    <script type="text/javascript" src="//code.jquery.com/jquery-latest.min.js"></script>
    <script type="text/javascript" src="//hst-api.wialon.com/wsdk/script/wialon.js"></script>
</head>
<body>

Select unit: <select id="units"></select>
available sensors <select id="sensors"></select>
<div id="log"></div>

</body>
</html>HTML

#log { border: 1px solid #c6c6c6; }
.icon {float:left; margin:10px;}CSS

$(document).ready(function () {
    
    wialon.core.Session.getInstance().initSession("https://hst-api.wialon.com"); // init session
    // For more info about how to generate token check
    // http://sdk.wialon.com/playground/demo/app_auth_token
    wialon.core.Session.getInstance().loginToken("0f481b03d94e32db858c7bf2d8415204289C57FB5B35C22FC84E9F4ED84D5063558E1178", "", // try to login
        function (code) { // login callback
            if (code) { return; } // exit if error code
            init(); // when login suceed then run init() function
        });
});

function init()  {
  console.log('init start');
   // Get the Sidebar

  getMainInfo()


}


function getMainInfo() {

    const sess = wialon.core.Session.getInstance(); // get instance of current Session
    sess.initSession('https://hst-api.wialon.com');
    sess.loadLibrary("resourceAccounts");
    sess.loadLibrary("resourceDrivers");
    sess.loadLibrary("itemIcon"); // load Icon Library
    sess.loadLibrary("unitSensors");
    // flags to specify what kind of data should be returned
   //const flags = 4096;//wialon.item.Item.dataFlag.base | wialon.item.Unit.dataFlag.restricted | wialon.item.Unit.dataFlag.lastMessage;

    var prms1 = {
         "spec": 
        
        {
       "unitId":25343786,
        "sensors":[]}
        
    };
    
    const remote = wialon.core.Remote.getInstance();
    remote.remoteCall('unit/calc_last_message', prms1,
        function (code, result) {
            if (code) {
                //msg(wialon.core.Errors.getErrorText(code)); 
                console.log(wialon.core.Errors.getErrorText(code));
                //msg();
                return;
            }
            return console.log(result);

           
 

        });

}


/*

function getSensors() { // construct sensors Select list for selected unit
    if (!$("#units").val()) { msg("Select unit"); return; } // exit if no unit selected
    $("#sensors").html("<option></option>"); // add first empty element
    var sess = wialon.core.Session.getInstance(); // get instance of current Session
    var unit = sess.getItem($("#units").val()); // get unit by id
    var sens = unit.getSensors(); // get unit's sensors
    for (var i in sens) // construct select list
        $("#sensors").append("<option value='" + sens[i].id + "'>" + sens[i].n + "</option>");
}
let result;
function getSensorInfo() { // get and show information about selected Sensor
    if (!$("#units").val()) { msg("Select unit"); return; } // exit if no unit selected
    if (!$("#sensors").val()) return; // exit if no unit selected
    var sess = wialon.core.Session.getInstance(); // get instance of current Session
    var unit = sess.getItem($("#units").val()); // get unit by id
    var sens = unit.getSensors($("#sensors").val()); // get sensor by id
    // calculate sensor value
    let result = unit.calculateSensorValue(sens, unit.getLastMessage());
    if (result == -348201.3876) result = "N/A"; // compare result with invalid sensor value constant
    // print result message
    console.log(sens);
    console.log(result);
    msg(result);
}
*/
// execute when DOM ready
JS

Result

Source code of example Close ✕