Create notification for custom sensors

Also, I need to get all the notifications for a resource. Attached please find my code. (I see a similar question was asked August 2018, which is unanswered - subject: "search notification by Name")

I am also using the Javascript API.

Yes, it's correct way. First you searh (get) resources - getItems("avl_resource"), then for each item(resource) execute getNotifications()

"Yes, it's correct way. First you searh (get) resources - getItems("avl_resource"), then for each item(resource) execute getNotifications()"

I've got a couple of notifications set up in Wialon, but using my code to get all the notifications I get "null" back.

You mean the code in file  getAllNotifications.js  , yes?

I still can't create a notification, "Invalid input" in the console. I've changed the sensor_type to "custom" and also tried it with an empty string. I've also tried the sensor_name_mask with an empty string, but to no avail.  Below the values in the object.  What else could be wrong?

Object
act: Array(1)
0: {t: "message", p: {…}}
length: 1
__proto__: Array(0)
cdt: 10
cp: 3600
fl: 1
la: "en"
ma: 0
mast: 0
mmtd: 3600
mpst: 0
n: "js code new"
sch: {f1: 0, f2: 0, t1: 0, t2: 0, m: 0, …}
ta: 1602242951
td: 1602847751
trg:
p:
lower_bound: "2.5"
sensor_name_mask: "sensorA1"
sensor_type: "custom"
type: "1"
upper_bound: "4.5"
__proto__: Object
t: "sensor_value"
__proto__: Object
txt: "Test Notification Text"
tz: 10800
un: 21523455
__proto__: Object

Hello Diana

My apologies for bugging you again.

I still can not get the function "getNotifications()" to work.  Below new code that I've tried (I've tried less flags):

function getAllNotifications() {
    var sess = wialon.core.Session.getInstance(); // get instance of current Session
    var flags = wialon.item.Resource.dataFlag.base | wialon.item.Resource.dataFlag.notifications;

    sess.loadLibrary("resourceNotifications"); // load Notification Library       

    sess.updateDataFlags( // load items to current session
        ({ type: "type", data: "avl_resource", flags: flags, mode: 0 }),
        function (code) { // updateDataFlags callback
            if (code) { console.log(window.wialon.core.Errors.getErrorText(code)); return; } // exit if error code
            var res = sess.getItems("avl_resource");
            for (var i = 0; i < res.length; i++) {    
                let allNotifications = res(i).getNotifications();
                console.log(allNotifications);
            }
        });
}

Do I perhaps need a parameter for the "getNotifications()" function?

In one of your earlier posts you've mentioned that for the "createNotification()" function I could just create the same notification on the monitoring site and look through request in console. Can you tell me how to this? However, I have now managed to create a notification, (thank you so much for your help), but looking through a request in the console could be a great tool for me to use in future. I just don't know how to look for this in the Wialon code. If you can guide me through this, I would really appreciate it.

The reason why my "createNotification()" function didn't work was because I've used strings(text) for the lower-bound and upper-bound parameter values, while it should have been Integers or Floats, but according to the documentation (here in doc), I thought it should be strings(text)

        "lower_bound":<text>,        /* sensor value from */
        "merge":<text>,            /* similar sensors: 0 - calculate separately, 1 - sum up values */
        "prev_msg_diff":<text>,         /* this flag allows to form boundaries for the current value according to previous value(prev) in such a way:
        "sensor_name_mask":<text>,    /* sensor name mask */
        "sensor_type":<text>,        /* sensor type */
        "type":<text>,            /* trigger: 0 - in specified range, 1 - out of specified range */
        "upper_bound":<text>

Thank you in advance!

Annanda

Hi Diana

Have you found time to look at my code?

Is it possible that maybe the notifications are not set up correctly in Wialon?

Best regards
Annanda

Hi Diana

I am afraid still no joy!

Below the result in the console with your example (I've also attached as an image)

Array(2)
0: {resName: "tyrecare", allNotif: null}
1: {resName: "tyretrack1", allNotif: null}
length: 2
__proto__: Array(0)

Could it be that there is something wrong with the notifications I've set up in Wialon?  (There are just a few)

For what it's worth, I've also tried your example with a Promise, but to no avail:

async function getAllNotifications() {

    var sess = window.wialon.core.Session.getInstance();
    var flags = window.wialon.item.Item.dataFlag.base | window.wialon.item.Resource.dataFlag.base | window.wialon.item.Item.dataFlag.messages |
    window.wialon.item.Resource.dataFlag.notifications;

    let result = await new Promise((resolve, reject) => {
        sess.updateDataFlags(
           ({ type: "type", data: "avl_resource", flags: flags, mode: 1 }),
            (code) => {
                if (code) {
                    reject({ type: API_ERROR, error: code });
                    return;
                }
               
                var res = sess.getItems("avl_resource");
                var mass = () //result massive
                for (var i = 0; i < res.length; i++) { // construct Select list using found resources   
                    var obj = { resName: res(i).getName(), allNotif: res(i).getNotifications() }
                    mass.push(obj);
                }
                resolve(mass);
            },
        );
    });

    console.log(result);
}

Please advise!

Regards
Annanda