C#•9mo ago

❔ SignalR

Hi, Seeking for help. hehehe , i don't know if this correct way to implement signal in js without trigger. i used interval to call the hub. i dont know the correct way.
sorry for my english grammar. Thanks

"use strict";


/*
     1 sec = 1000 millisecond
*/
var MILLS = 1000; 
var SECONDS = 5;
var MILL_IN_MINS = SECONDS * MILLS

var isAlreadyShowAlert = false;
var connection = new signalR.HubConnectionBuilder()
    .withUrl("/SessionCheck")
    .withAutomaticReconnect()
    .build();

connection.on("ResponseSession", function (isLogout) {
    if (isLogout && !isAlreadyShowAlert) {
        alert("Session Forced to Logout.")
        document.getElementById("logout").click();
        isAlreadyShowAlert = true;
    }
    
});

connection.start().then(function () {
    console.log("signalR Start");
    checkSession();
}).catch(function (err) {
    console.error(err.toString());
});

function checkSession() {
    var empCode = localStorage.getItem("user.empcode")
    if (empCode !== "test") {
        setInterval(function () {
            connection.invoke("CheckSession", empCode).catch(function (err) {
                console.error(err.toString());
            });
        }, MILL_IN_MINS)
    }
}

"use strict";


/*
     1 sec = 1000 millisecond
*/
var MILLS = 1000; 
var SECONDS = 5;
var MILL_IN_MINS = SECONDS * MILLS

var isAlreadyShowAlert = false;
var connection = new signalR.HubConnectionBuilder()
    .withUrl("/SessionCheck")
    .withAutomaticReconnect()
    .build();

connection.on("ResponseSession", function (isLogout) {
    if (isLogout && !isAlreadyShowAlert) {
        alert("Session Forced to Logout.")
        document.getElementById("logout").click();
        isAlreadyShowAlert = true;
    }
    
});

connection.start().then(function () {
    console.log("signalR Start");
    checkSession();
}).catch(function (err) {
    console.error(err.toString());
});

function checkSession() {
    var empCode = localStorage.getItem("user.empcode")
    if (empCode !== "test") {
        setInterval(function () {
            connection.invoke("CheckSession", empCode).catch(function (err) {
                console.error(err.toString());
            });
        }, MILL_IN_MINS)
    }
}

43 Replies

Unknown User•9mo ago

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Joch•9mo ago

ohh. is the set interval work good?

Unknown User•9mo ago

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Joch•9mo ago

ahh. ill fix the callback to async await.

Unknown User•9mo ago

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Joch•9mo ago

i mean is i dont need to click the button for connection.invoke i want to set it programmtically every what will my management say seconds. i just define secod there whether my dev manager will change or stick it to 5 seconds. heheh

"use strict";


/*
     1 sec = 1000 millisecond
*/
var MILLS = 1000; 
var SECONDS = 5;
var MILL_IN_MINS = SECONDS * MILLS

var connection = new signalR.HubConnectionBuilder()
    .withUrl("/SessionCheck")
    .withAutomaticReconnect()
    .build();

connection.on("ResponseSession", function (isLogout) {
    isForceToLogout()
});
try {
    await connection.start();
    console.log("signalR Start");
    checkSession();
} catch (error) {
    console.error(error.toString());
}

function checkSession() {
    var empCode = localStorage.getItem("user.empcode")
    if (empCode !== "test") {
        setInterval(function () {
            connection.invoke("CheckSession", empCode).catch(function (err) {
                console.error(err.toString());
            });
        }, MILL_IN_MINS)
    }
}

function isForceToLogout(isLogout) {
    if (isLogout && isBrowserInReadyState()) {
        alert("Session Forced to Logout.")
        document.getElementById("logout").click();
    }
}

function isBrowserInReadyState() {
    if (document.readyState === 'ready' || document.readyState === 'complete') {
        return true
    } 
    return false;
}

"use strict";


/*
     1 sec = 1000 millisecond
*/
var MILLS = 1000; 
var SECONDS = 5;
var MILL_IN_MINS = SECONDS * MILLS

var connection = new signalR.HubConnectionBuilder()
    .withUrl("/SessionCheck")
    .withAutomaticReconnect()
    .build();

connection.on("ResponseSession", function (isLogout) {
    isForceToLogout()
});
try {
    await connection.start();
    console.log("signalR Start");
    checkSession();
} catch (error) {
    console.error(error.toString());
}

function checkSession() {
    var empCode = localStorage.getItem("user.empcode")
    if (empCode !== "test") {
        setInterval(function () {
            connection.invoke("CheckSession", empCode).catch(function (err) {
                console.error(err.toString());
            });
        }, MILL_IN_MINS)
    }
}

function isForceToLogout(isLogout) {
    if (isLogout && isBrowserInReadyState()) {
        alert("Session Forced to Logout.")
        document.getElementById("logout").click();
    }
}

function isBrowserInReadyState() {
    if (document.readyState === 'ready' || document.readyState === 'complete') {
        return true
    } 
    return false;
}

Unknown User•9mo ago

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Joch•9mo ago

i noticed when i put a debugger in C# hub class, when I didnt call the invoke, there is no debug .

Unknown User•9mo ago

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Joch•9mo ago

to be honest. i think its not supported by async await .

Unknown User•9mo ago

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Joch•9mo ago

it came from asp.net core 1.0 something . then upgraded to .net core 3.1

Unknown User•9mo ago

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Joch•9mo ago

yeah. i knew back days async await is in blooming i recently upgrade the version to 3.1 i thnk last may or march. something i forgot heheh

Unknown User•9mo ago

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Joch•9mo ago

ohh. i just used now the signal r. when i handle the this project there is no signal r

Unknown User•9mo ago

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Joch•9mo ago

im just implementing for real time check

MODiX•9mo ago

TeBeCo

like if i ask you to push a repo with only the html / js file / only a dumb hub in c# can you do it ?

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Unknown User•9mo ago

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Joch•9mo ago

i can do it for the class hub and js file only.

Unknown User•9mo ago

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Joch•9mo ago

ohh. full code its very complicated. too many need to setup . 😦

Unknown User•9mo ago

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Joch•9mo ago

i mean project. how i can do it ?.

Unknown User•9mo ago

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Joch•9mo ago

specific file only ? i can do that. ill just create . and upload to github.

Unknown User•9mo ago

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Joch•9mo ago

mvc.

Unknown User•9mo ago

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Joch•9mo ago

ohh. but i dont need have a click button . i just want to use every 5 second . like click every 5 sec .

Unknown User•9mo ago

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Joch•9mo ago

the button click here is mapp to function start ?

Unknown User•9mo ago

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Joch•9mo ago

yeah. that what im seeing heheh. im just confused heh

Unknown User•9mo ago

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Joch•9mo ago

ohh. sorry

Unknown User•9mo ago

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Joch•9mo ago

ill try this . hehehe. thank you .

Unknown User•9mo ago

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Joch•9mo ago

hehehe. thank you for the help .

Unknown User•9mo ago

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Accord•9mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ SignalR