I had lot of difficulties after upgrading signalR & .NET version. Previously I had 1.XX version now I have 2.4.0 signal R version.
This question is directly connected with - https://github.com/SignalR/SignalR/issues/4339
But after upgrade signal R doesn't work.
Now the problem is client-side functions cannot call.
I just tried this: Signalr doesn't call client side functions
and fixed it according to the correct answer:
In your init prior to $.connection.hub.start call your _subscribe method.
Later I went through a bit deeper down on this issue, and added console.log below place in my signalr.js
connection.socket.onmessage = function (event) {
var data;
try {
console.log(event.data);
data = connection._parseResponse(event.data);
}
catch (error) {
transportLogic.handleParseFailure(connection, event.data, error, onFailed, event);
console.log("socket error" + event.data);
return;
}
if (data) {
transportLogic.processMessages(connection, data, onSuccess);
}
};
After every one joins meeting -> meeting start and ask for vote (this place we should call signalR)
From vote asking person side I see console log like this:
Normal user ( voting persons console log looks like this:
This is from Firefox - another user:
I think it already triggering - client hub event 'sendOnlineMeetingVoteRequest' on hub 'NotificationHub'.
It already hit server-side function too but the thing is it never hits this part of the code:
notificationHub.client.sendOnlineMeetingVoteRequest = function (token, meetingId, meetingVoteId) {
debugger;
if (token == '@Model.Organization' && '@Model.MeetingId' == meetingId) {
ShowMeetingOnlineMeetingVotePopup(meetingId, meetingVoteId);
}
};
I went through http://localhost:33852/signalr/hubs
/*!
* ASP.NET SignalR JavaScript Library v2.3.0-rtm
* http://signalr.net/
*
* Copyright (c) .NET Foundation. All rights reserved.
* Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
*
*/
/// <reference path="..\..\SignalR.Client.JS\Scripts\jquery-1.6.4.js" />
/// <reference path="jquery.signalR.js" />
(function ($, window, undefined) {
/// <param name="$" type="jQuery" />
"use strict";
if (typeof ($.signalR) !== "function") {
throw new Error("SignalR: SignalR is not loaded. Please ensure jquery.signalR-x.js is referenced before ~/signalr/js.");
}
var signalR = $.signalR;
function makeProxyCallback(hub, callback) {
return function () {
// Call the client hub method
callback.apply(hub, $.makeArray(arguments));
};
}
function registerHubProxies(instance, shouldSubscribe) {
var key, hub, memberKey, memberValue, subscriptionMethod;
for (key in instance) {
if (instance.hasOwnProperty(key)) {
hub = instance[key];
if (!(hub.hubName)) {
// Not a client hub
continue;
}
if (shouldSubscribe) {
// We want to subscribe to the hub events
subscriptionMethod = hub.on;
} else {
// We want to unsubscribe from the hub events
subscriptionMethod = hub.off;
}
// Loop through all members on the hub and find client hub functions to subscribe/unsubscribe
for (memberKey in hub.client) {
if (hub.client.hasOwnProperty(memberKey)) {
memberValue = hub.client[memberKey];
if (!$.isFunction(memberValue)) {
// Not a client hub function
continue;
}
// Use the actual user-provided callback as the "identity" value for the registration.
subscriptionMethod.call(hub, memberKey, makeProxyCallback(hub, memberValue), memberValue);
}
}
}
}
}
$.hubConnection.prototype.createHubProxies = function () {
var proxies = {};
this.starting(function () {
// Register the hub proxies as subscribed
// (instance, shouldSubscribe)
registerHubProxies(proxies, true);
this._registerSubscribedHubs();
}).disconnected(function () {
// Unsubscribe all hub proxies when we "disconnect". This is to ensure that we do not re-add functional call backs.
// (instance, shouldSubscribe)
registerHubProxies(proxies, false);
});
proxies['NotificationHub'] = this.createHubProxy('NotificationHub');
proxies['NotificationHub'].client = { };
proxies['NotificationHub'].server = {
sendMeetingStartMessage: function (token, meetingId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMeetingStartMessage"], $.makeArray(arguments)));
},
sendMeetingStopMessage: function (token, meetingId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMeetingStopMessage"], $.makeArray(arguments)));
},
sendMeetingTreeRefreshRequest: function (token, meetingId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMeetingTreeRefreshRequest"], $.makeArray(arguments)));
},
sendMessage: function (token, meetingId, agendaGroupItemId, motionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMessage"], $.makeArray(arguments)));
},
sendOnlineMeetingVoteCloseRequest: function (token, meetingId, meetingVoteId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineMeetingVoteCloseRequest"], $.makeArray(arguments)));
},
sendOnlineMeetingVoteRequest: function (token, meetingId, meetingVoteId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineMeetingVoteRequest"], $.makeArray(arguments)));
},
sendOnlineVoteCloseRequest: function (token, meetingId, agendaGroupItemId, motionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineVoteCloseRequest"], $.makeArray(arguments)));
},
sendOnlineVoteRequest: function (token, meetingId, agendaGroupItemId, motionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineVoteRequest"], $.makeArray(arguments)));
},
sendOnlineVoteResult: function (token, meetingId, agendaGroupItemId, motionId, selectedVotingOptionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineVoteResult"], $.makeArray(arguments)));
}
};
return proxies;
};
signalR.hub = $.hubConnection("/signalr", { useDefaultPath: false });
$.extend(signalR, signalR.hub.createHubProxies());
}(window.jQuery, window));
So I didn't found any error on it too. Still, I cannot figure it out why this is happening but I went through the sample project that uses signalR 2.0.3.0 version
I went to reference & just noted that this reference - Microsoft.AspNet.SignalR.Owin is not included in that sample project that I downloaded.
I did some investigation furthermore & find out this:
'The call is ambiguous between the following methods or properties' This error will occur if a reference to Microsoft.AspNet.SignalR.Owin is not removed. This package is deprecated; the reference must be removed and the 1.x version of the SelfHost package must be uninstalled. (https://learn.microsoft.com/en-us/aspnet/signalr/overview/releases/upgrading-signalr-1x-projects-to-20)
Do I need to remove that? In my web config, there is no code like this.
