kandi X-RAY | SignalR Summary
kandi X-RAY | SignalR Summary
IMPORTANT: There will be no new features added to this product. We are in maintenance mode and only fixing critical issues. See our blog post for details. This repository hosts code and project management for ASP.NET SignalR, for use in .NET Framework applications using System.Web or Katana. If you are looking for information on ASP.NET Core SignalR, see the repository. ASP.NET SignalR is a library for ASP.NET developers that makes it incredibly simple to add real-time web functionality to your applications. What is "real-time web" functionality? It's the ability to have your server-side code push content to the connected clients as it happens, in real-time.
Top functions reviewed by kandi - BETA
SignalR Key Features
SignalR Examples and Code Snippets
Trending Discussions on SignalR
I am trying to setup SignalR using Visual Basic. This is very difficult because every example (literally every example) is in C#. I'm doing an okay job getting through conversions, but I am stumped on this:...
ANSWERAnswered 2022-Apr-07 at 15:19
Rippo answered this:
I'm trying to use SignalR in my Xamarin Forms project.
It works perfectly when I'm using Android (device or simulator).
But using the same code on iOS, it hangs at
I'm using Visual Studio 2022. XAML hot reload is disabled. I've tried adding the System.Memory and System.Buffers IncludeAssets None fix.
Here's the code...
ANSWERAnswered 2022-Mar-24 at 14:13
Well I had only half of the solution implemented.
What fixed it for me was adding this to BOTH the common AND iOS projects. Not only the common project.
I know there are a lot of questions and answeres regarding this topic out there, but nothing matched my specific issue.
I am using the following versions
- Angular 10.0.14
- @aspnet/signalr 1.0.27
- ASP.NET Core 3.1
- I just replaced @aspnet/signalr 1.0.27 by @microsoft/signalr 5.0.11 -> same issue.
The SignalR connection works pretty fine until I add an accessTokenFactory in the Angular frontend.
ANSWERAnswered 2021-Oct-19 at 12:06
Browsers do not support headers for websockets, therefore the bearer token has to be added as query string parameter. We hit the maximum length for URLs due to the length of our bearer token. We could shorten our token or use a reference token, see also: https://github.com/aspnet/SignalR/issues/1266
Hope this helps others as well.
I've created TPL Dataflow pipeline as shown below...
ANSWERAnswered 2022-Mar-07 at 18:41
If any one looking for the solution. I think the error happens when multiple threads are working together we solved it in a way instead of returning Task Process we changed the method to.
I am running currently a webserver with ASP.NET Core 3.1 and a Blazor project. Recently when upgrading to .NET 6.0 I encountered (even with a blank Blazor project) some problems with a websocket error message in the browser only when deployed on my webserver (see message below).
Locally (on Windows 11 x64, VS 22 Preview 4) there are no error messages...
Webserver: Debian 10 x64, .NET 6.0 SDK installed, running on NGINX with websockets enabled (reverse proxy).
Do I miss out on something or is it a problem with the current state of .NET 6.0 and NGINX? I already tried to access the webpage locally on the debian server and the same error message occurs.
Help would be much appreciated!
Error messages within order:...
ANSWERAnswered 2022-Feb-26 at 12:07
Here is the solution described again, maybe a little bit more convenient:
To fix this problem, I changed in the site-configuration (/etc/nginx/sites-available) of nginx the following variables:
So I want to send a message to a specific client via SignalR. That client is not Clients.Caller - currently I can only identify it by let's call it "ID", a property in the context:
So to find a client by its ID, how do I...access all clients or contexts? Or should I save this ID in a different way? This is not the connection ID, it is an ID that maps to something in the database.
Basically I'd like to go
Clients.Single(c => c.Items["ID"] == specificId).SendMessage(msg);
ANSWERAnswered 2021-Dec-14 at 11:34
You can send the ID down to the clients using
I have a component library that uses JS code to generate an image as a base64 string and the image needs to be transposed to C#. The image size is larger than MaximumReceiveMessageSize.
Can I get the value of the MaximumReceiveMessageSize property in C#? I need a way to correctly split the picture into chunks, or some other way to transfer it.
My component can be used in a Wasm or Server application. I can't change the value of the MaximumReceiveMessageSize property.
ANSWERAnswered 2022-Feb-21 at 07:30
From Microsoft docs:
I'm doing message forwarding with SignalR. I want to read my multiple Hub classes from config file as my project will be huge. Below is an example MapHub operation, but I want to read the class name from the config....
ANSWERAnswered 2022-Feb-15 at 10:28
You have to use
Reflection here as
HubEndpointRouteBuilderExtensions class doesn't provide a none-generic version of
MapHub method. Below code should work for your scenario.
I am having really weird issues with memory leak and I cannot find source after long hours of testing, debugging and trial/error attempts.
The source of memory leak is reloading object base on push from subject. On which part I load current database values and add it to SourceCache.
This part is getting the push, to initiate reload...
ANSWERAnswered 2022-Feb-09 at 20:56
The bug was reported and fixed here in library repository: https://github.com/reactiveui/ReactiveUI/issues/3091
I'm using SignalR for push notifications on my Flutter app and that works ok. I get the message from the backend and show notification using flutter_local_notifications. The problem is that the SignalR service would shut down after some time. How can I make my app stay on in the background? and even start on reboot?
Here's my code:...
ANSWERAnswered 2022-Jan-24 at 09:29
SignalR for Flutter uses web sockets and SSE to receive messages from the SignalR service. If the app was terminated because the user restarted their phone or the OS shut down the app to save battery, these push notifications would not be received by the app.
To overcome this, app developers (and SignalR) have to use FCM on Android, and APNs on iOS (or FCM which will also use APNs on iOS). All other approaches will be more limited because the operating systems do not allow users to keep background processes running the entire time. This was actually allowed years ago, but the operating systems have made these changes to save the user battery - they enforce that all apps go through the same push notification medium - FCM on Android, APNs on iOS.
SignalR for Flutter uses neither FCM nor APNs. At it's current state, SignalR is not well suited for Android or iOS - take a look at the comments with people struggling with similar problems to you on How to use signalr in Android.Alternative solution
The simplest / easiest way to get started is to use Firebase Cloud Messaging.
- On Android, it will be used directly to send messages to devices, and
- on iOS, FCM will use APNs to reach devices reliably
Caveat: On Android, there is a more complicated alternative called unifiedpush, but the limitations include showing a notification to the user at all times to handle background notifications.
My analysis: This is all done based on my quick investigation by reading the
pubspec.yaml, the GitHub issues on the original repo, the SignalR documentation, and some experience implementing Push Notifications for Flutter.
Disclosure: I just released a push notification library 2 days ago called
push which would be well suited to these types of Push Notification packages making the transformation to using FCM on Android and APNs on iOS. However, as an app developer, in most cases, you should use
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