Hi, I'm working on a SignalR project and I prefer not to use a distributed event bus. I've looked at ABP samples where one uses a distributed event bus and the other only relies on the web layer. Is it feasible to implement SignalR in a distributed architecture without using an event bus?
- ABP Framework version: v8.1.3
- UI Type: MVC
- Database System: EF Core (Oracle)
- Tiered (for MVC) or Auth Server Separated (for Angular): yes tiered
16 Answer(s)
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Hi,
Yes, you can use SignalR for two-way communication.
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https://volosoft.com/blog/RealTime-Messaging-Distributed-Architecture-Abp-SingalR-RabbitMQ
For example, I couldn't manage this without distributed event bus.
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This example combines distributed events and SignalR.
You can use SignalR directly
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Do you have any example basic project ?
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Yes,
see: https://github.com/abpframework/abp-samples/tree/master/SignalRDemoBlazorUI
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Hi, I prepare a basic abp mvc project. this is github link: https://github.com/Ibrahimsrgz/BasicSignalRApp.git
as you know in mvc we dont have access token provider and in this example i dont want to check access provider. so i changed api.host.module a bit.
unfortuanaly i am getting
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HI,
we have an MVC example, too. https://github.com/abpframework/abp-samples/tree/master/SignalRTieredDemo
this is github link: https://github.com/Ibrahimsrgz/BasicSignalRApp.git
please private the repo, it's includes your lien
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I know this MVC example. The thing is i need hub in the application layer. in this example it is in web layer.
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You can try
/signalr-hubs/chatMarkdown supported.Copy, paste, or drag & drop images and files (max 100 MB per file, 100 MB total per post) -
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I also try it and it gives same error
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add me to the repo, i will check it
my github username is realLiangshiwei
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Have you had a chance to review it?
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You add the
ChatHubin theHttpAPI.Hostproject, the client(web) needs to connect to theHttpAPI.HostYou used the wrong urlSee my commit: https://github.com/Ibrahimsrgz/BasicSignalRApp/compare/fix?expand=1
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Thanks a lot for your response and help. It works now when its allowed for anonymous
in security part, i change hub.cs allowanonymous to Authorize and i am getting
I pushed my repo.
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you need to pass the access_token
for example:
public class IndexModel : IndexModelBase { public string Token { get; set; } public IndexModel(IChatsAppService chatsAppService) : base(chatsAppService) { } public override async Task OnGetAsync() { Token = await HttpContext.GetTokenAsync("access_token"); } }@section scripts { <script> var token = '@Model.Token'; </script> <abp-script src="/Pages/Chats/index.js" /> <abp-script type="typeof(SignalRBrowserScriptContributor)" /> @*//<suite-custom-code-block-2>*@ @*//</suite-custom-code-block-2>*@ }var connection = new signalR.HubConnectionBuilder().withUrl("https://localhost:44367/signalr-hubs/chat?access_token="+token).build();
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Thank you, I get it.
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