Mixing
.NET Core, SignalR Hub's constructor IHubCallerClients is NULL
I'm trying to implement .NET Core 2.2/SignalR 1.1.0.
In startup:
public void ConfigureServices(IServiceCollection services)
services.AddSignalR();
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
app.UseSignalR(routes =>
{
routes.MapHub<ChatHub>("/chatHub");
});
It works smoothly when I apply a one-to-one example.
But I need an architectural change.
My example:
public class ChatHub : Hub
{
ResponseHandler ResponseHandler { get; set; }
public ChatHub()
{
IHubCallerClients hubCallerClients = this.Clients;
ResponseHandler = new ResponseHandler(hubCallerClients);
}
public async Task SendMessage(string user, string message)
{
IHubCallerClients hubCallerClients = this.Clients;
await ResponseHandler.R();
}
}
If I tried to get this.Clients in the constructor it is coming with null data. But if I try to take it in the method, it comes full as expected.
I should get IHubCallerClients in the contructor so that I can forward it to another Response context.
Thanks advance!
signalr .net-core-2.2
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
add a comment |
I'm trying to implement .NET Core 2.2/SignalR 1.1.0.
In startup:
public void ConfigureServices(IServiceCollection services)
services.AddSignalR();
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
app.UseSignalR(routes =>
{
routes.MapHub<ChatHub>("/chatHub");
});
It works smoothly when I apply a one-to-one example.
But I need an architectural change.
My example:
public class ChatHub : Hub
{
ResponseHandler ResponseHandler { get; set; }
public ChatHub()
{
IHubCallerClients hubCallerClients = this.Clients;
ResponseHandler = new ResponseHandler(hubCallerClients);
}
public async Task SendMessage(string user, string message)
{
IHubCallerClients hubCallerClients = this.Clients;
await ResponseHandler.R();
}
}
If I tried to get this.Clients in the constructor it is coming with null data. But if I try to take it in the method, it comes full as expected.
I should get IHubCallerClients in the contructor so that I can forward it to another Response context.
Thanks advance!
signalr .net-core-2.2
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
Hi, can you provide more information about the root problem you're trying to solve? en.wikipedia.org/wiki/XY_problem It looks like you're trying to solve "forwarding requests", but you're asking about "how to get this.Clients in the constructor?".
– AndyJ
Jan 2 at 11:28
add a comment |
I'm trying to implement .NET Core 2.2/SignalR 1.1.0.
In startup:
public void ConfigureServices(IServiceCollection services)
services.AddSignalR();
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
app.UseSignalR(routes =>
{
routes.MapHub<ChatHub>("/chatHub");
});
It works smoothly when I apply a one-to-one example.
But I need an architectural change.
My example:
public class ChatHub : Hub
{
ResponseHandler ResponseHandler { get; set; }
public ChatHub()
{
IHubCallerClients hubCallerClients = this.Clients;
ResponseHandler = new ResponseHandler(hubCallerClients);
}
public async Task SendMessage(string user, string message)
{
IHubCallerClients hubCallerClients = this.Clients;
await ResponseHandler.R();
}
}
If I tried to get this.Clients in the constructor it is coming with null data. But if I try to take it in the method, it comes full as expected.
I should get IHubCallerClients in the contructor so that I can forward it to another Response context.
Thanks advance!
signalr .net-core-2.2
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
I'm trying to implement .NET Core 2.2/SignalR 1.1.0.
In startup:
public void ConfigureServices(IServiceCollection services)
services.AddSignalR();
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
app.UseSignalR(routes =>
{
routes.MapHub<ChatHub>("/chatHub");
});
It works smoothly when I apply a one-to-one example.
But I need an architectural change.
My example:
public class ChatHub : Hub
{
ResponseHandler ResponseHandler { get; set; }
public ChatHub()
{
IHubCallerClients hubCallerClients = this.Clients;
ResponseHandler = new ResponseHandler(hubCallerClients);
}
public async Task SendMessage(string user, string message)
{
IHubCallerClients hubCallerClients = this.Clients;
await ResponseHandler.R();
}
}
If I tried to get this.Clients in the constructor it is coming with null data. But if I try to take it in the method, it comes full as expected.
I should get IHubCallerClients in the contructor so that I can forward it to another Response context.
Thanks advance!
signalr .net-core-2.2
signalr .net-core-2.2
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
edited Jan 2 at 11:56
Erçin Dedeoğlu
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
asked Jan 2 at 8:17
Erçin DedeoğluErçin Dedeoğlu
1,61422851
1,61422851
Hi, can you provide more information about the root problem you're trying to solve? en.wikipedia.org/wiki/XY_problem It looks like you're trying to solve "forwarding requests", but you're asking about "how to get this.Clients in the constructor?".
– AndyJ
Jan 2 at 11:28
add a comment |
Hi, can you provide more information about the root problem you're trying to solve? en.wikipedia.org/wiki/XY_problem It looks like you're trying to solve "forwarding requests", but you're asking about "how to get this.Clients in the constructor?".
– AndyJ
Jan 2 at 11:28
Hi, can you provide more information about the root problem you're trying to solve? en.wikipedia.org/wiki/XY_problem It looks like you're trying to solve "forwarding requests", but you're asking about "how to get this.Clients in the constructor?".
– AndyJ
Jan 2 at 11:28
Hi, can you provide more information about the root problem you're trying to solve? en.wikipedia.org/wiki/XY_problem It looks like you're trying to solve "forwarding requests", but you're asking about "how to get this.Clients in the constructor?".
– AndyJ
Jan 2 at 11:28
add a comment |
1 Answer
1
active
oldest
votes
OK. I solved the problem by
public class RequestHandler : Hub
{
ResponseHandler ResponseHandler { get; set; }
public RequestHandler(IHubContext<RequestHandler> hubContext)
{
ResponseHandler = new ResponseHandler(hubContext);
}
public async Task SendMessage(string user, string message)
{
await ResponseHandler.R();
}
}
Due to the nature of .net core, context comes to constructor as dependency.
"services.AddSignalR();" we're sure to add it to Scope.
"IHubContext hubContext" In this way, we can collect the contructured object.
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
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oldest
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active
oldest
votes
OK. I solved the problem by
public class RequestHandler : Hub
{
ResponseHandler ResponseHandler { get; set; }
public RequestHandler(IHubContext<RequestHandler> hubContext)
{
ResponseHandler = new ResponseHandler(hubContext);
}
public async Task SendMessage(string user, string message)
{
await ResponseHandler.R();
}
}
Due to the nature of .net core, context comes to constructor as dependency.
"services.AddSignalR();" we're sure to add it to Scope.
"IHubContext hubContext" In this way, we can collect the contructured object.
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
add a comment |
OK. I solved the problem by
public class RequestHandler : Hub
{
ResponseHandler ResponseHandler { get; set; }
public RequestHandler(IHubContext<RequestHandler> hubContext)
{
ResponseHandler = new ResponseHandler(hubContext);
}
public async Task SendMessage(string user, string message)
{
await ResponseHandler.R();
}
}
Due to the nature of .net core, context comes to constructor as dependency.
"services.AddSignalR();" we're sure to add it to Scope.
"IHubContext hubContext" In this way, we can collect the contructured object.
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
add a comment |
OK. I solved the problem by
public class RequestHandler : Hub
{
ResponseHandler ResponseHandler { get; set; }
public RequestHandler(IHubContext<RequestHandler> hubContext)
{
ResponseHandler = new ResponseHandler(hubContext);
}
public async Task SendMessage(string user, string message)
{
await ResponseHandler.R();
}
}
Due to the nature of .net core, context comes to constructor as dependency.
"services.AddSignalR();" we're sure to add it to Scope.
"IHubContext hubContext" In this way, we can collect the contructured object.
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
OK. I solved the problem by
public class RequestHandler : Hub
{
ResponseHandler ResponseHandler { get; set; }
public RequestHandler(IHubContext<RequestHandler> hubContext)
{
ResponseHandler = new ResponseHandler(hubContext);
}
public async Task SendMessage(string user, string message)
{
await ResponseHandler.R();
}
}
Due to the nature of .net core, context comes to constructor as dependency.
"services.AddSignalR();" we're sure to add it to Scope.
"IHubContext hubContext" In this way, we can collect the contructured object.
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
answered Jan 2 at 11:59
Erçin DedeoğluErçin Dedeoğlu
1,61422851
1,61422851
add a comment |
add a comment |
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Hi, can you provide more information about the root problem you're trying to solve? en.wikipedia.org/wiki/XY_problem It looks like you're trying to solve "forwarding requests", but you're asking about "how to get this.Clients in the constructor?".
– AndyJ
Jan 2 at 11:28