AspNetCore SignalR, can't read headers and HttpContext

Question

I'm developing server(console app) on latest .Net 6 platform, using AspNetCore.signalR and in OnConnectedAsync method I want to read headers present in HttpContext, but I can't get HttpContext, I've tried:

var httpContext = Context.GetHttpContext();

But this throws compilation error. Like this method does not exist in this namespace anymore(namespace: Microsoft.AspNetCore.SignalR).

I also tried following approach:

var features = Context.Features.Get<HttpConnectionFeature>();

But this only gives info about Local/Remote IP Addresses which is useless when using proxy.

So I want to read all context headers, like User-Agent, Remote IP address, X-Forwarded-For and etc.

Any suggestions/solutions?

Should be var h = Context.GetHttpContext().Request.Headers["myHeader"]; — GH DevOps
– GH DevOps, Commented Jun 21, 2022 at 14:27

Tiny Wang · Accepted Answer · 2022-06-22 01:55:45Z

1

    public override Task OnConnectedAsync()
    {
        var httpCtx = Context.GetHttpContext();
        var headers = httpCtx.Request.Headers;
        return base.OnConnectedAsync();
    }

answered Jun 22, 2022 at 1:55

Tiny Wang

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Dreamer · Accepted Answer · 2022-06-22 09:01:36Z

1

The problem was I was using Microsoft.AspNetCore.SignalR.Core package and it didn't contain GetHttpContextExtensions and I could not reach the HttpContext. So I replaced the package with Microsoft.AspNetCore.SignalR.

answered Jun 22, 2022 at 9:01

Dreamer

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1 Comment

Tiny Wang Over a year ago

stackoverflow.com/a/72735505/15581227 I think this may help you know more about the package.

user820955 · Accepted Answer · 2022-12-19 11:17:50Z

0

Most of the signalR packages on nuget are deprecated, like this one https://www.nuget.org/packages/Microsoft.AspNetCore.SignalR.Core

So just make sure to uninstall any nuget packages of SignalR and instead update your csproj file to include the following:

<ItemGroup>
    <FrameworkReference Include="Microsoft.AspNetCore.App" />
</ItemGroup>

answered Dec 19, 2022 at 11:17

user820955

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