Changing/setting the path or route to the hub in SignalR - signalr

I have a signalR application and it is working as expected.
But I would like to change the path to the hub.
currently it is /signalr/hub/ but I want to be able to set it to something else.
How can I change the route?

On the server you can do :
app.MapSignalR("/newHubLocation", new HubConfiguration());

Related

How to create a dotnet gRPC server without using concrete instances

So I am trying to build a .Net Core app that has both REST and gRPC.
Expected results: To have one app running that supports a working REST on one port and gRPC on another.
REST is easy. It's where the app starts. But to configure gRPC's port I saw I needed to create a Server instance:
Server server = new Server
{
Services = { Greeter.BindService(new GreeterImpl()) }
Ports = { new ServerPort("0.0.0.0", 5001, ServerCredentials.Insecure) }
};
server.Start();
That's all fine until we actually put it to use and like any other "Controller" GreeterImpl needs Dependency Injection of services:
private readonly IExampleService _exampleService;
public GreeterImpl (IExampleService exampleService)
{
_exampleService = exampleService;
}
Now the first code snippet will not work since the "new GreeterImpl()" requires an IExampleService.
I searched the web on how to get a ServerServiceDefinition (the thing returned from Greeter.BindService() ) without the use of concrete implementations but found nothing. So, how should this be done or am I on a totally wrong path?
So, I was going at it with the wrong idea. Turns our you can use
app.ApplicationServices.GetService(typeof({YOUR_SERVICE}))
Where "app" is "IApplicationBuilder"
And then just use the resulting service in the ".BindService()".
In the end we don't change the ".BindService()" but pass it a working service to bind.
Important note: You have to register your service first. In my case I used AutoFac to register it

get signalr hub endpoint url in asp.net mvc (where hub is hosted)

I have an asp.net mvc 5 web app that hosts my signalr (v2) hub/server. This web app kicks off a console app that needs to connect to the hub. How can I get the full url to my signalr hub from within the web app so that I can pass it as an argument to my console app?
Or is there a better way for my console app to know what the url of the hub is?
Thanks!
The answer I was looking for is:
string hubUrl = string.Format("{0}://{1}{2}signalr", Request.Url.Scheme, Request.Url.Authority, Url.Content("~"));
The "signalr" part of the string is the default path to your endpoint. If you changed the default endpoint path, then you need to update that part of the string.

Invoking HTTPS webservice from flex

I have an https .net webservice. Invoking web methods using tools like soap UI works fine. I am unable to invoke the webmethod from flex. My WSDL loads up fine in flex.
On deployment my flex application and the webservice are on the same server. When use the machine url and access from within the server it works fine, but not when I use the https url for the flex application.
Eg - http://machinename/flex/flexApp.html works fine with https://publicname/wservice/ws.asmx but https://publicname/flex/flexapp.html fails to work.
I have the crossdomain policy in place with full access and also I have a valid SSL certificate on the server.
When I make the call from my local machine in debug mode I see the following in Fiddler-
The WSDL call goes fine and returns back correctly and the Protocol is shown as HTTPS where as the webmethod call following it shows the protocol as HTTP and returns back with the error -
I have been stuck on this for quite some time. Any help is greatly appreciated.
Thanks,
Nikhil.
Here is my Flex code that calls it:
//business delegate
public function BusinessDelegate(responder : IResponder):void
{
_responder = responder;
_service = ServiceLocator.getInstance().getService("sqlWebService");
_service.loadWSDL();
}
//Login User
public function Login(userId:String,password:String):void
{
var asyncToken:AsyncToken = _service.LoginUser(userId,password);
asyncToken.addResponder(_responder);
}
and the service locator has the following tag where I set the URL from outside as https://....
<mx:WebService
id="sqlWebService"
useProxy="false"
concurrency="multiple"
showBusyCursor="true"
wsdl="{Url}"/>
I finally was able to resolve this problem by replacing the code where I call the Flex WebService object with the specific generated classes for the webservice.
I generated classes for the webservice using Import WebService(WSDL) and was setting the url on the main class on run time as https://.....
and it works like a charm...and I see that in fiddler it shows me correctly going out as HTTPS instead of the HTTP.
Here is what helped me -
http://livedocs.adobe.com/flex/3/html/help.html?content=security2_15.html
Comment by nated.
Thanks Flextras.com for pointing me to right direction.
Resolved.
If using WCF service and WebService in Flex, use
service.svc?wsdl for HTTP and
service.svc/wsdl?wsdl for HTTPS,

How to create a fully qualified hyperlink to a resource dynamically?

In ASP.NET I'd like to create a link which points to a specific Uri and send this link in an email to a user, for instance something like http://www.BlaBla.com/CustomerPortal/Order/9876. I can create the second part of the Uri /CustomerPortal/Order/9876 dynamically in code-behind. My question is: How can I create the base Uri http://www.BlaBla.com without hardcoding it in my application? Basically I want to have something like:
http://localhost:1234/CustomerPortal/Order/9876 (on my development machine)
http://testserver/CustomerPortal/Order/9876 (on an internal test server)
http://www.BlaBla.com/CustomerPortal/Order/9876 (on the production server)
So is there a way to ask the server where the application is running: "Please tell me the base Uri of the application" ? Or any other way?
Thank you in advance!
Something like this:
HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Authority) + HttpContext.Current.Request.ApplicationPath.TrimEnd('/')
You have to put a key in config, something somewhere, because when you think about your web application, it's not really tied to a URL. For example:
http://localhost:1234/
http://yourMachineName:1234/
http://yourMachineName.domain.com:1234/
http://127.0.0.1:1234/
These are just a few ways to get to the same site on localhost....which is it? The same problem exists in production, dozens of domains or IPs may point to the same web application, and it uses host headers or maybe nothing to distinguish it. The point is, when outside the context of a request, the site doesn't really know what URL it goes with, could be anything, there's just not a 1:1 relation there.
If you are in the context of a request when sending an email, then take a look at HttpRequest.Url, this is a Uri type, and you can see the available properties here.
You can do something like this:
var host = HttpContext.Current.Url.Host;
//generate your link using the host
What about to place it into the web.config
<configuration>
<appSettings>
<add key="SendingUrlBase" value="http://www.BlaBla.com"/>

How do I get the host domain name in ASP .NET without using HttpContext.Current.Request?

I've got an ASP .Net application running on IIS7. I'm using the current url that the site is running under to set some static properties on a class in my application. To do this, I'm getting the domain name using this (insde the class's static constructor):
var host = HttpContext.Current.Request.Url.Host;
And it works fine on my dev machine (windows XP / Cassini). However, when I deploy to IIS7, I get an exception: "Request is not available in this context".
I'm guessing this is because I'm using this code in the static constructor of an object, which is getting executed in IIS before any requests come in; and Cassini doesn't trigger the static constructor until a request happens. Now, I didn't originally like the idea of pulling the domain name from the Request for this very reason, but it was the only place I found it =)
So, does anyone know of another place that I can get the host domain name? I'm assuming that ASP .Net has got to be aware of it at some level independent of HttpRequests, I just don't know how to access it.
The reason that the domain is in the request is...that's what's being asked for. For example these are a few stackexchange sites from http://www.stackexchangesites.com/:
http://community.ecoanswers.com
http://www.appqanda.com
http://www.irosetta.com/
If you ping them, you'll see they all point to the same IP/Web Server and be served by the same app (or multiple apps in this case, but the example holds if it was one big one)...but the application doesn't know which one until a host header comes in with the request asking the server for that site. Each request may be to a different domain...so the application doesn't know it.
If however it doesn't change, you could store it as an appSetting in the web.config.
Use global.asax or write a HttpModule and subscribe to start request events. You will have the request passed into your event handler.
Use this instead:
HttpRuntime.AppDomainAppVirtualPath
Or if you want the physical path:
HttpRuntime.AppDomainAppPath
For further reading:
http://weblogs.asp.net/reganschroder/archive/2008/07/25/iis7-integrated-mode-request-is-not-available-in-this-context-exception-in-application-start.aspx

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