Table of Contents
What is a hub in ASP.NET SignalR?
A hub is the central point in an ASP.NET Core application through which all SignalR communication is routed. Create a hub for your chat application by adding a class named Chat that inherits from Microsoft.AspNetCore.SignalR.Hub:
How is a web application deployed on a IIS server?
In .Net, the web server available is called Internet Information Services or IIS. Once the web application is developed, it is then deployed on an IIS Server. This web application can then be accessed by the end users. There are two ways to deploy an application to the server, you will see both over here.
What happens if hub name is incorrect SignalR?
Misspelled method, incorrect method signature, or incorrect hub name. If the name or signature of a called method does not exactly match an appropriate method on the client, the call will fail. Verify that the method name called by the server matches the name of the method on the client.
How does SendMessage work in ASP.NET SignalR?
The SendMessage method is invoked by the clients whenever a message needs to be sent. It uses the Client.All property of the hub to invoke a method named newMessage on all connected clients with arguments for the sender’s username (currently “anonymous”) and the message.
Why do I not need to host SignalR in IIS?
Reasons for not hosting in IIS include: Environments where IIS is not available or desirable, such as an existing server farm without IIS. The performance overhead of IIS needs to be avoided. SignalR functionality is to be added to an existing application that runs in a Windows Service, Azure worker role, or other process.
When to use SignalR in a server farm?
Environments where IIS is not available or desirable, such as an existing server farm without IIS. The performance overhead of IIS needs to be avoided. SignalR functionality is to be added to an existing application that runs in a Windows Service, Azure worker role, or other process.
How does myhub work in the SignalR application?
MyHub, the SignalR Hub class that the application will provide to clients. This class has a single method, Send, that clients will call to broadcast a message to all other connected clients. Compile and run the application.
Why is my hub not loading in IIS 7?
However, when it is deployed to the production server it is unable to find the signal/hubs file that is being dynamically injected into the httphandlers. Due to it’s dynamic nature it has to be created on the fly, so I can’t just copy the working file into the project either.