Previously, with .NET Core 2.2, I could add UseUrls
to my Program.cs
file to set the URL that the web server would run on:
public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.UseUrls("http://localhost:5100");
However, in .NET Core 3.1, the default format of Program.cs
changed:
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup<Startup>(); });
I tried adding UseUrls
to this in the same manner as I did with .NET Core 2.2, but it says that:
'IHostBuilder' does not contain a definition for 'UseUrls' and the best extension method overload 'HostingAbstractionsWebHostBuilderExtensions.UseUrls(IWebHostBuilder, params string[])' requires a receiver of type 'IWebHostBuilder'
How can I set the URL for the server to run on using .NET Core 3.1 (which uses IHostBuilder
instead of IWebHostBuilder
)?
ConfigureAppConfiguration(IHostBuilder, Action<IConfigurationBuilder>) Sets up the configuration for the remainder of the build process and application. This can be called multiple times and the results will be additive. The results will be available at Configuration for subsequent operations, as well as in Services.
To change the port the application is using, Open the file lunchSetting. json. You will find it under the properties folder in your project and as shown below. Inside the file, change applicationUrl port (below is set to 5000) to a different port number and save the file.
The extra two months (after . NET Core 3.0) allowed us to select and implement the right set of improvements over what was already a very stable base. . NET Core 3.1 is now ready to be used wherever your imagination or business need takes it.
UseExceptionHandler(IApplicationBuilder) Adds a middleware to the pipeline that will catch exceptions, log them, and re-execute the request in an alternate pipeline. The request will not be re-executed if the response has already started.
The method ConfigureWebHostDefaults
allows you to configure the web host. One of the thing you can do is change the urls: https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/generic-host?view=aspnetcore-3.1#urls
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
webBuilder.UseUrls("http://localhost:5100");
});
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