How to change the port number for Asp.Net core app?

Question

I added the following section in project.json.

  \"commands\": {
    \"run\": \"run server.urls=http://localhost:8082\",
    \"web\": \"Microsof         


        

Answer 1

If you want to run on a specific port 60535 while developing locally but want to run app on port 80 in stage/prod environment servers, this does it.

Add to environmentVariables section in launchSettings.json

"ASPNETCORE_DEVELOPER_OVERRIDES": "Developer-Overrides",

and then modify Program.cs to

public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseKestrel(options =>
                    {
                        var devOverride = Environment.GetEnvironmentVariable("ASPNETCORE_DEVELOPER_OVERRIDES");
                        if (!string.IsNullOrWhiteSpace(devOverride))
                        {
                            options.ListenLocalhost(60535);
                        }
                        else
                        {
                            options.ListenAnyIP(80);
                        }
                    })
                    .UseStartup()
                    .UseNLog();                   
                });