How to get the base url of your WebApp in .NET 6-CodePudding

I would like to get the base Url of my .NET 6 Web Application server. The issue is that I want to get it in the Program.cs file and not inside a Controller.

The reason for this is because Program.cs is where i populate my database with objects and i would like to give these objects a string property that contains the current base Url of the website.

Is this possible?

CodePudding user response：

Since there is a lot going on during startup of the web application, you have not everything available at this time.
One thing you could do, is register a delegate when the ApplicationStarted token has been canceled:

public static void Main(string[] args)
{
    var builder = WebApplication.CreateBuilder(args);
    var app = builder.Build();

    app.MapGet("/", () => "Hello World!");

    app.Lifetime.ApplicationStarted.Register(() =>
    {
        ICollection<string> urls = app.Urls; // The list of URLs that the HTTP server is bound to
    });

    app.Run();
}

CodePudding user response：

you can use this to get urls on which your application is listening but only after it is running.

You can try this. but I am not sure how it will fit into your solution.

await app.StartAsync();

Console.WriteLine($"Urls from Program.cs after app.StartAsync(): {string.Join(", ", app.Urls)}");

await app.WaitForShutdownAsync();