C#C
C#•2y ago
Raki

Beginner question. what does this createhostbuilder do?

I'm learning .net core and I saw this code in program.cs. I can understand the main method calls this createhostbuilder which in turn sets some config value. But what I don't know is from where this configuration comes. where does this config.AddKeyPerfile do. Can anyone explain

c#
 public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureAppConfiguration((hostingContext, config) =>
                {
                    config.AddKeyPerFile(directoryPath: Path.Combine(Directory.GetCurrentDirectory(), "secrets"), optional: true);
                    config.AddKeyPerFile(directoryPath: Path.Combine(Directory.GetCurrentDirectory(), "platform-secrets"), optional: true);
                })
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
    }
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