Not sure what am I missing here but I am not able to get the values from my appsettings.json in my .net core application. I have my appsettings.json as:
{
"AppSettings": {
"Version": "One"
}
}
Startup:
public class Startup
{
private IConfigurationRoot _configuration;
public Startup(IHostingEnvironment env)
{
_configuration = new ConfigurationBuilder()
}
public void ConfigureServices(IServiceCollection services)
{
//Here I setup to read appsettings
services.Configure<AppSettings>(_configuration.GetSection("AppSettings"));
}
}
Model:
public class AppSettings
{
public string Version{ get; set; }
}
Controller:
public class HomeController : Controller
{
private readonly AppSettings _mySettings;
public HomeController(IOptions<AppSettings> settings)
{
//This is always null
_mySettings = settings.Value;
}
}
_mySettings is always null. Is there something that I am missing here?
21 Answers
Program and Startup class
.NET Core 2.x
You don't need to new IConfiguration in the Startup constructor. Its implementation will be injected by the DI system.
// Program.cs
public class Program
{
public static void Main(string[] args)
{
BuildWebHost(args).Run();
}
public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.Build();
}
// Startup.cs
public class Startup
{
public IHostingEnvironment HostingEnvironment { get; private set; }
public IConfiguration Configuration { get; private set; }
public Startup(IConfiguration configuration, IHostingEnvironment env)
{
this.HostingEnvironment = env;
this.Configuration = configuration;
}
}
