C#•3y ago

How to get appsettings config data in program ?

Hi i need to register an object in ServiceCollection that require information from the AzureStorageConfig

8 Replies

Then bind the configuration to your class. You need another nuget for that iirc, Microsoft.Extensions.Configuration.Binder. You would do something like var myConfiguration = configuration.Get<MyClass>("MySection")

TotechsStrypperOP•3y ago

I tried it but when request the BlobContainer these 2 null

TotechsStrypperOP•3y ago

I dont know how to use the binding

Yawnder•3y ago

@TotechsStrypper var settings = configuration.GetSection("MyConfigurationNode").Get<MySettingsClass>(); So in your case, just builder.Configuration rather than configuration.

Mayor McCheese•3y ago

services.AddSingleton(provider => { var options = provider.GetRequiredService<IOptions<MyClass>>(); return new BlobContainerClient(blahblahblah); }); I personally wouldn't read directly from configuration in a non configuration map class unless there was no other option.

jcotton42•3y ago

@TotechsStrypper $options

MODiX•3y ago

{
  "My": {
    "Foo": {
      "Kix": 5
    }
  }
}

{
  "My": {
    "Foo": {
      "Kix": 5
    }
  }
}

public class FooOptions
{
  public const string SectionName = "My:Foo";

  public string Bar {get;set;} = "default value for bar";
  public int Kix {get;set;} = -1;
  public DateTime? Pouet {get;set;} = default;
}

public static IServiceCollection AddFoo(this IServiceCollection services) =>
  services
    .AddOptions<FooOptions>()
    .Configure<IConfiguration>((options, configuration) => configuration.Bind(FooOptions.SectionName, options))
    .Validate(options => options.Kix >= 0, $"The configuration key '{FooOptions.SectionName}:{nameof(Kix)}' cannot be negative")
    ;

public static IServiceCollection AddFoo(this IServiceCollection services, Action<FooOptions> configure) =>
  services
    .AddFoo()
    .Configure(configure);

//Startup:
services.AddFoo();
// or
services.AddFoo(fooOptions => fooOptions.Kix = 12);

public class FooOptions
{
  public const string SectionName = "My:Foo";

  public string Bar {get;set;} = "default value for bar";
  public int Kix {get;set;} = -1;
  public DateTime? Pouet {get;set;} = default;
}

public static IServiceCollection AddFoo(this IServiceCollection services) =>
  services
    .AddOptions<FooOptions>()
    .Configure<IConfiguration>((options, configuration) => configuration.Bind(FooOptions.SectionName, options))
    .Validate(options => options.Kix >= 0, $"The configuration key '{FooOptions.SectionName}:{nameof(Kix)}' cannot be negative")
    ;

public static IServiceCollection AddFoo(this IServiceCollection services, Action<FooOptions> configure) =>
  services
    .AddFoo()
    .Configure(configure);

//Startup:
services.AddFoo();
// or
services.AddFoo(fooOptions => fooOptions.Kix = 12);

TotechsStrypperOP•3y ago

I use the service provider to get the job done

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How to get appsettings config data in program ?

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