御用小本本

結論

{
  "ApiSettings": {
    "A廠商": {
      "ClientId": "Green Widget",
      "Secret": "GW46"
    },
    "B廠商": {
      "ClientId": "Orange Gadget",
      "Secret": "OG35"
    }
  }
}

 

public class ApiSettings
{
    public const string A = "A廠商";
    public const string B = "B廠商";

    public string ClientId { get; set; } = string.Empty;
    public string Secret { get; set; } = string.Empty;
}

 

builder.Services.Configure<ApiSettings>(TopItemSettings.A,
    builder.Configuration.GetSection("ApiSettings:A廠商"));
    
builder.Services.Configure<ApiSettings>(TopItemSettings.B,
    builder.Configuration.GetSection("ApiSettings:B廠商"));

 

public class TestNOModel : PageModel
{
    private readonly ApiSettings _aApiSettings;
    private readonly ApiSettings _bApiSettings;

    public TestNOModel(IOptionsSnapshot<ApiSettings> namedOptionsAccessor)
    {
        _aApiSettings = namedOptionsAccessor.Get(ApiSettings.A);
        _bApiSettings = namedOptionsAccessor.Get(ApiSettings.B);
    }

    public ContentResult OnGet()
    {
        return Content($"A廠商:ClientId {_aApiSettings.ClientId} \n" +
                       $"A廠商:Secret {_aApiSettings.Secret} \n\n" +
                       $"B廠商:ClientId {_bApiSettings.ClientId} \n" +
                       $"B廠商:Secret {_bApiSettings.Secret} \n"   );
    }
}

參照

C# 選項模式 | 御用小本本 - 點部落 (dotblogs.azurewebsites.net)

ASP.NET Core 中的選項模式 | Microsoft Learn