30 lines
970 B
C#
30 lines
970 B
C#
using Microsoft.Extensions.Hosting;
|
|
using Microsoft.Extensions.Options;
|
|
|
|
namespace StellaOps.DependencyInjection.Validation;
|
|
|
|
/// <summary>
|
|
/// A hosted service that validates options at application startup.
|
|
/// This ensures configuration errors are detected early rather than at first use.
|
|
/// </summary>
|
|
/// <typeparam name="TOptions">The options type to validate.</typeparam>
|
|
internal sealed class OptionsValidationHostedService<TOptions> : IHostedService
|
|
where TOptions : class
|
|
{
|
|
private readonly IOptions<TOptions> _options;
|
|
|
|
public OptionsValidationHostedService(IOptions<TOptions> options)
|
|
{
|
|
_options = options;
|
|
}
|
|
|
|
public Task StartAsync(CancellationToken cancellationToken)
|
|
{
|
|
// Accessing .Value triggers validation if IValidateOptions<TOptions> is registered
|
|
_ = _options.Value;
|
|
return Task.CompletedTask;
|
|
}
|
|
|
|
public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
|
|
}
|