public CuriosityExceptionHandleMiddleware(
RequestDelegate next,
ILogger <CuriosityExceptionHandleMiddleware> logger,
IOptions <CuriosityExceptionHandlerOptions> options)
{
_next = next ?? throw new ArgumentNullException(nameof(next));
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_options = options?.Value ?? throw new ArgumentNullException(nameof(options));
_clearCacheHeadersDelegate = ClearCacheHeaders;
if (_options.ExceptionHandlingPath == null)
{
throw new InvalidOperationException($"{nameof(_options.ExceptionHandlingPath)} can't be empty.");
}
_exceptionHandler = _next;
}
/// <summary>
/// Adds a middleware to the pipeline that will catch exceptions, and re-execute the request in an alternate pipeline.
/// The request will not be re-executed if the response has already started.
/// The request will not be logged.
/// </summary>
/// <param name="app"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IApplicationBuilder UseCuriosityExceptionHandler(this IApplicationBuilder app, CuriosityExceptionHandlerOptions options)
{
if (app == null)
{
throw new ArgumentNullException(nameof(app));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
return(app.UseMiddleware <CuriosityExceptionHandleMiddleware>(Options.Create(options)));
}