public XRobotsTagMiddleware(RequestDelegate next, XRobotsTagHeaderValue headerValue)
{
_next = next;
Options = headerValue ?? throw new ArgumentNullException(nameof(headerValue));
_headerValue = Options.ToString();
}
/// <summary>
/// Adds the X-Robots-Tag header to all responses.
/// </summary>
/// <param name="app"></param>
/// <param name="headerValue"></param>
public static void UseXRobotsTag(this IApplicationBuilder app, XRobotsTagHeaderValue headerValue)
{
app.UseMiddleware <XRobotsTagMiddleware>(headerValue);
}
