/// <summary>
/// Constructor
/// </summary>
/// <param name="next"></param>
/// <param name="options"></param>
public WebSocketMiddleware(RequestDelegate next, IOptions <WebSocketOptions> options) :
base(options.Value.IoTHubOwnerConnectionString)
{
_uri = options.Value.PublicEndpoint;
_secure = _uri.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase);
_next = next;
DefaultProvider.Set(this);
}
/// <summary>
/// Get a provider instance
/// </summary>
/// <returns></returns>
public static IProvider Get()
{
if (_provider != null)
{
return(_provider);
}
lock (_lock) {
if (_provider == null)
{
var cs = Environment.GetEnvironmentVariable("_HUB_CS");
if (cs != null)
{
_provider = new IoTHubProvider(cs);
}
else
{
_provider = new DefaultProvider();
}
}
return(_provider);
}
}