static void ConfigureMqttWebSocketEndpoint(IApplicationBuilder app, MqttService mqttService)
{
app.Use(async(context, next) =>
{
if (context.Request.Path == "/mqtt")
{
if (context.WebSockets.IsWebSocketRequest)
{
string subProtocol = null;
if (context.Request.Headers.TryGetValue("Sec-WebSocket-Protocol", out var requestedSubProtocolValues))
{
subProtocol = MqttSubProtocolSelector.SelectSubProtocol(requestedSubProtocolValues);
}
using (var webSocket = await context.WebSockets.AcceptWebSocketAsync(subProtocol).ConfigureAwait(false))
{
await mqttService.RunWebSocketConnectionAsync(webSocket, context).ConfigureAwait(false);
}
}
else
{
context.Response.StatusCode = (int)HttpStatusCode.BadRequest;
}
}
else
{
await next().ConfigureAwait(false);
}
});
}
