public Task HandleApplicationMessageReceivedAsync(MqttApplicationMessageReceivedEventArgs eventArgs) =>
Task.Run(new Func <Task>(async() =>
{
try
{
string topic = eventArgs.ApplicationMessage.Topic;
if (string.IsNullOrWhiteSpace(topic) == false)
{
var payload = Encoding.UTF8.GetString(eventArgs.ApplicationMessage.Payload);
var qos = eventArgs.ApplicationMessage.QualityOfServiceLevel;
var retain = eventArgs.ApplicationMessage.Retain;
Console.WriteLine("### RECEIVED APPLICATION MESSAGE ###");
Console.WriteLine($"+ Topic = {topic}");
Console.WriteLine($"+ Payload = {payload}");
Console.WriteLine($"+ QoS = {qos}");
Console.WriteLine($"+ Retain = {retain}");
var message = new Message()
{
ReceivedAt = DateTime.Now,
Topic = topic,
Payload = payload,
Qos = (uint)qos,
Retain = retain
};
await _httpClient.SendMessageAsync(message);
await _dbContext.Messages.AddAsync(message);
await _dbContext.SaveChangesAsync();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message, ex);
}
}));
public async Task Endpoint(HttpContext context,
CalculationContext dataContext)
{
int count = int.Parse((string)context.Request.RouteValues["count"]);
long total = dataContext.Calculations
.FirstOrDefault(c => c.Count == count)?.Result ?? 0;
if (total == 0)
{
for (int i = 1; i <= count; i++)
{
total += i;
}
dataContext.Calculations !
.Add(new Calculaton()
{
Count = count, Result = total
});
await dataContext.SaveChangesAsync();
}
string totalString = $"({ DateTime.Now.ToLongTimeString() }) {total}";
await context.Response.WriteAsync(
$"({DateTime.Now.ToLongTimeString()}) Total for {count}"
+ $" values:\n{totalString}\n");
}