masstransit - consumers are no registered and activated - autofac

Question

I'm trying to register consumers but no success using mass transit.
I registered MT using Autofac using module approach.
Firstly - I created some simple message:
public class SimpleMessage
{
public string msg { get; set; }
}
and I've managed to send them into queue:
var endpointTest = await _busControl.GetSendEndpoint(new Uri("queue:queueTest"));
await endpointTest.Send(new SimpleMessage
{
msg = "test"
});
Then I created a consumer:
public class SimpleMessageConsumer : IConsumer<SimpleMessage>
{
private readonly ILogger _logger;
public SimpleMessageConsumer(ILogger logger)
{
_logger = logger;
}
public async Task Consume(ConsumeContext<SimpleMessage> context)
{
_logger.Info($"got msg from queue: {context.Message}");
}
}
But it won't run when the message appeared in the queue. My configuration is:
public class BusModule : Module
{
protected override void Load(ContainerBuilder builder)
{
builder.RegisterType<BusSettings>().As<IBusSettings>();
builder.AddMassTransit(cfg =>
{
cfg.AddConsumer<SimpleMessageConsumer, SimpleMessageConsumerDefinition>();
cfg.Builder.Register(context =>
{
var busSettings = context.Resolve<IBusSettings>();
var logger = context.Resolve < ILogger >();
var busControl = Bus.Factory.CreateUsingRabbitMq(bus =>
{
bus.AutoDelete = busSettings.AutoDelete;
bus.Durable = busSettings.Durable;
bus.Exclusive = busSettings.Exclusive;
bus.ExchangeType = busSettings.Type;
//bus.UseNServiceBusJsonSerializer();
bus.Host(busSettings.HostAddress, busSettings.Port, busSettings.VirtualHost, null, h =>
{
h.Username(busSettings.Username);
h.Password(busSettings.Password);
});
bus.ReceiveEndpoint("queueTest", ec =>
{
ec.Consumer(() => new SimpleMessageConsumer(logger));
});
});
return busControl;
}).SingleInstance().As<IBusControl>().As<IBus>();
});
}
}
in program.cs
I have:
services.AddMassTransitHostedService();
and
containerBuilder.RegisterModule<BusModule>();
Such I mentioned - sending a msg to queue works but consumer wasn't running.
Can you help me what did I do wrong? how should I fix the configuration? in order to activate the consumer?

Answer 1

I've updated your configuration to work properly, using the actual bus configuration methods instead of mixing the two solutions:
public class BusModule : Module
{
protected override void Load(ContainerBuilder builder)
{
builder.RegisterType<BusSettings>().As<IBusSettings>();
builder.AddMassTransit(cfg =>
{
cfg.AddConsumer<SimpleMessageConsumer, SimpleMessageConsumerDefinition>();
cfg.UsingRabbitMq((context,cfg) =>
{
var busSettings = context.GetRequiredService<IBusSettings>();
var logger = context.GetRequiredService<ILogger>();
//bus.UseNServiceBusJsonSerializer();
bus.Host(busSettings.HostAddress, busSettings.Port, busSettings.VirtualHost, null, h =>
{
h.Username(busSettings.Username);
h.Password(busSettings.Password);
});
bus.ReceiveEndpoint("queueTest", ec =>
{
// i'm guessing these apply to the receive endpoint, not the bus endpoint
ec.AutoDelete = busSettings.AutoDelete;
ec.Durable = busSettings.Durable;
ec.Exclusive = busSettings.Exclusive;
ec.ExchangeType = busSettings.Type;
ec.ConfigureConsumer<SimpleMessageConsumer>(context);
});
});
});
}
}