public Task StartAsync(CancellationToken cancellationToken)
{
_configuration.ConfigureRabbit();
// Create a channel for this reader
_channel = _connection.CreateChannel();
// Create a consumer for the queue. This is a method implemented by RabbitMQ.Client to easily subscribe to incoming messages on this queue
var consumer = new EventingBasicConsumer(_channel);
// Add an event handler for receiving messages on the queue
consumer.Received += (evt, evt2) =>
{
if (HandleMessage(evt2))
{
// Acknowledge this message as handled
_channel.BasicAck(evt2.DeliveryTag, false);
}
else
{
// Reject the message and put it back on the queue for trying again.
_channel.BasicReject(evt2.DeliveryTag, true);
}
};
// On the provided queue name, register our consumer as a consumer.
_channel.BasicConsume(_queueName.Name, false, consumer);
return(Task.CompletedTask);
}
public Task PublishMessageAsync <T>(string messageType, T value)
{
using var channel = _connection.CreateChannel();
var message = channel.CreateBasicProperties();
message.ContentType = "application/json";
message.DeliveryMode = 2;
// Add a MessageType header, this part is crucial for our solution because it is our way of distinguishing messages
message.Headers = new Dictionary <string, object> {
["MessageType"] = messageType
};
var body = JsonSerializer.SerializeToUtf8Bytes(value);
// Publish this without a routing key to the rabbitmq broker
channel.BasicPublish("TestApp", string.Empty, message, body);
return(Task.CompletedTask);
}
public void ConfigureRabbit()
{
if (!configured)
{
var channel = _connection.CreateChannel();
channel.ExchangeDeclare("mealz", "fanout");
channel.QueueDeclare("Authentication Service", false, false);
channel.QueueDeclare("User Service", false, false);
channel.QueueDeclare("Recipe Service", false, false);
channel.QueueDeclare("Moderation Service", false, false);
channel.QueueBind("Authentication Service", "mealz", "UserRegistered");
channel.QueueBind("Authentication Service", "mealz", "UserChanged");
channel.QueueBind("Authentication Service", "mealz", "UserDeleted");
channel.QueueBind("Authentication Service", "mealz", "UserRoleUpdated");
channel.QueueBind("Authentication Service", "mealz", "AdminAdded");
channel.QueueBind("Recipe Service", "mealz", "RemoveRecipe");
configured = true;
}
}
public void ConfigureRabbit()
{
if (_configured)
{
return;
}
var channel = _conn.CreateChannel();
channel.ExchangeDeclare(Exchange, "fanout");
channel.QueueDeclare("TweetService", false, false);
channel.QueueDeclare("AuthenticationService", false, false);
channel.QueueDeclare("UserService", false, false);
channel.QueueDeclare("FileManagementService", false, false);
channel.QueueDeclare("FollowService", false, false);
channel.QueueDeclare("TimelineService", false, false);
channel.QueueDeclare("ModerationService", false, false);
channel.QueueDeclare("LikeService", false, false);
channel.QueueDeclare("TrendingService", false, false);
//QueueBind(Service to which the message will be send, Exchange, Message class names)
channel.QueueBind("TweetService", Exchange, "NewProfileMessage");
channel.QueueBind("AuthenticationService", Exchange, "NewUserMessage");
channel.QueueBind("AuthenticationService", Exchange, "EmailChangedMessage");
channel.QueueBind("TweetService", Exchange, "ProfileChangedMessage");
channel.QueueBind("UserService", Exchange, "ProfileImageChangedMessage");
channel.QueueBind("TweetService", Exchange, "ProfileImageChangedMessage");
channel.QueueBind("UserService", Exchange, "AddFollowerMessage");
channel.QueueBind("UserService", Exchange, "RemoveFollowerMessage");
channel.QueueBind("TimelineService", Exchange, "NewPostedTweet");
channel.QueueBind("TimelineService", Exchange, "NewProfileMessage");
channel.QueueBind("TimelineService", Exchange, "AddFollowerMessage");
channel.QueueBind("TimelineService", Exchange, "ProfileChangedMessage");
channel.QueueBind("TimelineService", Exchange, "RemoveFollowerMessage");
channel.QueueBind("TimelineService", Exchange, "ProfileImageChangedMessage");
channel.QueueBind("ModerationService", Exchange, "NewProfanityTweet");
channel.QueueBind("ModerationService", Exchange, "NewProfileMessage");
channel.QueueBind("ModerationService", Exchange, "ProfileChangedMessage");
channel.QueueBind("ModerationService", Exchange, "ProfileImageChangedMessage");
channel.QueueBind("LikeService", Exchange, "ForgetUserMessage");
channel.QueueBind("TweetService", Exchange, "ForgetUserMessage");
channel.QueueBind("FollowService", Exchange, "ForgetUserMessage");
channel.QueueBind("TimelineService", Exchange, "ForgetUserMessage");
channel.QueueBind("ModerationService", Exchange, "ForgetUserMessage");
channel.QueueBind("AuthenticationService", Exchange, "ForgetUserMessage");
channel.QueueBind("LikeService", Exchange, "UnApproveTweetMessage");
channel.QueueBind("TweetService", Exchange, "UnApproveTweetMessage");
channel.QueueBind("TimelineService", Exchange, "UnApproveTweetMessage");
channel.QueueBind("LikeService", Exchange, "DeleteTweetMessage");
channel.QueueBind("TimelineService", Exchange, "DeleteTweetMessage");
channel.QueueBind("ModerationService", Exchange, "DeleteTweetMessage");
channel.QueueBind("TrendingService", Exchange, "NewTopicTweetMessage");
channel.QueueBind("AuthenticationService", Exchange, "NewAdminMessage");
channel.QueueBind("AuthenticationService", Exchange, "UpgradeUserToAdminMessage");
_configured = true;
}
