RabbitMQ handling recieved topic events












0















Say I'm consuming a channel with a queue that's bound to mulitple routing keys.
So for example I'm recieving events such as user.updated, order.created etc.



When I recieve these events, what is a correct way to handle them?
In the example in the documentation (which uses pubsub) a subscriptionmanager is used. This subscription manager contains the events (as string) and their handlers. So when you get an event, you look for the corresponding handler and fire the handle method. I guess for topics a similar approach could be used?



Is this the way handling events is done in enterprise applications? What other methods are there? One problem I can see occuring is that when the serialized event from App A, gets deserialized at app B but doesn't match anymore because a field or whatever got added.



To prevent this a common "event" library could be created that holds all the events, but I have read in multiple articles it's bad practise to share libraries among MicroServices.



GITHUB:



RabbitMq pub/sub:
https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBusRabbitMQ/EventBusRabbitMQ.cs



RabbitMq subscription manager:
https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBus/InMemoryEventBusSubscriptionsManager.cs



The docs:
https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/multi-container-microservice-net-applications/rabbitmq-event-bus-development-test-environment










share|improve this question



























    0















    Say I'm consuming a channel with a queue that's bound to mulitple routing keys.
    So for example I'm recieving events such as user.updated, order.created etc.



    When I recieve these events, what is a correct way to handle them?
    In the example in the documentation (which uses pubsub) a subscriptionmanager is used. This subscription manager contains the events (as string) and their handlers. So when you get an event, you look for the corresponding handler and fire the handle method. I guess for topics a similar approach could be used?



    Is this the way handling events is done in enterprise applications? What other methods are there? One problem I can see occuring is that when the serialized event from App A, gets deserialized at app B but doesn't match anymore because a field or whatever got added.



    To prevent this a common "event" library could be created that holds all the events, but I have read in multiple articles it's bad practise to share libraries among MicroServices.



    GITHUB:



    RabbitMq pub/sub:
    https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBusRabbitMQ/EventBusRabbitMQ.cs



    RabbitMq subscription manager:
    https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBus/InMemoryEventBusSubscriptionsManager.cs



    The docs:
    https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/multi-container-microservice-net-applications/rabbitmq-event-bus-development-test-environment










    share|improve this question

























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      0








      Say I'm consuming a channel with a queue that's bound to mulitple routing keys.
      So for example I'm recieving events such as user.updated, order.created etc.



      When I recieve these events, what is a correct way to handle them?
      In the example in the documentation (which uses pubsub) a subscriptionmanager is used. This subscription manager contains the events (as string) and their handlers. So when you get an event, you look for the corresponding handler and fire the handle method. I guess for topics a similar approach could be used?



      Is this the way handling events is done in enterprise applications? What other methods are there? One problem I can see occuring is that when the serialized event from App A, gets deserialized at app B but doesn't match anymore because a field or whatever got added.



      To prevent this a common "event" library could be created that holds all the events, but I have read in multiple articles it's bad practise to share libraries among MicroServices.



      GITHUB:



      RabbitMq pub/sub:
      https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBusRabbitMQ/EventBusRabbitMQ.cs



      RabbitMq subscription manager:
      https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBus/InMemoryEventBusSubscriptionsManager.cs



      The docs:
      https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/multi-container-microservice-net-applications/rabbitmq-event-bus-development-test-environment










      share|improve this question














      Say I'm consuming a channel with a queue that's bound to mulitple routing keys.
      So for example I'm recieving events such as user.updated, order.created etc.



      When I recieve these events, what is a correct way to handle them?
      In the example in the documentation (which uses pubsub) a subscriptionmanager is used. This subscription manager contains the events (as string) and their handlers. So when you get an event, you look for the corresponding handler and fire the handle method. I guess for topics a similar approach could be used?



      Is this the way handling events is done in enterprise applications? What other methods are there? One problem I can see occuring is that when the serialized event from App A, gets deserialized at app B but doesn't match anymore because a field or whatever got added.



      To prevent this a common "event" library could be created that holds all the events, but I have read in multiple articles it's bad practise to share libraries among MicroServices.



      GITHUB:



      RabbitMq pub/sub:
      https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBusRabbitMQ/EventBusRabbitMQ.cs



      RabbitMq subscription manager:
      https://github.com/dotnet-architecture/eShopOnContainers/blob/master/src/BuildingBlocks/EventBus/EventBus/InMemoryEventBusSubscriptionsManager.cs



      The docs:
      https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/multi-container-microservice-net-applications/rabbitmq-event-bus-development-test-environment







      c# events rabbitmq






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      asked Nov 27 '18 at 15:34









      BartKrulBartKrul

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