Messaging Asynchronous

By asynchronous, we mean: The process that processes data without returning to the sending system with an update on whether the data was processed successfully.

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Key characteristics of asynchronous messaging are:

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* Non-blocking. The sender initiates the process and can continue with the following message

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* Systems can therefore be loosely connected

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* Messages can temporarily be kept in the queue if an end system to which the messages need to be delivered is scheduled to go offline

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* Supports one-to-many distribution of messages over the integration landscape

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== 3. Messaging Asynchronous ==

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Asynchronous messaging is the pre-dominant option when you implement a messaging integration via eMagiz.

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With this method, the sending party supplies the data to eMagiz (via push or pull). eMagiz, in turn, places the data on a queue (in most cases an onramp queue).

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This logic means there is no need for the external system to wait for a reply to see what the other system thinks of the message.

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Furthermore, the system can supply the data somewhere and forget about it. eMagiz will ensure to deliver the information to all systems that want to receive the data.

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Because of this loose coupling between systems via the asynchronous five-layer model in eMagiz, you can add supplying and receiving systems quickly and replace them if necessary.

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On top of that, it gives you the option to keep data in a queue temporarily. This functionality is, for example, convenient if there is scheduled maintenance in one of the receiving systems.

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The sending system can continue to send data to eMagiz, and eMagiz will keep it in the queue until the scheduled maintenance is finished.

== 4. Assignment ==

Analyze an asynchronous messaging flow from entry to exit and determine which queues are used in the process.

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This assignment can be completed with the help of your (Academy) project you have created/used in the previous assignment.

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== 5. Key takeaways ==

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* Asynchronous messaging is the pre-dominant option when you implement a messaging integration via eMagiz.

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* Key characteristics of asynchronous messaging are:

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** Non-blocking. The sender initiates the process and can continue with the next message

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** Systems can therefore be loosely connected

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** Messages can temporarily be kept in the queue if an end system to which the messages need to be delivered is scheduled to go offline

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== 6. Suggested Additional Readings ==

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If you are interested in this topic and want more information, please read the help text provided by eMagiz.

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== 7. Silent demonstration video ==

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This video demonstrates how you could have handled the assignment and gives you some context on what you have just learned.

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{{video attachment="crashcourse-messaging-messaging-asynchronous.mp4" reference="Main.Videos.Microlearning.WebHome"/}}

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