Found an error? Have a suggestion?Edit this page on GitHub

What is an application?

An application is any computer program or a group of them.

An application could also be a micro-service, IoT device (sensor), mainframe process, etc. Users may even write applications in different programming languages if they support one of the selected protocols.

Why do we need applications?

In Event-Driven Architecture (EDA), an application must be a producer, a consumer, or both. Applications must also use the protocols the server supports if they wish to connect and exchange messages.

Applications: producers and consumers

The above diagram describes a message communication traveling through a channel between a PRODUCER application and a CONSUMER application.

When writing your AsyncAPI document, make sure to describe what a user can do with your application; not what the application does. In other words, if your application is a producer, your AsyncAPI document should describe where users can subscribe to, to receive messages produced by your producer application.
Was this helpful?
Help us improve the docs by adding your contribution.
Create Issue on GitHub