The podcast discusses the evolution of AsyncAPI V3, challenges in migration, benefits of async event-driven architectures, and future roadmap including potential V4 version. It also touches on Glee framework for streamlined development and hints at AI automation for better user experience.
AsyncAPI V3 shifts from publish-subscribe to send-receive perspective for clearer communication definitions.
Version 3 of AsyncAPI introduces request-reply support, accommodating diverse messaging patterns beyond traditional models.
Deep dives
Understanding Async API Format and Specification
Async API is a format and specification that defines interactions between services exchanging messages, similar to how messaging occurs in Kafka or WebSocket. It helps in defining communication between applications or services, detailing what messages are sent and received, along with how to validate them. Async API is accompanied by tooling and evolved from Open API, primarily focusing on asynchronous interactions.
Evolution to Improve Clarity with Send and Receive Verbs
Version 3 of Async API addresses confusion with publish and subscribe, shifting to send and receive perspectives for better defining interactions. This change stems from the understanding that in messaging, interactions are often client-based with the server acting as a broker. By altering the perspective to emphasize what an application is doing rather than what others can do with it, Version 3 offers clarity in defining communication patterns.
Introduction of Request-Reply Support and Flexibility in Messaging Patterns
Async API Version 3 introduces request-reply support, accommodating nuances in event-driven architectures where messages may be published on one topic for replies on another or dynamic topic creation for responses. This addition caters to diverse messaging patterns beyond traditional request-response models, offering flexibility in defining interactions over various protocols like AMQP, MQTT, or Kafka.
Migration Considerations and Tools for Version 2 Users and New Adopters
For existing users of Async API Version 2, migrating to Version 3 is recommended based on specific needs like request-reply requirements or challenges with previous publish-subscribe definitions. Tools like Studio and CLI aid in seamless migration. New users are advised to start directly with Version 3 for ongoing support and alignment with evolving features, guaranteeing access to updated tooling and vendor support for enhanced documentation and messaging interactions.
This is a re-post from December 2023.
In this episode of the podcast, Thomas Betts speaks with Fran Mendez about version 3 of AsyncAPI. The standard format for describing asynchronous APIs has evolved, and has made some breaking changes to address limitations in earlier versions.
Read a transcript of this interview: https://bit.ly/3VjVekl
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