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Laura Cowen
In Documentation, Example, Jakarta EE 10, MicroProfile 6.1, MicroProfile Community, MicroProfile Reactive, Open Liberty, WebSphere Liberty

Learn to write reactive microservices with MicroProfile Reactive Messaging 3.0

Eight of the popular Open Liberty developer guides have been updated to use MicroProfile Reactive Messaging 3.0 (and MicroProfile 6.1 and Jakarta EE 10). The Open Liberty developer guides provide complete sample applications that you can run and explore. The guides walk you through the code, explaining the relevant parts and why we made the choices we did when writing the sample app. The Open Liberty developer guides cover a wide range of MicroProfile technologies, including reactive messaging. Give them a go yourself,

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Laura Cowen
In MicroProfile Reactive, Open Liberty, WebSphere Liberty

Negative acknowledgment and more for MicroProfile Reactive Messaging in Open Liberty 24.0.0.2

MicroProfile Reactive Messaging 3.0 introduces a number of new features and changes from MicroProfile Reactive Messaging 1.0, including negative acknowledgments, emitters, and backpressure support. In MicroProfile Reactive Messaging 1.0, messages could be only positively acknowledged. If a problem existed with the payload or if exceptional behavior occurred, no mechanism was available to indicate or to handle the problem if it occurred within the stream. The new negative acknowledgment (nack) support can send or handle these events.

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Laura Cowen
In MicroProfile 6.1, MicroProfile Metrics, MicroProfile Open Tracing API, MicroProfile OpenAPI, Open Liberty, WebSphere Liberty

MicroProfile 6.1 support and MicroProfile OpenAPI updates in Open Liberty 23.0.0.12

Open Liberty 23.0.0.12 introduced MicroProfile 6.1, which included updates to MicroProfile Metrics and MicroProfile Telemetry. MicroProfile Metrics 5.1 provides the ability to configure the statistics that the histogram and timer metrics track and output. MicroProfile Telemetry 1.1 provides the latest Open Telemetry technology.  This release also included updates to MicroProfile OpenAPI, providing the ability to configure the endpoint path of your OpenAPI doc.

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Tarun Telang
In Documentation, Jakarta EE 10, MicroProfile 6.1, MicroProfile Community, MPWG, Releases, Tutorial

Crafting the Official MicroProfile API Tutorial in Collaboration with the MicroProfile Working Group

I am thrilled to share my latest endeavor: Developing the Official MicroProfile API Tutorial in collaboration with the MicroProfile Working Group. As the landscape of cloud-native development evolves, equipping developers with the knowledge and skills to navigate these changes is essential. Accordingly, I am working on this Official MicroProfile API…

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Laura Cowen
In Jakarta EE 10, MicroProfile Metrics, MicroProfile Reactive, Open Liberty, WebSphere Liberty

MicroProfile Reactive Messaging 3.0 in Open Liberty 23.0.0.11-beta

MicroProfile Reactive Messaging 3.0 now works with Jakarta EE 10 and has a number of new features and changes over MicroProfile Reactive Messaging 1.0, including negative acknowledgements, emitters, and backpressure support. In addition, this update to MicroProfile Metrics 5.0 on Open Liberty includes some new vendor metrics at the /metrics endpoint.

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