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Optimize Vert.x service-to-service communication using custom MessageCodecs and the request-reply pattern to send domain objects across a clustered event bus without blocking.
Vert.x Event Bus rejects arbitrary POJOs by default. Learn how custom message codecs restore type safety, what registration discipline they demand in a cluster, and how to verify the result.
Shows how to define requirements, build the minimal Vert.x Event Bus design with custom MessageCodec, set trust boundaries, monitor operation, and recognise when to evolve the design.
vertx