September 2024
Intermediate to advanced
488 pages
15h 59m
Spanish
Content preview from Kafka: La Guía Definitiva, 2ª Edición
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Capítulo 3. Productores Kafka: Escribir mensajes en Kafka
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Tanto si utilizas Kafka como cola, bus de mensajes o plataforma de almacenamiento de datos, siempre utilizarás Kafka creando un productor que escriba datos en Kafka, un consumidor que lea datos de Kafka, o una aplicación que cumpla ambas funciones.
Por ejemplo, en un sistema de procesamiento de transacciones con tarjeta de crédito, habrá una aplicación cliente, quizás una tienda online, responsable de enviar cada transacción a Kafka inmediatamente cuando se realiza un pago. Otra aplicación es responsable de comprobar inmediatamente esta transacción con un motor de reglas y determinar si la transacción se aprueba o se deniega. La respuesta de aprobación o denegación puede entonces escribirse de nuevo en Kafka, y la respuesta puede propagarse de nuevo a la tienda online donde se inició la transacción. Una tercera aplicación puede leer tanto las transacciones como el estado de aprobación desde Kafka y almacenarlos en una base de datos donde los analistas puedan revisar más tarde las decisiones y quizás mejorar el motor de reglas.
Apache Kafka incluye API de cliente integradas que los desarrolladores pueden utilizar al desarrollar aplicaciones que interactúen con Kafka.
En este capítulo aprenderemos a utilizar el productor Kafka, empezando por una visión general de su diseño y componentes. Mostraremos cómo crear ...
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