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kafkademo's Introduction

KafkaDemo

Proyecto demo sobre uso de kafka en una aplicación SpringBoot

N|Solid

SpringBoot 2.0 && KaaS (https://www.cloudkarafka.com/)

En este ejemplo tenemos una aplicación SpringBoot con un Consumer y un Producer sobre topic Kafka en CloudKarafka.

Requerimientos

  • Registro en CloudKarafka
  • Maven
  • Java 8
  • Docker (Si quieres ejecutarlo en un Docker)

Properties

En el aplication.yml debemos indicar los brokers, el topic, username y password

kafka:
  brokers:
    url: XXX   
  cloudkarafka:
    topic: XXX
    username:  XXX
    password:  XXX

Ejecutar:

En Docker(si lo quieres ejecutar en Docker):

$ mvn install dockerfile:build 
$ docker run -p 8080:8080 -t springio/kafkademo

En Maven:

$ mvn clean install 
$ java -jar ./target/kafkademo-0.0.1-SNAPSHOT.jar

Producer

Para producir un mensaje, en un navegador usando la url

http://localhost:8080/kafka/producer?data=Mensaje

El puerto por defecto es el 8080 si es diferente, cambiarlo, el mensaje a enviar sera el string que tenga la variable data

Consumer

En otro navegador por medio de la siguiente url veremos todos los mensajes que se envien al topic.

http://localhost:8080/kafka/consumer

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