Category: JMS

Table of Contents Introduction What Is Dead Letter Queue Prerequisites Project Setup Application Properties Custom Exception Producer or Sender Consumer or Receiver Config Class Spring Boot Main Class Testing RabbitMQ Dead Letter Queue Source Code Introduction In this example I am going to show you how to retry the failed messages in RabbitMQ message broker….

Table of Contents Introduction Callback Queue Message Properties Correlation Id Prerequisites Project Setup Application Properties Configuration Server Client Main Class Output – Testing RPC Source Code Introduction In this tutorial, I am going to show you how to create Spring Boot RabbitMQ RPC Example. RPC is an acronym which stands for Remote Procedure Call, in…

Table of Contents Introduction Topic Exchange Prerequisites Project Setup Application Properties Sender Receiver Configuration Main Class Testing Message Pattern Source Code Introduction In this tutorial I am going to show you how to build Spring Boot RabbitMQ message pattern example with TopicExchange. FanoutExchange is only capable to broadcast messages to all receivers and it has limitations to send…

Table of Contents Introduction Direct Exchange Prerequisites Project Setup Application Properties Configuration Sender Receiver Spring Boot Main Class Testing RabbitMQ Routing Application Source Code Introduction In this Spring RabbitMQ Routing example I am going to show you how to route messages to particular subscribers. Therefore, all receivers are not going to receive all messages, but…

Table of Contents Introduction Exchanges Prerequisites Project Setup Sender Receiver Exchange Name Configurations Spring Boot Main Class Testing Rabbitmq Publish Subscribe Source Code Introduction Here I am going to build an example about publish subscribe model using Spring Boot and RabbitMQ message broker. In publish subscribe model the messages will be delivered to multiple consumers….

Table of Contents Introduction Prerequisites Application Properties Producer Consumer Configuration Spring Boot Main Class Testing Work Queues Task Queues Source Code Introduction Here in this example I am going to show you how to build work queues or task queues using Spring Boot framework and RabbitMQ broker. Work queues are used to distribute time-consuming tasks…

Table of Contents Introduction Prerequisites Project Setup Application Properties Producer Consumer Configuration Spring Boot RabbitMQ Main Class Testing Producer Consumer Application Source Code Introduction In this tutorial I will show you how to build producer consumer example using Spring Boot and RabbitMQ. This is also called point-to-point messaging model as there are only one producer…

Problem Let’s say you are starting your Spring Boot application and your (Spring Boot) application is trying to connect to vhost (virtual host) ‘xyz’ that does not exist in RabbitMQ server. So, you are getting error – access to vhost ‘xyz’ refused for use ‘guest’. By default, the user which is used to connect to RabbitMQ is ‘guest’….

Introduction In this tutorial I am going to explain about few common startup problems or errors of RabbitMQ server after a fresh installation. I am using 3.6.1 version of the RabbitMQ message broker. RabbitMQ Startup Errors You might have faced the following errors during starting the RabbitMQ message broker after installation in your system. Starting…

Introduction The example I will show you here about the asynchronous communication among microservices or how microservices communicate asynchronously among themselves. A microservices-based application is a distributed system running on multiple processes or services, usually even across multiple servers or hosts. Each service instance is typically a process. Therefore, services must interact using an inter-process…

Introduction Here in this tutorial I am going to show you how to work with Apache Kafka consumer and broker failover in multi-broker clusters. Kafka is a distributed event streaming platform that lets you read, write, store, and process events (also called records or messages in the documentation) across many machines. Example events are payment…

Here I am going to build an application to show how to use Spring Cloud Bus. Let’s say you have multiple applications reading properties using Spring Cloud Config from centralized configuration files (for example, from Git repository). Spring Cloud Config is where you can have not only your all configurations centrally managed but also you…