MassTransit is a powerful message-based communication library for using RabbitMQ as the message broker. This article explains how to set up MassTransit in an ASP.NET Core application to send and receive messages between different parts of your application. Before setting up MassTransit, you need to install RabbitMQ, which is a message broker used to store and forward messages in a MassTransit application. To set up the application as a publisher, the configuration settings like hostname, port, username, and password need to be provided. The article also explains how to create a message/data class, how to avoid hard coding the endpoint, and the difference between sending and publishing the message.
