What is ESB?

An Enterprise Service Bus (ESB) is a software architecture pattern used for designing and implementing communication and integration between heterogeneous applications and services. It acts as a central intermediary that facilitates data transformation, message routing, protocol conversion, and service orchestration. ESBs are commonly used to connect different systems within an organization, enabling them to exchange information and work together more effectively. It promotes reusability, scalability, and flexibility in enterprise integration.