The most common form of direct communication between microservices is using the HTTP protocol with Rest and passing JavaScript Object Notation, the famous JSON. Communication works great for APIs, providing endpoints for external consumption. However, communication using HTTP with JSON has a high cost in relation to performance.
First, this is because in the case of communication between microservices, it would be more appropriate to optimize than the HTTP protocol creating some sort of pipeline or keeping the connection alive. The problem is the control of the connection timeout, which shouldn't be very strict, and in addition could start to close doors, threads, or processes with a simple silent error. ...
