TOPIC Microservice architecture is now a huge trend. All big organizations with millions of users are doing microservices. This means they have lots of channels of communication between services and need to send and get much data. At some point, you can find yourself in a situation where your current approach doesn’t provide you with efficient communication, you pay more, wait more, lose more etc. Maybe it’s time to look at gRPC… gRPC is asynchronous by its nature. But old API, Java …