Microservices
Generally there are microservice frameworks that sit between microservices, and the core of them is calling back and forth over RPC.
The more mature frameworks right now: gRPC and Alibaba’s Apache Dubbo-this one might work better besides those there’s Nacos, for managing microservice config, also from Alibaba
If you’re going to use microservices, you can’t do without these core tools.
Translation note. I wrote this in Chinese. This English version is an LLM translation, so the wording is not mine even though the thinking is. Original: 微服务.