u/mrtraanin r/node • Recommends
On “What is a microservice? And how to start with it in Node.js?”
A micro-service is just an application design pattern where you split a big and complex application into small and single-purpose applications.
Using NodeJS or any other language doesn't have anything to do with it. You could build a microservice architecture in assembly if you want to.
There are many advantages in using micro services: You can use different languages and technology for each service, it's easier and cheaper to scale, each service are much simpler than one complex application and thus new incomers can understand each piece very fast.
I recommend you this talk about microservices usage at Spotify. It helped me a lot when i began:
link to this video