Sharing isn’t always a good idea.

If you’ve read a bit about microservices, you’ll probably have come across the mantra, “Don’t use shared libraries in microservices.” This is bad advice.

While the sentiment is borne from real issues and there’s real wisdom to be gained in this area, this little statement is too pithy, lacking the relevant context to make it useful. Consequently, it’s open to misinterpretation, in particular to being applied too liberally, and I’ve seen it misunderstood a number of times recently.

What’s the Context for Understanding Shared Libraries in Microservices?

Only recently, I’ve picked up that different people mean different things when they talk about using shared libraries. Continue reading →