[onetimeuse92304]

Well, technically, you can construct the microservices preserving type safety. You can have an interface with two implementations

- on the service provider, the implementation provides the actual functionality,

- on the client, the implementation of the interface is just a stub connecting to the actual service provider.

Thus you can sort of provide separation of services as an implementation detail.

However in practice very few projects elect to do this.

[sophiabits]

Even with this setup in place you need a heightened level of caution relative to a monolith. In a monolith I can refactor function signatures however I desire because the whole service is an atomically deployed unit. Once you have two independently deployed components that goes out the window and you now need to be a lot more mindful when introducing breaking changes to an endpoint’s types