What is the most difficult stuff to manage in software? I would say external dependencies.
🏗 As soon as we connect to an external system. Being a database, a queue, or an API, we get a dependency that we must maintain for the system's life.
🤔 If the dependency change, we are forced to change our software because we don't have control.
🎓 Worse still, if we blend the dependency with our business code. Then we are in for a world of pain.
Don't be that guy. Do it right instead.
✔ Use interfaces to services in your business logic
✔ Make a bridge towards external services, so changes are contained.
✔ Use ports and adapters style architecture to protect your code.
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