SOLID principles #5: I - Dependency Inversion #solidprinciples #softwareengineering

SOLID part 5 of 5 D is the Dependency Inversion Principle, which focuses on separating high level code (business or Application logic) from low level code (API's, databases, frameworks). In the law of DIP both should depend on abstractions, not concrete implementations. Think: rather that hard coding HOW something is done, the high level code defines what it needs through an interface or contract, and the concrete implications are later injected. This is an inversion of the usual dependency dire