Observer Pattern in Go is a software design pattern that defines a one-to-many dependency between objects. When an object changes its state, all its dependents are notified and updated automatically. The Observer pattern was introduced as one of the 23 design patterns by the Gang of Four (GoF) in 1994.
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Observer Pattern in GoIntroductionA Brief History: The Observer PatternWhy Should We Use the Observer Pattern?Implementing the Observer Pattern in GolangExample 1: Basic ImplementationExample 2: Implementing Deregister FunctionExample 3: Sending Data to ObserversExample 4: Observer Pattern in Real-world ScenarioSort: