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Interfaces in Go

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July 21, 2020
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Interfaces in Go

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Audi
Data Engineer at SpaceStock

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Ngalam Backend Community

July 21, 2020
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Transcript

  1. Interfeces in Go

  2. Interfeces in Go

  3. None

  4. What is Interface? • abstraction • hide implementation details •

    contract

  5. Why Interface? • allows multiple implementations • limits scope of

    implementations

  6. Go Interface • implemented implicitly • generally defined in consumer

    • composition > inheritance

  7. Interface Pollution

  8. Go Proverbs on Interface • the bigger the interface, the

    weaker the abstraction • interface{} says nothing • accept interfaces, return structs

  9. Takeaways • be lazy whenever you can • refrain from

    defining interface • if you need, define interface in consumer