Ahattalla

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 # Proxy design pattern
 
 - Intent: It provides a surrogate or a placeholder for another object, to control access to it (the original object)
 
 - Types:
        - Virtual proxy (Lazy initialization). This is when you have a heavyweight service object that wastes system resources by being always up, even though you only need it from time to time.
        - Protection proxy(as in Spotify for subscribers content). This is when you want only specific clients to be able to use the service object; for instance, when your objects are crucial parts of an operating system and clients are various launched applications (including malicious ones).
        - Caching proxy (like kingfisher as an example).