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API Proxy Pattern: Reusable and Mockable API Calls Allan A. Chua https://www.pogsdotnet.com

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https://bit.ly/2HhiRVv GITHUB DEMO LINK

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https://bit.ly/2TH1mDM Slide Deck Link

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• What is Proxy Design Pattern • Problems it solves • How to implement • How to improve • How it makes testing easy • The Future Agenda

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• Provide a surrogate or placeholder for another object to control access to it. • Use an extra level of indirection to support distributed, controlled, or intelligent access. • Add a wrapper and delegation to protect the real component from undue complexity. What is Proxy Pattern

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How it Looks Like Object Consumer Proxy Encapsulates access management

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How it Looks Like

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How it Looks Like

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Why its perfect for API Calls API Consumer Proxy Encapsulates protocol and framework used to call API

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Bad API Reuse Consumer A Consumer B Consumer C API A API B API A API B API B

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Good API Reuse Consumer A Consumer B Consumer C API B API A Proxy A Proxy B

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Easy and Predictable Testing Consumer A API A Proxy A Mock Proxy Consumer Testing

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ES6 Proxies

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