Over the past month, Netflix has been sharing stories from the API optimization effort that started a little over a year ago. The initial focus[1] of the performance optimizations was to reduce chattiness and the payload size but over the course of the year, as a result of the redesign, API development and operations was distributed and the services layer became asynchronous. The primary redesign feature was redefining the boundary of client and server responsibilities[2] to enable fine grained customizations such as content formatting to address the differences(memory capacity, document delivery and models, user interactions etc) among the various client devices that connect to Netflix.
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