December 2019
Intermediate to advanced
248 pages
5h 34m
English
Content preview from Designing Elixir Systems With OTPBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Wrap the Server in an API
The API layer’s job is to insulate the server layer from inconsistent data and to stitch together independent concepts from the individual GenServer implementations. It will also hide internal implementations from the user, such as the Quiz struct we make available from our QuizManager server. Any implementation details from server layers or the functional cores will be off limits.
Though our internal details may be radically different, the API-wrapped server will share many characteristics of an OOP object. It will hide implementation details, including state, behind an API of functions. It will allow complex interactions between components with message passing, and will allow convenient state tracking.
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