Understanding OTP Design Principles in Erlang

2023/08/21

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The article provides an overview of the OTP design principles in Erlang, which define how to structure Erlang code in terms of processes, modules, and directories. It highlights the concept of supervision trees, where supervisors and workers are organized in a hierarchical structure. The article also introduces the concept of behaviours, which are formalizations of common patterns in a supervision tree. Behaviours allow developers to divide the code for a process into a generic part (a behaviour module) and a specific part (a callback module). This approach improves code reusability, readability, and consistency across applications. The article mentions the standard Erlang/OTP behaviours, such as gen_server, gen_statem, gen_event, and supervisor, and how they can be used to implement different functionalities. Overall, this article provides valuable insights into the OTP design principles in Erlang, making it a must-read for developers looking to enhance their understanding of Erlang and improve their code structure.