Understanding :gen_statem in Elixir

The blog post 'gen_statem in context' by Cameron Duley provides an insightful overview of the :gen_statem behaviour in Elixir, targeted towards readers who aim to expand their knowledge on this particular behaviour. It is a detailed guide on when to appropriately use :gen_statem, as opposed to using GenServer or other processes, and it stresses the significance of understanding the state in which your GenServer process, rather than your application's data, exists. The author emphasizes that :gen_statem is highly suitable for cases such as managing persistent connections and dealing with data transitions. Additionally, the article presents some useful tutorials and resources for grasping the nuances of :gen_statem, including those by Andrea Leopardi and Andrew Bennett. It also discusses common pitfalls and the steep learning curve when starting out with :gen_statem. Finally, the post compares the usage of :gen_statem to GenServer in Elixir and Erlang GitHub repositories, revealing its less frequent but important application in managing connections and highlights several open-source projects that utilize :gen_statem.