How to Utilize Keyword Module in Elixir for API Options

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How to Utilize Keyword Module in Elixir for API Options

Source: dev.to

Type: Post

Herminio Torres wrote an article exploring how the Keyword module, specifically the functions Keyword.fetch!/2 and Keyword.get/3, can improve handling options in API function calls in Elixir. He presents two different approaches to defining a configuration function: one without using options (which leads to a need for multiple arities and unnecessary parameter passing) and one with options (which allows for more error expressiveness, named arguments with keyword lists, and a single function arity). Torres demonstrates the advantages of the latter approach, highlighting better error messages and a cleaner API for the config function by using the Keyword module.

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