March 26, 2024

Improving `with` Clause Readability in Elixir

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Improving `with` Clause Readability in Elixir

Source: elixirstreams.com

Elixir's `with` construct is powerful for creating readable happy paths in code. However, they can become problematic when `else` clauses grow too complex, making it hard to match errors with their corresponding conditions in the `with` statement. The proposed solution to address this complexity is by refactoring the code to extract helper functions that handle the error cases closer to their source, and by ensuring all errors consistently return a tuple in the form of `{:error, reason}`. This refactoring technique helps keep the main function clean and focused exclusively on the happy path.

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