I am not sure about Elexir, but in Ocaml, someone using this style would gravitate towards Result.map and Result.bind (Defined like this: given (Ok a) or (Err b

I am not sure about Elexir, but in Ocaml, someone using this style would gravitate towards Result.map and Result.bind (Defined like this: given (Ok a) or (Err b), - (Result.map f) returns (Ok (f(a))) or (Err b) - (Result.bind f) returns f(a) or (Err b) ) One could then write params.id |> find_user |> Result.bind (verify_user_has_access_to params.post_id) |> etc Reasons for that are 2-fold 1. It de-clutters your functions (you do not need that match statement anymore) 2. It becomes evident - which functions will simply pass down errors (bind or map) vs. which ones may handle them - which functions may raise new errors (bind can, map can't)