Software developmentfromMedium1 month agofp-ts library in Hoppscotch codebase.Hoppscotch CLI uses fp-ts, particularly Either, to express functional error handling and leverage typed functional abstractions in TypeScript.
Software developmentfromMedium2 months agoReturn type Are Contracts. Either[E, Option[A]] Breaks Them.Public methods must make a single clear promise; encode absence as an explicit error variant (e.g., NotFound) and return Either[E, A] rather than Either[E, Option[A]].