diff options
Diffstat (limited to 'u/process/env.ts')
| -rw-r--r-- | u/process/env.ts | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/u/process/env.ts b/u/process/env.ts index 1e4fd32..9a55488 100644 --- a/u/process/env.ts +++ b/u/process/env.ts @@ -1,10 +1,11 @@ -import { Either, type IEither } from '@emprespresso/pengueno'; +import { IOptional, Either, Optional, type IEither } from '@emprespresso/pengueno'; -export const getRequiredEnv = <V extends string>(name: V): IEither<Error, V> => - Either.fromFailable<Error, V | undefined>(() => process.env[name] as V | undefined) // could throw when no permission. - .flatMap( - (v) => (v && Either.right(v)) || Either.left(new Error(`environment variable "${name}" is required D:`)), - ); +export const getEnv = <V extends string>(name: string): IOptional<V> => Optional.from(<V>process.env[name]); + +export const getRequiredEnv = <V extends string>(name: string): IEither<Error, V> => + Either.fromFailable(() => getEnv<V>(name).get()).mapLeft( + () => new Error(`environment variable "${name}" is required D:`), + ); type ObjectFromList<T extends ReadonlyArray<string>, V = string> = { [K in T extends ReadonlyArray<infer U> ? U : never]: V; |