Using applicative-functors on string[]

[mozesa]

Hi,

I would like to accumulate deserializing errors, and avoid short-circuiting behavior.

I have found applicative functors, but I don't know how to use that on string[] and harvest errors.

static Aff<RT, Unit> saveToDb =>
    (from files in Eff(() => Directory.GetFiles(@"c:\test\", "*-*-*-*-*.txt"))
     from mids in SuccessEff(files.Map(deserialize)) // deserialize can fail, so I would like to know which paths were failed
     from _ in Console<RT>.writeLine(string.Join(',', mids.Lefts()))
     select unit)
    | @catch(error => Console<RT>.writeLine(error.Message));

static Either<Error, Mid0061> deserialize(string path) => ...

Thanks in advance.