Channels
#arrow
- m
Maureen
02/01/2019, 5:58 PMgodmode 1🎉 4arrow 3 - b
bjonnh
02/03/2019, 11:34 PMI'm trying to port my function that was using IO to one using fx - b
bjonnh
02/03/2019, 11:35 PM - b
bjonnh
02/03/2019, 11:35 PMI got everything working I think except that I don't know how to return an IO<String> - b
bjonnh
02/03/2019, 11:38 PMI don't really get how I can return an error - s
streetsofboston
02/04/2019, 4:53 PMIf i’d want to try arrow version
, which repository should I use in my gradle files (jcenter() and google() won’t work)? It works fine for arrow version 0.8.20.9.0 - r
raulraja
02/04/2019, 5:15 PMoss jfrog snapshot local - r
raulraja
02/04/2019, 5:16 PMAll pushes to master are deployed here http://oss.jfrog.org/artifactory/oss-snapshot-local/io/arrow-kt/ - s
streetsofboston
02/04/2019, 5:16 PM
?maven { url "<https://www.jfrog.org/>" } - r
raulraja
02/04/2019, 5:17 PMmaven { url "<http://oss.jfrog.org/artifactory/oss-snapshot-local/>" } - s
streetsofboston
02/04/2019, 5:19 PMThank you! This maven url with the
version (not just0.9.0-SNAPSHOT
as the documentation says) did the trick!0.9.0 - r
raulraja
02/04/2019, 5:32 PMFeel free to send improvements to the doc if it can be improved to better reflect the current status. We are currently working in a bunch of hot areas docs included - i
Imran/Malic
02/05/2019, 2:26 PM@streetsofboston Is this possible with your settings beeing: repositories { mavenCentral() jcenter() maven { url 'http://oss.jfrog.org/artifactory/oss-snapshot-local/' } } and arrow_version = "0.9.0-SNAPSHOT" - r
raulraja
02/05/2019, 2:36 PMwith the latest snapshot that returns a non evaluated program - r
raulraja
02/05/2019, 2:36 PMyou need to apply it now - r
raulraja
02/05/2019, 2:36 PM!effect { ... } - r
raulraja
02/05/2019, 2:36 PMthat is to not auto apply effects on behalf of the user. - r
raulraja
02/05/2019, 2:37 PMand make it a conscious decision when they want to bind the effect, until then it's just a pure value that can also be composed before bound. - h
herlevsen
02/06/2019, 2:54 PMHi. Is it weird or bad in any way to use an Either<Error, Unit> to validate some condition? For example “checkUserIsOldEnough(user: User): Either<Error, Unit>“. Is there a better suited way, when we don’t need the “Right” path? - m
mccorby
02/06/2019, 2:59 PM
?Try - h
herlevsen
02/06/2019, 2:59 PMIsn’t Try for catching exceptions? - m
mccorby
02/06/2019, 3:00 PMah... sorry... I see your problem with not using the right path - t
thanerian
02/06/2019, 3:00 PMADT - t
thanerian
02/06/2019, 3:00 PMand one on the branch is just an OK - r
raulraja
02/06/2019, 3:01 PM@herlevsen there is an actual data type for validation. validated - r
raulraja
02/06/2019, 3:01 PMEither won't let you accumulate errors because it short circuits - r
raulraja
02/06/2019, 3:01 PMThe abstraction here is ApplicativeError - t
thanerian
02/06/2019, 3:01 PMCopy codesealed class Validation { objec OK : Validation() class Error1: Validation() class ErrorN: Validatio() } - r
raulraja
02/06/2019, 3:02 PM@herlevsen this explains in detail how error handling can be done in Arrow from different angles including validation https://arrow-kt.io/docs/patterns/error_handling/ - s
streetsofboston
02/06/2019, 3:02 PMWhat about just returning a
if the function never ‘returns’ an ‘error’?Boolean