graphql-engine/server/src-lib/Data/Aeson/KeyMap/Extended.hs
Brandon Simmons 6e8da71ece server: migrate to aeson-2 in preparation for ghc 9.2 upgrade
(Work here originally done by awjchen, rebased and fixed up for merge by
jberryman)

This is part of a merge train towards GHC 9.2 compatibility. The main
issue is the use of the new abstract `KeyMap` in 2.0. See:
https://hackage.haskell.org/package/aeson-2.0.3.0/changelog

Alex's original work is here:
#4305

BEHAVIOR CHANGE NOTE: This change causes a different arbitrary ordering
of serialized Json, for example during metadata export. CLI users care
about this in particular, and so we need to call it out as a _behavior
change_ as we did in v2.5.0. The good news though is that after this
change ordering should be more stable (alphabetical key order).

See: https://hasurahq.slack.com/archives/C01M20G1YRW/p1654012632634389

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4611
Co-authored-by: awjchen <13142944+awjchen@users.noreply.github.com>
GitOrigin-RevId: 700265162c782739b2bb88300ee3cda3819b2e87
2022-06-08 15:32:27 +00:00

13 lines
328 B
Haskell

module Data.Aeson.KeyMap.Extended
( mapWithKey,
)
where
import Data.Aeson.Key (Key)
import Data.Aeson.KeyMap (KeyMap, traverseWithKey)
import Data.Functor.Identity
import Hasura.Prelude
mapWithKey :: (Key -> v1 -> v2) -> KeyMap v1 -> KeyMap v2
mapWithKey f km = runIdentity $ traverseWithKey (\k v -> Identity (f k v)) km