Haskell binding for Gremlin graph query language

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LTS Haskell 19.33:
Stackage Nightly 2022-03-17:
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BSD-3-Clause licensed and maintained by Toshio Ito
This version can be pinned in stack with:greskell-,5889


Haskell binding for Gremlin query language.

See the package description, or project README.


Toshio Ito [email protected]


Revision history for greskell – 2018-10-03

  • Confirm test with base- – 2018-08-17

GTraversal module

  • Add (<$.>), (<*.>), gLimit, gTail, gSkip, gId, gLabel functions. – 2018-07-24

  • Confirmed test with doctest-discover- – 2018-06-24

  • Confirmed test with doctest-0.16.0. – 2018-06-24 – 2018-06-21

  • Confirmed test with aeson- and hint-0.8.0.

Graph module

  • BREAKING CHANGE: Now AVertex, AEdge, AVertexProperty are based on GValue type, instead of GraphSON Value. This is for taking care of possibly nested GraphSON-encoded values in a generic way.

  • BREAKING CHANGE: parseOneValue, parseListValues, parseNonEmptyValues functions now require FromGraphSON constraint, instead of FromJSON, because property types of AVertex etc have changed.

  • Add Cardinality type and its enum instances.

  • Add KeyValue type and (=:) operator.

  • (internal change): PropertyMapGeneric is now based on HashMap.Strict.

The top Data.Greskell module

  • Re-export GMap and AsIterator modules.

GTraversal module

  • Add gV, gV', gAddE, gAddE', gFrom, gTo, gProperty, gPropertyV, sAddV, sAddV'. – 2018-04-08

  • Add Semigroup instance to PropertyMapSingle and PropertyMapList.
  • Confirmed test with base-4.11 (with hint-test and server-test disabled) – 2018-03-12

  • First version. Released on an unsuspecting world.