The book Exploring Graphs in Elixir is still in beta, and it uses Gremlex, so it’s probably working just fine, though I noticed as you may have also that because Gremlex is incomplete you might have to use raw queries to go beyond basics. The library’s issues pages show which Gremlin functions they are hoping to add…

Gremlex does work - we have a vendored/forked version of it running Gremlin queries for AWS Neptune.

The core Graph struct here https://github.com/Revmaker/gremlex/blob/master/lib/gremlex/graph.ex - is wrapping a queue for slapping gremlin traversal steps together - adding your own functions for traversal steps is probably going to be needed - but is easy.

At $current_job we’re using a more heavily modified and vendored Gremlex - with some changes to use Jason instead of Poison, support easy addition in a supervision tree w/ runtime config, slightly different encoding, some added steps, etc so will probably get the changes upstream at some point.

I recommend checking out some of the changes in the forks: https://github.com/Revmaker/gremlex/network/members