AWS Neptune: Using 'withStrategies' from a remote console

[Daniel C. Weber]

There's no indication that AWS Neptune's implementation of the Gremlin API won't support 'withStrategies' at all, however, it doesn't work for me from a remote console, e.g.

g.withStrategies(SubgraphStrategy.build().vertexProperties(hasNot('p')).create())

yields

{"detailedMessage":"Failed to interpret Gremlin query: Query parsing failed at line 1, character position at 7, error message : token recognition error at: 'tra'","code":"MalformedQueryException","requestId":"---"}

Same for "g.withStrategies(ReadOnlyStrategy.instance())" and "g.withStrategies()".

I assume it's due to a limitation of the Groovy serializer in Neptune, since there's examples around the web that clearly show Neptune's support for withStrategies when used directly in Java. Can anybody confirm?

Cheers

Daniel

[Stephen Mallette]

You're using the Java syntax in the Console which won't work on Neptune. Have you tried the Groovy syntax:

https://tinkerpop.apache.org/docs/3.4.10/upgrade/#_withstrategies_groovy_syntax

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[Daniel C. Weber]

>>Have you tried the Groovy syntax:

Unfortunately, it doesn't work either:

>g.withStrategies(ReadOnlyStrategy)

{"detailedMessage":"Failed to interpret Gremlin query: Query parsing failed at line 1, character position at 7, error message : token recognition error at: 'tra'","code":"MalformedQueryException","requestId":"---"}

It already fails for no strategies at all (g.withStrategies())

[Stephen Mallette]

hmm - sorry - i may have gotten ahead of myself. that feature came in 3.4.9 and Neptune still recommends 3.4.8. the support should arrive soon though. 

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[Daniel C. Weber]

Alright, thanks a lot!