Committing changes

[mandolyte]

After I add a vertex to Titan, I need to commit the change. My log shows my steps:

2016/07/29 07:32:03 Query:graph.addVertex(label, "part", "name", PART)
2016/07/29 07:32:03 Bindings:map[PART:P100]
2016/07/29 07:32:03 Results:<[{"id":20728,"label":"part","type":"vertex","properties":{"name":[{"id":"5y7-fzs-1l1","value":"P100"}]}}]>
2016/07/29 07:32:03 commit() Error:
Script Evaluation Error

I've tried a couple ways with same result:
_, commitErr := gremlin.Query(graph.commit()).Exec()
and
_, commitErr := gremlin.Query(g.commit()).Exec()

How should this be done?

[mandolyte]

Determination and more reading yielded this:
_, commitErr := gremlin.Query(graph.tx().commit()).Exec()
Closing...