The trustCertChainFile
can be be downloaded from - https://www.amazontrust.com/repository/SFSRootCAG2.pem
https://docs.aws.amazon.com/en_pv/neptune/latest/userguide/access-graph-gremlin-differences.html
Connecting
start gremlin
bin/gremlin.sh
connect to neptune
gremlin> :remote connect tinkerpop.server conf/neptune-remote.yaml
open remote console
gremlin> :remote console
do a query
gremlin> g.V().limit(1)
Neptune now supports Tinkerpop 3.4 https://aws.amazon.com/blogs/database/amazon-neptune-now-supports-tinkerpop-3-4-features/