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pm_osc

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•Created by pm_osc on 5/17/2024 in #questions

Authorization with transaction results in error

Thanks a lot @Kennh for your help on this. Indeed, I missed the iterate() step when I converted our real scenario into a simplified one. Thank you for the background information on this and thanks to Lyndon for the proposed fix.

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ATApache TinkerPop

•Created by pm_osc on 5/17/2024 in #questions

Authorization with transaction results in error

Thanks a lot @Kennh for looking into this. You are right, our main goal is to be able to use transaction in Gremlin Python. Please see the below Python code snippet for reproducing the "This AuthorizationHandler only handles requests with OPS_BYTECODE or OPS_EVAL." error with our real use case. Before running the snippet, gremlinpython 3.7.0 package needs to be installed.

from gremlin_python.process.anonymous_traversal import traversal
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection

g = traversal().withRemote(DriverRemoteConnection('ws://localhost:8182/gremlin', 'g', username='stephen', password='password'))

# create a transaction
tx = g.tx()

# spawn a new GraphTraversalSource, binding all traversals established from it to tx.
gtx = tx.begin()

try:
  # execute a traversal within the transaction.
  gtx.addV().property('name', 'test1').property('age', 11)
  # commit the transaction
  tx.commit()
except Exception as e:
  print(e)
  # rollback the transaction if an error occurs
  tx.rollback()

from gremlin_python.process.anonymous_traversal import traversal
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection

g = traversal().withRemote(DriverRemoteConnection('ws://localhost:8182/gremlin', 'g', username='stephen', password='password'))

# create a transaction
tx = g.tx()

# spawn a new GraphTraversalSource, binding all traversals established from it to tx.
gtx = tx.begin()

try:
  # execute a traversal within the transaction.
  gtx.addV().property('name', 'test1').property('age', 11)
  # commit the transaction
  tx.commit()
except Exception as e:
  print(e)
  # rollback the transaction if an error occurs
  tx.rollback()

Thank you.

12 replies

ATApache TinkerPop

•Created by pm_osc on 5/17/2024 in #questions

Authorization with transaction results in error

Thank you for your message. Yes, with JanusGraph 1.0 and Gremlin Server 3.7.0, I see the very same error, that is why I think this is related to Gremlin Server and not JanusGraph specific issue. Thanks.

12 replies

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