Reading Neptune stream data

aws neptunedata get-propertygraph-stream \
  --endpoint-url https://your-neptune-endpoint:port \
  --iterator-type TRIM_HORIZON \
  --limit 10

To read from a specific position in the stream, use the --commit-num and --iterator-type parameters:

aws neptunedata get-propertygraph-stream \
  --endpoint-url https://your-neptune-endpoint:port \
  --limit 10 \
  --commit-num 1 \
  --iterator-type AT_SEQUENCE_NUMBER

For more information, see get-propertygraph-stream in the Amazon CLI Command Reference.

import boto3
import json
from botocore.config import Config

client = boto3.client(
    'neptunedata',
    region_name='us-east-1',
    endpoint_url='https://your-neptune-endpoint:port',
    config=Config(read_timeout=65)
)

response = client.get_propertygraph_stream(
    limit=10,
    iteratorType='TRIM_HORIZON'
)

print(json.dumps(response['records'], indent=2, default=str))

To paginate through the stream, use the commitNum and opNum from the lastEventId in the response:

last_event = response['lastEventId']
next_response = client.get_propertygraph_stream(
    limit=10,
    commitNum=last_event['commitNum'],
    opNum=last_event['opNum'],
    iteratorType='AFTER_SEQUENCE_NUMBER'
)

awscurl https://your-neptune-endpoint:port/propertygraph/stream?limit=10 \
  --region us-east-1 \
  --service neptune-db

For more information about using awscurl with IAM authentication, see Using awscurl with temporary credentials to securely connect to a DB cluster with IAM authentication enabled.

curl https://your-neptune-endpoint:port/propertygraph/stream?limit=10