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Utilizzare con un SDK CreateGraph AWS
Gli esempi di codice seguenti mostrano come utilizzare CreateGraph.
Gli esempi di operazioni sono estratti di codice da programmi più grandi e devono essere eseguiti nel contesto. È possibile visualizzare questa operazione nel contesto nel seguente esempio di codice:
- Java
-
- SDK per Java 2.x
-
/**
* Executes the process of creating a new Neptune graph.
*
* @param client the Neptune graph client used to interact with the Neptune service
* @param graphName the name of the graph to be created
* @throws NeptuneGraphException if an error occurs while creating the graph
*/
public static void executeCreateGraph(NeptuneGraphClient client, String graphName) {
try {
// Create the graph request
CreateGraphRequest request = CreateGraphRequest.builder()
.graphName(graphName)
.provisionedMemory(16)
.build();
// Create the graph
CreateGraphResponse response = client.createGraph(request);
// Extract the graph name and ARN
String createdGraphName = response.name();
String graphArn = response.arn();
String graphEndpoint = response.endpoint();
System.out.println("Graph created successfully!");
System.out.println("Graph Name: " + createdGraphName);
System.out.println("Graph ARN: " + graphArn);
System.out.println("Graph Endpoint: " +graphEndpoint );
} catch (NeptuneGraphException e) {
System.err.println("Failed to create graph: " + e.awsErrorDetails().errorMessage());
} finally {
client.close();
}
}
- Python
-
- SDK per Python (Boto3)
-
"""
Running this example.
----------------------------------------------------------------------------------
VPC Networking Requirement:
----------------------------------------------------------------------------------
Amazon Neptune must be accessed from **within the same VPC** as the Neptune cluster.
It does not expose a public endpoint, so this code must be executed from:
- An **AWS Lambda function** configured to run inside the same VPC
- An **EC2 instance** or **ECS task** running in the same VPC
- A connected environment such as a **VPN**, **AWS Direct Connect**, or a **peered VPC**
"""
GRAPH_NAME = "sample-analytics-graph"
def main():
config = Config(retries={"total_max_attempts": 1, "mode": "standard"}, read_timeout=None)
client = boto3.client("neptune-graph", config=config)
execute_create_graph(client, GRAPH_NAME)
def execute_create_graph(client, graph_name):
try:
print("Creating Neptune graph...")
response = client.create_graph(
graphName=graph_name,
provisionedMemory = 16
)
created_graph_name = response.get("name")
graph_arn = response.get("arn")
graph_endpoint = response.get("endpoint")
print("Graph created successfully!")
print(f"Graph Name: {created_graph_name}")
print(f"Graph ARN: {graph_arn}")
print(f"Graph Endpoint: {graph_endpoint}")
except ClientError as e:
print(f"Failed to create graph: {e.response['Error']['Message']}")
except BotoCoreError as e:
print(f"Failed to create graph: {str(e)}")
except Exception as e:
print(f"Unexpected error: {str(e)}")
if __name__ == "__main__":
main()