# Neptune Loader Examples
Examples

 This example demonstrates how to use the Neptune loader to load data into a Neptune graph database using the Gremlin CSV format. The request is sent as an HTTP POST request to the Neptune loader endpoint, and the request body contains the necessary parameters to specify the data source, format, IAM role, and other configuration options. The response includes the load ID, which can be used to track the progress of the data loading process. 

**Example Request**  
The following is a request sent via HTTP POST using the `curl` command. It loads a file in the Neptune CSV format. For more information, see [Gremlin load data format](bulk-load-tutorial-format-gremlin.md).  

```
aws neptunedata start-loader-job \
  --endpoint-url https://your-neptune-endpoint:port \
  --source "s3://bucket-name/object-key-name" \
  --format "csv" \
  --iam-role-arn "ARN for the IAM role you are using" \
  --s3-bucket-region "region" \
  --no-fail-on-error \
  --parallelism "MEDIUM" \
  --no-update-single-cardinality-properties \
  --no-queue-request
```
For more information, see [start-loader-job](https://docs.aws.amazon.com/cli/latest/reference/neptunedata/start-loader-job.html) in the AWS CLI Command Reference.

```
import boto3
from botocore.config import Config

client = boto3.client(
    'neptunedata',
    endpoint_url='https://your-neptune-endpoint:port',
    config=Config(read_timeout=None, retries={'total_max_attempts': 1})
)

response = client.start_loader_job(
    source='s3://bucket-name/object-key-name',
    format='csv',
    iamRoleArn='ARN for the IAM role you are using',
    s3BucketRegion='region',
    failOnError=False,
    parallelism='MEDIUM',
    updateSingleCardinalityProperties=False,
    queueRequest=False
)

print(response)
```

```
awscurl https://your-neptune-endpoint:port/loader \
  --region us-east-1 \
  --service neptune-db \
  -X POST \
  -H 'Content-Type: application/json' \
  -d '{
        "source" : "s3://bucket-name/object-key-name",
        "format" : "csv",
        "iamRoleArn" : "ARN for the IAM role you are using",
        "region" : "region",
        "failOnError" : "FALSE",
        "parallelism" : "MEDIUM",
        "updateSingleCardinalityProperties" : "FALSE",
        "queueRequest" : "FALSE"
      }'
```
This example assumes that your AWS credentials are configured in your environment. Replace *us-east-1* with the Region of your Neptune cluster.

```
curl -X POST https://your-neptune-endpoint:port/loader \
  -H 'Content-Type: application/json' \
  -d '{
        "source" : "s3://bucket-name/object-key-name",
        "format" : "csv",
        "iamRoleArn" : "ARN for the IAM role you are using",
        "region" : "region",
        "failOnError" : "FALSE",
        "parallelism" : "MEDIUM",
        "updateSingleCardinalityProperties" : "FALSE",
        "queueRequest" : "FALSE"
      }'
```

**Example Response**  

```
{
    "status" : "200 OK",
    "payload" : {
        "loadId" : "ef478d76-d9da-4d94-8ff1-08d9d4863aa5"
    }
}
```