s3events

s3events is a command line tool to simulate and send AWS S3 events to new or existing event handlers. Supports SNS, SQS, Lambda.

Sample use cases:

• Resend s3 object created events to event handlers.
• Simulate object removal events without deleting objects.

Installation

npm install -g s3events

Send object creation events in prefix to all attached event handlers

Usage: s3events notify-all <event> <s3Path>
--event   Event type[required] [choices: "ObjectCreated:*", "ObjectRemoved:*", "ReducedRedundancyLostObject"]
--s3Path  Example: s3://prefix

# Example
s3events notify-all ObjectCreated:* s3://bucket-name/data/2017/07/01/18

# Use --dryrun flag to see actions without sending notification
s3events notify-all ObjectCreated:* s3://bucket-name/data/2017/07/01/18 --dryrun

Send object creation events in prefix to another SNS topic

Usage: s3events notify-sns <event> <topicArn> <s3Path>
--event     Event type
                    [required] [choices: "ObjectCreated:*", "ObjectRemoved:*", "ReducedRedundancyLostObject"]
--topicArn  SNS topic ARN
--s3Path    Example: s3://prefix

# Example
# Use --suffix flag to selectively send objects
s3events notify-sns ObjectCreated:* arn:aws:sns:us-east-1:123456789:SNSTopicName s3://bucket-name/data/2017/07/01/18 --suffix .gz

Sample S3 event

• Not all the fields of the official S3 event are sent, for example: awsRegion, userIdentity, requestParameters, etc are not sent.
• Only the following fields are sent.

{
  "Records": [{
    "eventVersion": "2.0",
    "eventName": "s3:ObjectCreated:*",
    "eventTime": "2017-07-24T11:13:52.418Z",
    "eventSource": "aws:s3",
    "s3": {
      "s3SchemaVersion":"1.0",
      "bucket": {
        "name": "bucket-name",
        "arn": "arn:aws:s3:::bucket-name"
      },
      "object": {
        "key": "path/to/the/object.json",
        "size": 1487143,
        "etag": "\"bb72de632950eaf6d9ac9c828e3bbd1c\""
      }
    }
  }]
}

Usage Overview

$ s3events --help
Commands:
  notify-all <event> <s3Path>               Send event for each object in the
                                            path, to all event handlers of the
                                            bucket (SNS,SQS,Lambda).
  notify-lambda <event> <functionArn>       Send event for each object in the
  <s3Path>                                  path, to a Lambda function.
  notify-sns <event> <topicArn> <s3Path>    Send event for each object in the
                                            path, to a SNS topic.
  notify-sqs <event> <queueArn> <s3Path>    Send event for each object in the
                                            path, to a SQS queue.
  show-config <s3Bucket>                    Print notification configurations of
                                            a S3Bucket.

Options:
  --help  Show help                                                    [boolean]

Run from source

yarn
npm link --local
s3events --help

# Running tests
export TMPDIR=/private$TMPDIR # OSX only
npm test