Question 341830 in Amazon Web Sevices Question posted in
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Amazon web services – I'm unable to find a type for aws s3 event notifications in python

I am working in python and have a code that receives s3 event notifications via an SQS. I’m trying to find existing type support (for type hints and parsing using pydantic) for events such as s3:ObjectCreated – I would assume something must exist in libraries such as types_aiobotocore_s3, but I’m unable to locate a type that describes these events.
I don’t want to write it myself, because it should probably already exist.

Can anyone please assist?

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2

Answers


  1. 0

    Here’s a sample S3 event. This one came from the AWS Lambda ‘Test’ function:

    {
  "Records": [
    {
      "eventVersion": "2.0",
      "eventSource": "aws:s3",
      "awsRegion": "us-east-1",
      "eventTime": "1970-01-01T00:00:00.000Z",
      "eventName": "ObjectCreated:Put",
      "userIdentity": {
        "principalId": "EXAMPLE"
      },
      "requestParameters": {
        "sourceIPAddress": "127.0.0.1"
      },
      "responseElements": {
        "x-amz-request-id": "EXAMPLE123456789",
        "x-amz-id-2": "EXAMPLE123/5678abcdefghijklambdaisawesome/mnopqrstuvwxyzABCDEFGH"
      },
      "s3": {
        "s3SchemaVersion": "1.0",
        "configurationId": "testConfigRule",
        "bucket": {
          "name": "example-bucket",
          "ownerIdentity": {
            "principalId": "EXAMPLE"
          },
          "arn": "arn:aws:s3:::example-bucket"
        },
        "object": {
          "key": "test%2Fkey",
          "size": 1024,
          "eTag": "0123456789abcdef0123456789abcdef",
          "sequencer": "0A1B2C3D4E5F678901"
        }
      }
    }
  ]
}

    It’s not particularly complex. Almost everything is a string.

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  2. 0

    The message sent from S3 to Lambda is not generated by Boto3, so those aibotocore typings would not be relevant here. I suggest trying the S3Event type in this aws-lambda-typings library.

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