如何使用python访问S3存储桶中的新添加文件

Question

I am new to aws I access files in S3 using python I need to access newly added files in the bucket. Instead of accessing every data present in the bucket. Can anyone help me to reslove this issue?. Thank you

Answer 1

Take a look at S3 event notifications . You can have all new files be sent to an SQS queue and have your python program read from the queue to get new files. There is not a way to query S3 for new files. Or if you could create a lambda function to operate on new files as well depending on what you need to do with new files.

Answer 2

You can create a lambda with your business logic in python and finally you create an event in s3:

1. Enter S3 bucket
2. Select "Properties" tab
3. Advance settign section -> Events

4. New Event:

Important: You must have the lambda created.

Diagram: