AWS Lambda 在 S3 存储桶中创建文件夹

问题描述：

我有一个 Lambda，它会在文件上传到 S3-A 存储桶并将这些文件移动到另一个存储桶 S3-B 时运行.挑战是我需要在 S3-B 存储桶中创建一个文件夹，其中包含上传文件的相应日期，并将文件移动到该文件夹中.任何帮助或想法都非常感谢.可能听起来很混乱，请随时提出问题.谢谢！

I have a Lambda that runs when files are uploaded to S3-A bucket and moves those files to another bucket S3-B. The challenge is that I need create a folder inside S3-B bucket with a corresponding date of uploaded files and move the files to the folder. Any help or ideas are greatly apprecited. It might sound confusing so feel free to ask questions.Thank you!

答

这是一个可以由 Amazon S3 事件触发并将对象移动到另一个存储桶的 Lambda 函数:

Here's a Lambda function that can be triggered by an Amazon S3 Event and move the object to another bucket:

import json
import urllib
from datetime import date
import boto3

DEST_BUCKET = 'bucket-b'

def lambda_handler(event, context):
    
    s3_client = boto3.client('s3')
    
    bucket = event['Records'][0]['s3']['bucket']['name']
    key = urllib.parse.unquote_plus(event['Records'][0]['s3']['object']['key'])


    dest_key = str(date.today()) + '/' + key
    
    s3_client.copy_object(
        Bucket=DEST_BUCKET,
        Key=dest_key,
        CopySource=f'{bucket}/{key}'
        )

唯一需要考虑的是时区.Lambda 函数以 UTC 运行，您的时区中的日期可能略有不同，因此您可能需要相应地调整时间.

The only thing to consider is timezones. The Lambda function runs in UTC and you might be expecting a slightly different date in your timezone, so you might need to adjust the time accordingly.

AWS Lambda 在 S3 存储桶中创建文件夹

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