AWS Lambda使S3上载的CloudFront失效 [英] aws Lambda to invalidate CloudFront on S3 upload

问题描述

我同时上传了10-50个文件. Lambda会为每个更新的文件触发一个事件(如果文件大小已更改).

I have 10-50 files upload at the same time. Lambda triggers an event for every updated file (if file size changed).

因此，我不想在上传结束时一次运行通配符*，而不是一次使50x无效.

So instead of invalidating one by one 50x I'd like to run the wildcard "*" character once at the end of the upload.

任何人都可以阐明如何实现这一目标?谢谢！

Anyone can shed some light on how to accomplish that? Thanks!

推荐答案

如果我正确理解了您的问题，则您的lambda函数会知道CloudFront是否应该使之无效，但不知道什么时候该准确发生.

If I understood your question correctly, your lambda function knows whether CloudFront should invalidate or not but does not know when should that happen exactly.

在这种情况下，您可以返回布尔值标志(例如mustInvalidate)作为响应的一部分，以指示应创建一个无效请求.然后，您的应用程序(或任何发起批处理上传请求的程序)可以在上传批处理完成后立即创建/target-location/*无效请求.

In that case, you could return a boolean flag (e.g., mustInvalidate) as part of the response to indicate that an invalidation request should be created. Then, your application (or whatever initiated the batch upload request) can create the /target-location/* invalidation request as soon as the upload batch completes.

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