CODEWITHSUNDEEP
amazon-web-servicesamazon-s3aws-php-sdk
Ayoub Bousetta
Ayoub Bousetta

Reputation: 316

Find the size of S3 folders using PHP SDK

I am using an S3 bucket but I can't find a way to retrieve the size of a specific folder inside my bucket.

Scénario is:

I have a doc for every user on my website /user1..../user2 where each one will have a limited amount of space (1gb per folder). I need to show on my website the space that they still have like:

Canheadd = consumed space (what I'm lookingfor) + new file size

to determine if the user still has space or not to them to upload a new file.

I'm aware that you can do a loop of objectlist but for me it's not the ideal thing because of the amount and size of each document.

Any new or direct solution is welcome.

Upvotes: 0

Views: 1256

Answers (1)

John Rotenstein
John Rotenstein

Reputation: 270144

There is no 'quick' way to obtain the amount of storage used in a particular 'folder'.

The correct way would be to call ListObjects(Prefix='folder/',...), iterate through the objects returned and sum the size of each object. Please note that each call returns a maximum of 1000 objects, so the code might need to make repeated calls to ListObjects.

If this method is too slow, you could maintain a database of all objects and their sizes and query the database when the app needs to determine the size. Use Amazon S3 Events to trigger an AWS Lambda function when objects are created/deleted to keep the database up-to-date. This is a rather complex method, so I would suggest the first method unless there is a specific reason why it is not feasible.

Upvotes: 3

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