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Azure Blob Storage - List Blobs (V2) - filter results

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Posted on 1 Feb 2022 05:30:50 by kubalaml

Does anyone know how I can filter the results from the action " List Blobs (V2)". There is something called a "Paging Marker" that says "A marker that identifies the portion of the list to be returned with the list operation" whatever that means. I tried entering just a number thinking it would return the top results, but got an error. Tried an ODATA query with no luck either. How do I use this field?

I could just run this action, and do a filter afterwards, but that seems wasteful and I'm assuming it will only bring in so many files up to a threshold. Is it guaranteed to return the most recently modified first?

Thanks!

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JohnLEdwards 2 on 26 Jan 2024 at 18:08:21

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Re: Azure Blob Storage - List Blobs (V2) - filter results

"Hope this helps a bit!"

Nope! And the linked page, as with most Microsoft pages, is vague to the point of uselessness, written for someone that knows enough to not need to look it up. Microsoft help pages are written for experts for some reason.

I have a blob folder with a set of blobs in it, zero to n. I want to take exactly one of them and process it. I want to copy it to a specific file name. I can process the entire list and have every single blob numbers 2 through n crash against the destination file name with the no-overwrite option, and return an error more or less every time.

Here's the question -- how do I process exactly 1 item from the blob list? The tool insists that I process all of them. I just want the first one, don't much care which one it is.
Martin CP Mueller 2 on 14 Nov 2022 at 15:40:48

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Re: Azure Blob Storage - List Blobs (V2) - filter results

Hi @Ichinova ,

first of all you can checkout the function here
You can do pagination, but you have to specify the page size. Overall List size can be 5000.
Depending on your filter criteria you can already specify the filter on the list blob, but its limited to a prefix.

Hope this helps a bit!
Regards
Martin