Re: Using a DID Identifier in a filename?

As an aside: it would be interested to fuse did-cli and #didlang: https://youtu.be/mf0aKLvJoCw


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________________________________
From: Dmitri Zagidulin <dzagidulin@gmail.com>
Sent: Thursday, January 13, 2022 2:26:01 PM
To: public-credentials (public-credentials@w3.org) <public-credentials@w3.org>
Subject: Re: Using a DID Identifier in a filename?

Great question, Michael.

I've also been faced with this problem (storing did documents & keys for the did-cli tool), and I've found that URL-encoding the DIDs turns them into file system friendly identifiers.
I like Orie's suggestion too, though.

On Thu, Jan 13, 2022 at 3:27 PM Michael Herman (Trusted Digital Web) <mwherman@parallelspace.net<mailto:mwherman@parallelspace.net>> wrote:
I like the latter Orie. It's also a good way to avoid file system directory size related performance issues. Thk you

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________________________________
From: Orie Steele <orie@transmute.industries>
Sent: Thursday, January 13, 2022 1:23:49 PM
To: Michael Herman (Trusted Digital Web) <mwherman@parallelspace.net<mailto:mwherman@parallelspace.net>>
Cc: public-credentials (public-credentials@w3.org<mailto:public-credentials@w3.org>) <public-credentials@w3.org<mailto:public-credentials@w3.org>>
Subject: Re: Using a DID Identifier in a filename?

Yes, I have had this problem before.

and yes, you can just convert all reserved characters from the ABNF.

https://www.w3.org/TR/did-core/#did-syntax (beware of "." and "_", etc)

If you can get away with dropping the "did:method" part, your files will be more readable.

You can also consider a folder structure approach: /did/method/id.json

OS


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On Thu, Jan 13, 2022 at 2:17 PM Michael Herman (Trusted Digital Web) <mwherman@parallelspace.net<mailto:mwherman@parallelspace.net>> wrote:
Given that a colon is an invalid filename character (at least on most PCs), does any one have any thoughts about a convention for mapping a DID Identifier into a filename?

For example, using a simple mapping of a colon into a dot (period)?
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Michael Herman

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