Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Glyph @glyph@mastodon.social

11/17/2025, 1:10:10 AM

Public

I've got a CS problem: let's say you're writing a networked service that wants to allow clients to create posts. In a naive centralized system, you'd generate UUID4s (or maybe UUID7s, if you're nasty) on the back end. But, for idempotence, you really want the *client* to generate the IDs, so that it can safely resubmit any requests. But, clients, being clients, are untrusted, and you don't want malicious clients to be able to create ID collisions.

Is there a best practice for this scenario?

If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.social/users/glyph/statuses/115562368868068555 on your instance and quote it. (Note that quoting is not supported in Mastodon.)