rfc4122bis
Hashids.java
rfc4122bis | Hashids.java | |
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Makefile | Java | |
GNU General Public License v3.0 or later | MIT License |
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rfc4122bis
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I need some help to adapt my UUID/GUID library (UUIDNext) to generate the best UUIDs for PostgreSQL, MySQL and other DBMS
I've created a library, UUIDNext, to generate next generation UUID/GUID based on the future RFC that will add new versions of UUID better suited for database use. UUID version 7 are guaranteed to be sorted contrary to traditional GUIDs (a.k.a UUID V4) that are random.
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Short, friendly base32 slugs from timestamps
One simple workaround could be to use something like UUID version 7[0], using just the first part that encodes the time, and dropping the rest.
[0]: https://github.com/ietf-wg-uuidrev/rfc4122bis
Hashids.java
- Hashids: Generate short unique ids from integers
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Auto Generate Sequential UIID
You basically want Hashids but sequential? Why not simple convert a base 10 (0-9) number to hex? (0-F)
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Features I'd Like in PostgreSQL
I found hashids [1] to be a great compromise between integer ids in the database and copyable non-enumerable strings on the client.
[1] https://hashids.org/
- Short, friendly base32 slugs from timestamps
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We Chose NanoIDs for PlanetScale’s API
I wonder how this might compare to just storing regular autoincrementing ints in the database, and converting to/from hashids (https://hashids.org/) at the edge. It eliminates the collision concern and stores more compactly at the cost of a tiny amount of encode/decode when processing requests. You’d want to push it down as close to the database layer as possible to avoid inadvertent int ID leaks; I added native hashids support to clickhouse but I’m not sure what other database support might entail.
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How can I generate truly unique slugs?
Since hashids are not really hashes and are not secure at all this is not even achieved. Hashids can be easily decoded without the salt by a simple brute-force attack described by the authors of hashid themselves right on their website: https://hashids.org/
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How to handle id-based routes with UUID
You don't necessarily need to use UUIDs. You could use something like Hashids to generate random strings from your sequential IDs in a reversible way, so that users can't predict what their values will be, but you can decode them as needed.
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All of my database models have id replaced with UUID4s. Is there any risk to using these in URLs?
You should not use UUIDv4 as a primary key. You can use normal int values and then use hashids to make them safe for URL. UUIDv7 might be good to use as well once they are more widely supported as well.
- What’s Django’s argument for using 64-bit int as default pk over uuid. Can anyone point me to something I can read?
- Library for generating string IDs from number IDs
What are some alternatives?
UUIDNext - A fast and modern .NET library to generate UUID/GUID that are either sequential and database friendly (versions 7), name based (versions 5) or random (version 4).
BLAKE3 - the official Rust and C implementations of the BLAKE3 cryptographic hash function
shortuuid - A generator library for concise, unambiguous and URL-safe UUIDs.
uuid7 - UUID version 7, which are time-sortable (following the Peabody RFC4122 draft)
Guava - Google core libraries for Java
JGit - JGit project repository (jgit)
Embulk - Embulk: Pluggable Bulk Data Loader.
JADE - a pug implementation written in Java (formerly known as jade)
CRaSH - The shell for the Java Platform
cactoos - Object-Oriented Java primitives, as an alternative to Google Guava and Apache Commons
fswatch - Java lib for monitoring directories or individual files via java.nio.file.WatchService
minio-java - MinIO Client SDK for Java