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https://github.com/sqids/sqids-elm
Official Elm port of Sqids. Generate short YouTube-looking IDs from numbers.
https://github.com/sqids/sqids-elm
elm elm-lang hashids id id-generator short-id short-url sqids uid unique-id unique-id-generator
Last synced: about 1 month ago
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Official Elm port of Sqids. Generate short YouTube-looking IDs from numbers.
- Host: GitHub
- URL: https://github.com/sqids/sqids-elm
- Owner: sqids
- License: mit
- Created: 2023-06-24T15:35:15.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-09-01T06:26:48.000Z (2 months ago)
- Last Synced: 2024-09-29T05:21:05.432Z (about 2 months ago)
- Topics: elm, elm-lang, hashids, id, id-generator, short-id, short-url, sqids, uid, unique-id, unique-id-generator
- Language: Elm
- Homepage: https://sqids.org/elm
- Size: 103 KB
- Stars: 11
- Watchers: 4
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# [Sqids Elm](https://sqids.org/elm)
[Sqids](https://sqids.org/elm) (_pronounced "squids"_) is a small library that lets you **generate unique IDs from numbers**. It is good for link shortening, fast & URL-safe ID generation and decoding back into numbers for quicker database lookups.
Features:
- **Encode multiple numbers** - generate short IDs from one or several non-negative numbers
- **Quick decoding** - easily decode IDs back into numbers
- **Unique IDs** - generate unique IDs by shuffling the alphabet once
- **ID padding** - provide minimum length to make IDs more uniform
- **URL safe** - auto-generated IDs do not contain common profanity
- **Randomized output** - Sequential input provides nonconsecutive IDs
- **Many implementations** - Support for [40+ programming languages](https://sqids.org/)
## 🧰 Use-cases
Good for:
- Generating IDs for public URLs (eg: link shortening)
- Generating IDs for internal systems (eg: event tracking)
- Decoding for quicker database lookups (eg: by primary keys)
Not good for:
- Sensitive data (this is not an encryption library)
- User IDs (can be decoded revealing user count)
## 🚀 Getting started
Install with
```sh
elm install sqids/sqids-elm
```
## 👩💻 Examples
Simple encode & decode:
```elm
import Sqids
Sqids.encode [ 1, 2, 3 ]
--> (Ok "86Rf07")
Sqids.decode "86Rf07"
--> (Ok [ 1, 2, 3 ])
```
If IDs are too short, you can pad them to a certain length:
```elm
import Sqids
import Sqids.Context
context : Sqids.Context.Context
context =
case
Sqids.Context.from
{ alphabet = Sqids.Context.defaultAlphabet
, minLength = 10
, blockList = Sqids.Context.defaultBlockList
}
of
Ok ok ->
ok
Err err ->
Debug.todo <| Debug.toString err
Sqids.encodeWith context [ 1, 2, 3 ]
--> (Ok "86Rf07xd4z")
Sqids.decodeWith context "86Rf07xd4z"
--> (Ok [ 1, 2, 3 ])
```
Create unique IDs by shuffling the alphabet:
```elm
import Sqids
import Sqids.Context
context : Sqids.Context.Context
context =
case
Sqids.Context.new
|> Sqids.Context.withAlphabet "k3G7QAe51FCsPW92uEOyq4Bg6Sp8YzVTmnU0liwDdHXLajZrfxNhobJIRcMvKt"
|> Sqids.Context.build
of
Ok ok ->
ok
Err err ->
Debug.todo <| Debug.toString err
Sqids.encodeWith context [ 1, 2, 3 ]
--> (Ok "XRKUdQ")
Sqids.decodeWith context "XRKUdQ"
--> (Ok [ 1, 2, 3 ])
```
## Development
You need the Elm compiler and an elm test runner (e.g. [elm-test](https://www.npmjs.com/package/elm-test) or [elm-test-rs](https://github.com/mpizenberg/elm-test-rs)).
An easy way to get started is with [node.js](https://nodejs.org) and [elm-tooling](https://elm-tooling.github.io/elm-tooling-cli/).
```sh
# Install dependencies
npm install
npx elm-tooling install
# Ensure that no unused code exists or that the documentation comments are correct
npx elm-review --fix
# Run tests in watch mode
npx elm-test-rs --watch
```
Note: Running [elm-review](https://package.elm-lang.org/packages/jfmengels/elm-review/latest/) also creates the test file `tests/DocumentationCodeSnippetTest.elm` to check the code snippets in the README.md file and also the documentation comments in source code.
### CI
@todo add the [elm-tooling-action GitHub action](https://github.com/mpizenberg/elm-tooling-action).
## License
[MIT](https://github.com/sqids/sqids-elm/blob/main/LICENSE)