Short Unique IDs in Scala

What is Sqids?

Sqids (pronounced "squids") is an open-source library that lets you generate short unique identifiers from numbers. These IDs are URL-safe, can encode several numbers, and do not contain common profanity words. Read more .

This is what they look like:

https://example.com/Lqj8a0

Scala

Quick encode & decode example:

val sqids = Sqids.default
val id = sqids.encodeUnsafeString(1, 2, 3) // "86Rf07"
val numbers = sqids.decode(id) // List(1, 2, 3)

If IDs are too short, you can pad them to a certain length:

Sqids
  .withMinLength(10)
  .foreach { sqids =>
    val id = sqids.encodeUnsafeString(1, 2, 3) // "86Rf07xd4z"
    val numbers = sqids.decode(id) // List(1, 2, 3)
  }

Create unique IDs by shuffling the alphabet:

Alphabet("k3G7QAe51FCsPW92uEOyq4Bg6Sp8YzVTmnU0liwDdHXLajZrfxNhobJIRcMvKt")
  .flatMap(Sqids.forAlphabet)
  .foreach { sqids =>
    val id = sqids.encodeUnsafeString(1, 2, 3) // "XRKUdQ"
    val numbers = sqids.decode(id) // List(1, 2, 3)
  }