formalco/typeid

Go implementation of TypeIDs: type-safe, K-sortable, and globally unique identifiers inspired by Stripe IDs

TypeID Go

A golang implementation of TypeIDs

TypeIDs are a modern, type-safe, globally unique identifier based on the upcoming UUIDv7 standard. They provide a ton of nice properties that make them a great choice as the primary identifiers for your data in a database, APIs, and distributed systems. Read more about TypeIDs in their spec.

This particular implementation provides a go library for generating and parsing TypeIDs.

Installation

To add this library as a dependency in your go module, run:

go get go.jetpack.io/typeid

Usage

This library provides a go implementation of TypeID that allows you to define your own custom id types for added compile-time safety.

If you don't need compile-time safety, you can use the provided typeid.AnyID directly:

import (
  "go.jetpack.io/typeid"
)

func example() {
  tid, _ := typeid.WithPrefix("user")
  fmt.Println(tid)
}

If you want compile-time safety, define your own custom types with two steps:

1. Define a struct the implements the method Prefix. Prefix should return the string that should be used as the prefix for your custom type.
2. Define you own id type, by embedding typeid.TypeID[CustomPrefix]

For example to define a UserID with prefix user:

import (
  "go.jetpack.io/typeid"
)

// Define the prefix:
type UserPrefix struct {}
func (UserPrefix) Prefix() string { return "user" }

// Define UserID:
type UserID struct {
	typeid.TypeID[UserPrefix]
}

Now you can use the UserID type to generate new ids:

import (
  "go.jetpack.io/typeid"
)

func example() {
  tid, _ := typeid.New[UserID]()
  fmt.Println(tid)
}

For the full documentation, see this package's godoc.