primarykey is a replacement for UUID primary keys in your database-driven Go programs. primarykey utilises the shortuuid library to generate binary-compatible UUIDs in a more human-friendly format, allowing you to still benefit from native UUID storage in systems like PostgreSQL but while providing less obnoxious IDs to your users.

Use primarykey.ID for your ID fields in your model structs:

import "go.b8s.dev/primarykey"

type MyModel struct {
	ID primarykey.ID
}

The ID will be passed to the datastore as a regular binary UUID (eg., uuid in PostgreSQL).

You can pass primarykeys directly into queries:

db.Query("SELECT * FROM my_model WHERE id = $1", myModel.ID)

And marshal them to serializable formats like JSON automatically:

b, _ := json.Marshal(&MyModel{ID: primarykey.New()})
//=> {"ID":"KwSysDpxcBU9FNhGkn2dCf"}

There is also a public interface to encode and decode directly:

newOne := primarykey.New()
primarykey.Encode(newOne) //=> "KwSysDpxcBU9FNhGkn2dCf"

id := primarykey.Decode("KwSysDpxcBU9FNhGkn2dCf") //=> ID
id.UUID() //=> uuid.UUID
id.String() //=> "KwSysDpxcBU9FNhGkn2dCf"

This is a very standard Go project with very minimal dependencies and no required setup. Dependencies are vendored.

To run the test suite:

$ go test .