Hello,

I am having a hard time to find the proper way to implement the UUID method on the field in my schema and my migrations.

So far I found one article on medium https://medium.com/@brucepomeroy/specifying-primary-key-values-with-ecto-57405b7ecbc5 and the doceumntation Ecto.UUID — Ecto v3.14.0.

The example that the medium article offers seems outdated and it looks like this:

@doc""" Generated migration for companies with the id field using UUID 4"""
defmodule MyApp.MyMigration do
  use Ecto.Migration
  def change do
    create table(:companies, primary_key: false) do
      add :id, :uuid, primary_key: true
      add :title, :string
      timestamps()
    end
  end
end

Then the schema looks like this

@doc """ Generated schema for company with autogenerated uuid"""
defmodule MyApp.Company do
  use Ecto.Schema
  @primary_key {:id, :binary_id, autogenerate: true}
  @derive {Phoenix.Param, key: :id}
  schema "companies" do
    field :title, :string
    timestamps()
  end
end

My question is does this work with absinthe and is UUID 4 secure enough?
Wouldn’t be better to use a more powerful uuid, composed from letters and numbers, is there a package that does this?

Thanks in advance