How to use UUID for Rails API

config.generators do |g|
g.orm :active_record, primary_key_type: :uuid
rails g migration enable_uuid
class EnableUuid < ActiveRecord::Migration[6.0]end
class EnableUuid < ActiveRecord::Migration[6.0]
def change
enable_extension 'uuid-ossp'
enable_extension 'pgcrypto'
class CreateUsers < ActiveRecord::Migration[6.0]
def change
create_table :users, id: :uuid do |t|
t.string :username
create_table "devices", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
t.string "username"
t.datetime "created_at", precision: 6, null: false
t.datetime "updated_at", precision: 6, null: false




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