add submitters api

db/migrate/20230803200825_add_uuid_to_users.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class AddUuidToUsers < ActiveRecord::Migration[7.0]
+  class MigrationUser < ApplicationRecord
+    self.table_name = 'users'
+  end
+
+  def up
+    add_column :users, :uuid, :text
+    add_index :users, :uuid, unique: true
+
+    MigrationUser.all.each do |user|
+      user.update_columns(uuid: SecureRandom.uuid)
+    end
+
+    change_column_null :users, :uuid, false
+  end
+
+  def down
+    drop_column :users, :uuid
+  end
+end