feat: Portal endpoint (#4633)

app/controllers/api/v1/accounts/portals_controller.rb

@@ -0,0 +1,38 @@
+class Api::V1::Accounts::PortalsController < Api::V1::Accounts::BaseController
+  before_action :fetch_portal, except: [:index, :create]
+
+  def index
+    @portals = Current.account.portals
+  end
+
+  def show; end
+
+  def create
+    @portal = Current.account.portals.create!(portal_params)
+  end
+
+  def update
+    @portal.update!(portal_params)
+  end
+
+  def destroy
+    @portal.destroy!
+    head :ok
+  end
+
+  private
+
+  def fetch_portal
+    @portal = Current.account.portals.find_by(slug: permitted_params[:id])
+  end
+
+  def permitted_params
+    params.permit(:id)
+  end
+
+  def portal_params
+    params.require(:portal).permit(
+      :account_id, :color, :custom_domain, :header_text, :homepage_link, :name, :page_title, :slug, :archived
+    )
+  end
+end