Updated account, groups relationships routes to post data instead of get

• Updated:
- account, groups relationships routes to post data instead of get

app/controllers/api/v1/group_relationships_controller.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+class Api::V1::GroupRelationshipsController < Api::BaseController
+  before_action -> { doorkeeper_authorize! :read, :'read:groups' }
+  before_action :require_user!
+
+  def relationships
+    groups = Group.where(id: group_ids, is_archived: false).select('id')
+    # .where doesn't guarantee that our results are in the same order
+    # we requested them, so return the "right" order to the requestor.
+    @groups = groups.index_by(&:id).values_at(*group_ids).compact
+    render json: @groups, each_serializer: REST::GroupRelationshipSerializer, relationships: get_relationships
+  end
+
+  private
+
+  def get_relationships
+    GroupRelationshipsPresenter.new(@groups, current_user.account_id)
+  end
+
+  def group_ids
+    the_take = current_user.staff? ? 100 : 25
+    params[:groupIds].map(&:to_i).take(the_take)
+  end
+end