v2_spa_index_spec.rb

    let(:index_req) do
      {
        data: {
          appContentScope: {
            id: app_scope.id,
            fields: ['name'],
            include: {
              categoryAppContentScopes: {
                filter: { appContentScopeId: { fromContext: 'appContentScope.id' } },
                sort: [{ field: 'position', direction: 'asc' }],
                fields: %w[appContentScopeId categoryId position],
                include: {
                  category: {
                    id: { fromContext: 'categoryAppContentScope.categoryId' },
                    fields: ['name'],
                    include: {
                      deckCategories: {
                        filter: { categoryId: { fromContext: 'category.id' } },
                        sort: [{ field: 'position', direction: 'asc' }],
                        fields: %w[position deckId categoryId deckType],
                        include: {
                          deck: {
                            id: { fromContext: 'deckCategory.deckId' },
                            if: { attribute: { fromContext: 'deckCategory.deckType' },
                                  matches: 'Deck' },
                            fields: ['name']
                          },
                          quizDeck: {
                            id: { fromContext: 'deckCategory.deckId' },
                            if: { attribute: { fromContext: 'deckCategory.deckType' },
                                  matches: 'QuizDeck' },
                            fields: ['name']
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    end