WP_REST_Users_Controller::get_item_permissions_check() WordPress Method

	public function get_item_permissions_check( $request ) {
		$user = $this->get_user( $request['id'] );
		if ( is_wp_error( $user ) ) {
			return $user;
		}

		$types = get_post_types( array( 'show_in_rest' => true ), 'names' );

		if ( get_current_user_id() === $user->ID ) {
			return true;
		}

		if ( 'edit' === $request['context'] && ! current_user_can( 'list_users' ) ) {
			return new WP_Error(
				'rest_user_cannot_view',
				__( 'Sorry, you are not allowed to list users.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		} elseif ( ! count_user_posts( $user->ID, $types ) && ! current_user_can( 'edit_user', $user->ID ) && ! current_user_can( 'list_users' ) ) {
			return new WP_Error(
				'rest_user_cannot_view',
				__( 'Sorry, you are not allowed to list users.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		}

		return true;
	}