finlabsindia/wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-comment-endpoint.php

<?php

new WPCOM_JSON_API_Get_Comment_Endpoint( array(
	'description' => 'Get a single comment.',
	'group'       => 'comments',
	'stat'        => 'comments:1',

	'method'      => 'GET',
	'path'        => '/sites/%s/comments/%d',
	'path_labels' => array(
		'$site'       => '(int|string) Site ID or domain',
		'$comment_ID' => '(int) The comment ID'
	),

	'example_request' => 'https://public-api.wordpress.com/rest/v1/sites/en.blog.wordpress.com/comments/147564'
) );

class WPCOM_JSON_API_Get_Comment_Endpoint extends WPCOM_JSON_API_Comment_Endpoint {
	// /sites/%s/comments/%d -> $blog_id, $comment_id
	function callback( $path = '', $blog_id = 0, $comment_id = 0 ) {
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		$args = $this->query_args();

		$return = $this->get_comment( $comment_id, $args['context'] );
		if ( !$return || is_wp_error( $return ) ) {
			return $return;
		}

		/** This action is documented in json-endpoints/class.wpcom-json-api-site-settings-endpoint.php */
		do_action( 'wpcom_json_api_objects', 'comments' );

		return $return;
	}
}