April 2016
Beginner to intermediate
389 pages
9h 8m
Korean
Content preview from 한 권으로 끝내는 Node & Express: 웹사이트 구축을 위한 서버 사이드 자바스크립트
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323
19
장
-
타사 API와의 통합
function refreshDealerCacheForever
(){
dealerCache
.
refresh
(
function
(){
//
업데이트
주기가
끝나면
스스로를
호출
setTimeout
(
refreshDealerCacheForever
,
dealerCache
.
refreshInterval
);
});
}
NOTE
_
refreshDealerCacheForever
를
dealerCache
의 메서드로 만들 수도 있지만, 자바스크립트
가
this
객체를 처리하는 방법이 좀 변덕스러워서 그렇게 하지 않았습니다. 특히 함수(메서드가 아니라)를
호출할 때
this
가 호출 객체의 콘텍스트에 묶이지 않는 것은 좀 의아합니다.
이제 실제 실행해볼 차례군요. 앱을 처음 실행하면 캐시가 존재하지 않을 테니 빈 캐시를 만들
고
dealerCache
.
refreshForever
를 실행합니다.
//
캐시가
없다면
빈
캐시를
만들어서
404
에러를
막습니다
.
if
(!
fs
.
existsSync
(
dealerCache
.
jsonFile
))
fs
.
writeFileSync
(
JSON
.
stringify
([]));
//
캐시
업데이트
시작
refreshDealerCacheForever
();
캐시 파일 업데이트는 데이터베이스가 모든 판매자를 반환했거나, 지오코딩이 필요한 판매자
의
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.