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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234
한 권으로 끝내는 Node & Express
NOTE
_
뭔가 만들 때는
POST
, 뭔가 업데이트할 때는
PUT
을 쓰는 게 표준 관습입니다. 이들 동사의 영어
의미만으로는 이 차이점을 알 수 없으므로 경로를 통해 두 조작을 구별하는 것도 생각해볼 만합니다.
이 책에서는 이 함수들 중 명소를 추가하고, 가져오고, 나열하는 세 가지만 만들겠습니다. 책
소스를 내려받으면 모든 프로그램을 볼 수 있습니다.
15.3.
API
에러 보고
HTTP
API
의 에러 보고는 보통
HTTP
상태 코드를 통해 이뤄집니다. 요청이
200
(성공)을 반
환하면 클라이언트 요청이 성공했음을 알게 됩니다. 요청이
500
(내부 서버 오류)을 반환하면
요청이 실패한 겁니다. 하지만 대부분의 애플리케이션에서 모든 것을 단순히 ‘성공’이나 ‘실패’
로 분류할 수는 없습니다. 그럴 필요가 없을 수도 있고요. 예를 들어
ID
로 뭔가 요청했는데, 그
런
ID
가 존재하지 않는다면? 서버 에러는 아닙니다. 클라이언트에서 존재하지 않는 것을 요청
했을 뿐입니다. 일반적으로 에러는 다음 카테고리로 나눌 수 있습니다.
| 심각한 에러
|
서버가 불안정하거나 알 수 없는 상태일 때 일어납니다. 보통 이런 에러는 예외 처리에 실패했
을 때 발생합니다. 심각한 에러에서 복구하는 안전한 방법은 서버 재시작뿐입니다.
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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.