백엔드 기본 구조 생성하기
![](http://t1.daumcdn.net/tistory_admin/static/images/no-image-v1.png)
![](http://t1.daumcdn.net/tistory_admin/static/images/no-image-v1.png)
![](http://t1.daumcdn.net/tistory_admin/static/images/no-image-v1.png)
![](http://t1.daumcdn.net/tistory_admin/static/images/no-image-v1.png)
express.static()
![](http://t1.daumcdn.net/tistory_admin/static/images/no-image-v1.png)
![](https://blog.kakaocdn.net/dn/SESUN/btsplbYuXXP/uO5kKRKwUjDvnGkA7efyaK/img.png)
CORS
![](https://blog.kakaocdn.net/dn/b6GX82/btspmhcQHCY/gAwIYHWZOgciJHST6ASOMk/img.png)
![](https://blog.kakaocdn.net/dn/p07x1/btspl72GcTD/6cpzYC1G3kExf40caI2c1K/img.png)
![](https://blog.kakaocdn.net/dn/bNP4bt/btsplNpxENz/xK9u7MBZ8PWLTexHPkGOU1/img.png)
![](https://blog.kakaocdn.net/dn/bd8evV/btsplakZv21/ZUTzMwQ7qV0Ol4j7K8HbVK/img.png)
![](https://blog.kakaocdn.net/dn/kFQn6/btsplRy3Zop/JVGUZMCIWI9mkgkQw2ElQK/img.png)
Express.json()
![](https://blog.kakaocdn.net/dn/zzMiq/btsplbRLJLZ/3Xu85PJm2kwNUF4RKwE5d0/img.png)
MongoDB 사용하기
![](https://blog.kakaocdn.net/dn/ri5gm/btsplPH2ZFs/29wtWoJHZaxqrBzVffLn1k/img.png)
![](https://blog.kakaocdn.net/dn/ci5POt/btspmWM6WEA/qkzgbCsOEsvfvJE50GiKzk/img.png)
Mongoose에 대해서
![](https://blog.kakaocdn.net/dn/beZTyf/btspFMPDngh/MUsYX2h0sQbkcNNKWTYbTK/img.png)
![](https://blog.kakaocdn.net/dn/bWvrXq/btsplRshbsM/K88wvna4pioLzjhYPpKMgK/img.png)
![](https://blog.kakaocdn.net/dn/prGsd/btsppIHR8WF/RzAim3dN0MtqkwaZGR1dS1/img.png)
![](https://blog.kakaocdn.net/dn/bRnP5d/btspk8go52D/ycItNtJkRhD5f6mskrkkdK/img.png)
Model 및 Schema 생성하기
![](https://blog.kakaocdn.net/dn/cVakZw/btspFMoy6KG/WuIVSaGvCJG1AEk6Uj01V1/img.png)
![](https://blog.kakaocdn.net/dn/crYTJV/btspFMvkBQf/Sc2W6d4xjtukWjKeiZ24YK/img.png)
![](https://blog.kakaocdn.net/dn/7AR8I/btspoleMllW/0JTvEbKDkRfPeCDGLgpoDk/img.png)
Express에서 에러 처리하기
![](https://blog.kakaocdn.net/dn/dFW4ua/btspmhqoniP/rjNk0HkB9kvxnBFEWWkaAK/img.png)
원래는 위에처럼 에러처리를 해주면 되지만, 비동기 요청으로 인한 에러를 이렇게 처리해주면 에러 처리기에서
저 에러 메세지를 받지 못하기 때문에 서버가 Crash 되어 버립니다.
![](https://blog.kakaocdn.net/dn/M9GkK/btsplNb2lg0/gtWTGL0SfhkC01rDbqOz7K/img.png)
![](https://blog.kakaocdn.net/dn/IKqmv/btspl7BCwMj/baoUmkEa89AmlOhCIm3ctK/img.png)
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