codestates / codestates/BongSa-Heaven

[Error Handling] #04 db연결시 에러문 발생

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Description

> ### 어떤 에러인가요?
> db 연결시 연결은되는데 에러문이 발생한다.
> ### 에러 메시지
> ```shell
> $ (node:12247) DeprecationWarning: collection.ensureIndex is deprecated. Use createIndexes instead
> ```
>
> ### 에러 핸들링 방법
> * useCreateIndex:true 를 추가해주니 오류없이 실행이 되었다.

```js
mongoose
.connect(uri, {
useNewUrlParser: true,
useUnifiedTopology: true,
useFindAndModify: false,

})
```
>
> ### 에러 핸들링을 위해 참고한 레퍼런스 링크
>[링크](https://www.codegrepper.com/code-examples/javascript/DeprecationWarning%3A+collection.ensureIndex+is+deprecated.+Use+createIndexes+instead)

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