# 使用react-native-fetch-blob 來上傳照片

## 使用Google Cloud Storage 作為測試上傳的API

API EndPoint, POST: [https://www.googleapis.com/upload/storage/v1/b/staging.auctionmall-53ad1.appspot.com/o?uploadType=media\&name=\<your name here](https://www.googleapis.com/upload/storage/v1/b/staging.auctionmall-53ad1.appspot.com/o?uploadType=media\&name=photo)>

> AccessToken: ya29.GlzTBUbr5lyXpZV4NSRwV3X9YQsjsmC7rsgOeZrlPJ4Kan4KoR7u5X3PxPBnouJKY99gUuSpwcFX0vTo8pCtVjwMpRxtdvZM7NF2lV52ifjdAKiDpDLwakOzy\_YJvw

使用uuid作為名字欄位，讓檔名不重複

> [https://www.googleapis.com/upload/storage/v1/b/staging.auctionmall-53ad1.appspot.com/o?uploadType=media\&name=](https://www.googleapis.com/upload/storage/v1/b/staging.auctionmall-53ad1.appspot.com/o?uploadType=media\&name=photo)\<uuid>

## 使用RNFetchBlob.fetch

* method, `POST, PUT`
* url
* headers
* content
  * wrap 會包裝所在位置的檔案，在native 曾讀入，為得是不影響JS 層
* * 所在位置的檔案必須是base64 encode

```javascript
import RNFetchBlob from 'react-native-fetch-blob'
...


async fetch(){
    const result = await RNFetchBlob.fetch(
      'POST',
      `https://www.googleapis.com/upload/storage/v1/b/staging.auctionmall-53ad1.appspot.com/o?uploadType=media&name=${new Date().getTime()}`,
      {
        Authorization:
          'Bearer <AccessToken>'
      },
      RNFetchBlob.wrap(uri)
  );
}
```

常見錯誤：

![](https://3741471281-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LfNCl0-2Tz7pwP50Mpi%2F-LfNCnnzv40pXJQqOOjK%2F-LfNCp6U3oL1TYvc2jSk%2F%E8%9E%A2%E5%B9%95%E5%BF%AB%E7%85%A7%202018-06-05%20%E4%B8%8B%E5%8D%884.42.56.png?generation=1558405666201567\&alt=media)

原因：尚未 react-native link 並重裝app

查看有無上傳成功：

[https://zhang699.github.io/gcs\_site/?accessToken=\<AccessToken>](https://zhang699.github.io/gcs_site/?accessToken=ya29.GlzSBc8jMF5cB31JTQbNopFiPt94SNX0UppBIe1uyM0aAJCrzWqjIzx23Mum9nvs4QWWOIg_m8AgpeCmd41N7QHOe7jC51PUBBYTgBPTuAWQ4Vb5qeu0-tlawM_-CQ)

參考資料：

<https://github.com/joltup/react-native-fetch-blob>


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