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我正在尝试在创建 firebase 用户时上传用户头像，在此处创建用户后

auth.createUserWithEmailAndPassword(this.state.email,this.state.password)
    .then(credential=>{
     const photoUrl = this.handleUpload(credential)
})

我创建了一个句柄上传函数，它在下面返回一个 photoUrl

handleUpload=(credential)=>{
    const {avatar} = this.state;
    const upload = storage.ref(`avatars/${credential.user.uid}`).put(avatar)
    upload.on('state_changed',(snapshot)=>{
      let progress = (snapshot.bytesTransferred/snapshot.totalBytes)*100;
      console.log('Upload is ' + progress + '% done');
    },(e)=>{
      console.log(e)
    },()=>{
      return storage.ref("avatars").child(`${credential.user.uid}`).getDownloadURL()
    })
  }

并且filepond UI实例在UI中声明如下

const { ....,avatar,....} = this.state;

<FilePond 
  ref={ref => this.pond = ref}
  files={avatar}
  fileValidateTypeLabelExpectedTypes="Invalid File Type"
  imagePreviewMaxFileSize='3MB'
  imageValidateSizeMinWidth="400"
  imageValidateSizeMaxWidth="1024"            
  imageValidateSizeMinHeight="400"
  imageValidateSizeMaxHeight="1024"
  imagePreviewTransparencyIndicator="green"
  maxFileSize='3MB'
  labelIdle={'Drag & Drop your Profile Picture or <span class="filepond--label-action"> Browse </span>'}
  acceptedFileTypes={['image/png', 'image/jpeg']}
  onupdatefiles={fileItems => {
    this.setState({
      avatar: fileItems.map(fileItem => fileItem.file)
    });
  }}              
/>

但我得到了预期的 blob 或文件错误......我该如何解决这个问题？

4

1 回答 1

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它有助于在将avatar值发送到存储之前记录值包含的内容。您的存储告诉您它不是 aBlob或File.

在这种情况下，它看起来像avatar一个数组。

this.setState({
    avatar: fileItems.map(fileItem => fileItem.file) // this is an array
});

因此，您可以选择数组中的第一个元素，而不是使用avatar整个数组avatar[0]

const upload = storage.ref(`avatars/${credential.user.uid}`).put(avatar[0])
于 2019-06-03T08:48:44.340 回答