React Native + Firebase存储:base64和blob无法正常工作 [英] React Native + Firebase Storage: base64 and blob not working

问题描述

我正试图将我的图像文件编码为base64或blob，但是它们都不起作用.我也在使用它: https://github.com/react-community /react-native-image-picker 来管理图像选择器.

I'm trying to use to either encode my image file as base64 or blob, but neither of them are working. I'm also using this: https://github.com/react-community/react-native-image-picker to manage the image picker.

尝试1:使用图像选择器的.data方法，该方法应该返回base64字符串

Try 1: Using Image picker's .data method, which is supposed to return a base64 string

const blah = uuid.v4();
firebase
  .storage()
  .ref('images')
  .child(`${blah}.jpg`)
  .putString(file.data, 'base64', { contentType: 'image/jpeg' })

但这会抛出:Firebase Storage: String does not match format 'base64': Invalid character found

尝试2:使用> https://github.com/wkh237/react- native-fetch-blob

      const uri = file.uri;
      const uploadUri = Platform.OS === 'ios' ? uri.replace('file://', '') : uri
      data = RNFetchBlob.fs.readFile(uploadUri, 'base64')
      blob = RNFetchBlob.polyfill.Blob.build(data, { type: 'application/octet-stream;BASE64' })
      const uniqueId = uuid.v4();
      const firebaseRef = firebase.storage().ref('images').child(`${uniqueId}.jpg`)
      return Observable.fromPromise(firebaseRef.put(blob, { contentType: 'application/octet-stream;BASE64' }));
    })

但是，它返回了:Firebase Storage: Invalid argument in put at index 0: Expected Blob or File.

However, it is returning: Firebase Storage: Invalid argument inputat index 0: Expected Blob or File.

尝试3:使用> https://github.com/wkh237/react- native-fetch-blob

      const uri = file.uri;
      const uploadUri = Platform.OS === 'ios' ? uri.replace('file://', '') : uri
      data = RNFetchBlob.fs.readFile(uploadUri, 'base64')
      const uniqueId = uuid.v4();
      const firebaseRef = firebase.storage().ref('images').child(`${uniqueId}.jpg`)
      const metadata= {
        contentType: 'image/jpeg',
      };
      firebaseRef.putString(data, 'base64', metadata);

但这又抛出了:Firebase Storage: String does not match format 'base64': Invalid character found

有人知道我在做什么吗?

Does anyone know what I'm doing wrong?

推荐答案

在我最近使用5.5.6版本的那天，我更新到了6.2.0版本并遇到了同样的问题.

Back in the day I used version 5.5.6 recently I updated to version 6.2.0 and ran to the same issue.

const uri = Platform.OS === 'ios' ? response.uri.replace('file://', '') : response.uri
const imageRef = storage().ref('images/').child("blah")
await imageRef.put(uri)
const imageUrl = await imageRef.getDownloadURL()

我刚刚将.put更改为.putFile，然后一切又恢复正常

I just changed .put to .putFile and everything worked again

这篇关于React Native + Firebase存储:base64和blob无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！