如何在react native中将图像作为二进制文件上传

npm install react-native-image-picker --save

react-native link react-native-image-picker

import ImagePicker from 'react-native-image-picker';

const selectImage = () => {
  ImagePicker.showImagePicker({}, (response) => {
    if (response.didCancel) {
      console.log('User cancelled image picker');
    } else if (response.error) {
      console.log('ImagePicker Error: ', response.error);
    } else {
      // 在这里可以获取到选择的图像文件的路径
      const imagePath = response.path;
      // 将图像文件转换为二进制数据
      const imageData = RNFetchBlob.fs.readFile(imagePath, 'base64');
      // 在这里可以将二进制数据上传到服务器
      uploadImage(imageData);
    }
  });
};

import RNFetchBlob from 'rn-fetch-blob';

const uploadImage = (imageData) => {
  // 在这里可以使用fetch或其他网络请求库将图像二进制数据上传到服务器
  fetch('https://example.com/upload', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/octet-stream',
    },
    body: imageData,
  })
    .then((response) => response.json())
    .then((responseData) => {
      console.log('Image uploaded successfully');
      console.log(responseData);
    })
    .catch((error) => {
      console.error('Error uploading image:', error);
    });
};