import FileUploader from 'react-native-file-uploader'

const settings = {
  uri,
  uploadUrl,
  method, // default to 'POST'
  fileName, // default to 'yyyyMMddhhmmss.xxx'
  fieldName, // default to 'file'
  contentType, // default to 'application/octet-stream'
  data: {
    // extra fields to send in the multipart payload
  }
};

FileUploader.upload(settings, (err, res) => {
  // handle result
}, (sent, expectedToSend) => {
  // handle progress
});