React native 使用axios从GridFS下载图像(React Native)

React native 使用axios从GridFS下载图像(React Native),react-native,gridfs,React Native,Gridfs,我的NodeJS服务器中有以下功能,可从mongoDB GridFS文件存储中提取图像: router.get("/photo", (req, res) => { const { id } = req.query; const file = gfs .find({ _id: ObjectId(id) }) .toArray((err, files) => { if (!

我的NodeJS服务器中有以下功能,可从mongoDB GridFS文件存储中提取图像:

router.get("/photo", (req, res) => {

        const { id } = req.query;

        const file = gfs
            .find({ _id: ObjectId(id) })
            .toArray((err, files) => {
                if (!files || files.length === 0) {
                    return res.status(404).json({
                        err: "no files exist"
                    });
                }
                gfs.openDownloadStream(ObjectId(id)).pipe(res);
            });
    });
它在邮递员身上完美地工作,图像显示在上面。然而,我试图在我的react原生应用程序中下载并向用户显示,但我从服务器获得的所有信息都是一个空的数组缓冲区:

const getAvatar = dispatch => (customer) => {

    console.log(customer.avatar)
    dispatch({ type: "FETCH_AVATAR" });
    try {
        // axios instance
        server.get(`/api/customer/photo?id=${customer.avatar}`, { responseType: 'arraybuffer' }).
        then(res => {
            console.log(res.data);
        })
        //console.log(response);


    } catch (error) {
        const { response: { data } } = error;
        dispatch({ type: 'FETCH_AVATAR_REJECTED', payload: data });
    }

}
知道我做错了什么吗