javascript - s3 未上传文件并收到 SignatureDoesNotMatch 错误

Question

我正在尝试将图像添加到 aws 中的 s3 存储桶，但它似乎不起作用。我收到 SignatureDoesNotMatch

错误

这是我上传文件/图像的方式:

前端

const file = e.target.files[0];
const fileParts = file.name.split('.');
const fileName = fileParts[0];
const fileType = fileParts[1];
const response = axios.post('api/aws/sign_s3', { fileName, fileType );

后端

router.post('/sign_s3', async (req, res) => {
    aws.config.update({
        accessKeyId: config.aws.accessKey,
        secretAccessKey: config.aws.secretKey,
        region: 'us-west-1'
    });

    const s3 = new aws.S3(); // Create a new instance of S3
    const fileName = req.body.fileName;
    const fileType = req.body.fileType;

    const s3Params = {
        Bucket: config.aws.bucketName,
        Key: fileName,
        Expires: 500,
        ContentType: fileType,
        ACL: 'public-read'
    };

    s3.getSignedUrl('putObject', s3Params, (err, data) => {
        if (err) return res.send(err);

        const returnData = {
            signedRequest: data,
            url: `https://sim-to-do.s3.amazonaws.com/${fileName}`
        };
        res.json({ success: true, responseData: returnData });
    });

});

我得到两个网址。当我转到第一个时，我收到以下错误代码:

SignatureDoesNotMatch

错误信息

The request signature we calculated does not match the signature you provided. Check your key and signing method.

我做错了什么？将文件上传到 aws s3 的正确方法是什么？

Answer 1

从 header 中删除 Content-Type 后，我能够解决此问题。