ERROR: xmlobj.CommonPrefixes.forEach is not a function

minio version：^7.0.17

found this problem when I used the listobjects API

1、When the third parameter recursive of listobjects is set to true, the result returned is correct

// code
const bucketName = params.bucketName || '';
const prefix = params.prefix || '';
const stream = app.minio.listObjects(bucketName, prefix, true);
return new Promise(resolve => {
    const res = [];
    stream.on('data', obj => {
        res.push(obj);
    });
    stream.on('end', () => {
        resolve({
            code: 0,
            data: res,
        });
    });
    stream.on('error', err => {
        resolve({
            code: 1,
            msg: err,
        });
    });
});

// result
[
    {
        "name":"child/aa.txt",
        "lastModified":"2020-12-01T04:04:18.148Z",
        "etag":"166bcae2d953f92b1fa3b40d218d2a38",
        "size":57
    },
    {
        "name":"bb.jpg",
        "lastModified":"2020-12-01T02:39:41.026Z",
        "etag":"ba02b3771a3ceeaf1d4925c62d05780b",
        "size":8730
    },
    {
        "name":"cc.jpg",
        "lastModified":"2020-12-01T02:40:21.905Z",
        "etag":"aed69181e64900aeaaf4b18798c7bcc4",
        "size":10891
    }
]

2、However, when the third parameter recursive is set to false, an error is reported

// code
app.minio.listObjects(bucketName, prefix, false);
......

// result
ERROR: xmlobj.CommonPrefixes.forEach is not a function

I entered the wrong node_ modules\minio\dist\main\xml- parsers.js:381 : 27 files, printing xmlobj.CommonPrefixes The results are as follows：

// Error source code
if (xmlobj.CommonPrefixes) {
    console.log('xmlobj.CommonPrefixes', xmlobj.CommonPrefixes);
    xmlobj.CommonPrefixes.forEach(function (commonPrefix) {
        var prefix = commonPrefix.Prefix[0];
        var size = 0;
        result.objects.push({
            prefix,
            size
        });
    });
}

// console.log result
xmlobj.CommonPrefixes { Prefix: 'child/' }

[raynaldilalang]

@mitni455 i just had the same issue, and avoided the error using listObjectsV2

[ebozduman]

Thank you @mitni455 for the information. Thank you @prakashsvmx for replying. This fix and quite some API support changes are on the way to be released. Please stay tuned.