**My problem**  

I want to get a list of members through the Mailchimp marketing API in Nodejs. I am using the [mailchimp\_marketing npm package](https://www.npmjs.com/package/@mailchimp/mailchimp_marketing).

**What I tried**  

For example I want to only get the VIPs in my Mailchimp list. Following their [API reference](https://mailchimp.com/developer/marketing/api/list-members/list-members-info/) and this [stackoverflow answer](https://stackoverflow.com/a/64140581/13664713) I tried this:

```js
const members = await mailchimpClient.lists.getListMembersInfo(`${list_id}`, {
    vip_only: true
});

```

But the response gives also members who aren't VIPs, so it totally ignores the query parameter.  

I also tried other parameters like *since\_timestamp\_opt*, *before\_last\_changed* , etc. But those get ignored aswell.  

For some way only `count=1000` works fine.

I also tried other ways like:

```js
const members = await mailchimpClient.lists.getListMembersInfo("f8b3bf6b23?vip_only=true");
const members = await mailchimpClient.lists.getListMembersInfo("f8b3bf6b23/members?vip_only=true");

```

But does not give the expected result.

Anyone knows what the right way is to pass the parameters? Or should I just do it client-side?