查询直播间消息（第一次）
# Check the status of the live broadcasting room
**Brief description**：
- Live Room news, including barrage, chat, entry and exit, gifts
**request URL**
- {APIURL}/dy/live/im_fetch_first
**Request mode**
- POST
**Request header Headers**
- Content-Type：multipart/form-data
- Access-Token：login Interface return
**parameter**
|Parameter name | required | type | description
|-|-|-|-|
|wcid|is|string|conversation ID
|mix_id|is|String|id
|page_size|no|int|page
**Request parameter example**
```
{
"room_ids": "string", // Multiple commas separated
"wcid": "string"
}
```
**Successful return example**
```
{
"msg": "success",
"code": 0,
"data":{"r1":true,"r2":false
}
}
```
**Error return example**
```
{
"msg": "fail",
"code": -1,
"data": null
}
```
**Return data**：
|Parameter name | type | description|
|-|-|-|
|code|string|0 Success, -1 failed|
|msg|string|feedback information|
|data|