curl --location --request GET 'https://test-api.yunjishop.cn/recommend/letter/list?sentLetterId=&letterContent='
{
"total": 0,
"rows": [
{
"sentLetterId": 0,
"fromUserId": 0,
"createTime": "2019-08-24T14:15:22Z",
"letterContent": "string"
}
],
"code": 0,
"msg": "string"
}