目前使用的是Postman最新版本:6.7.4(Latest)

Currently using the latest version of Postman: 6.7.4 (Latest)

我正在尝试从 JSON 响应正文中获取一个值并将其存储在环境变量中，但值用户名"应该等于我的首选用户名.

I'm trying to get a value out of a JSON response body and store it in an environment variable BUT the value 'username' should be equal to my preferred username.

通常我会提取这样的值:

Normally I would extract a value like this:

var jsonData = pm.response.json();
pm.environment.set("useridToken", jsonData.Customers[0].userid);

这会给我列表中的第一项，但我确实不希望获得列表中的第一项或第二项.例如，我希望获得 userid where username EQUAL Billy".

This would give me the first item in the list but I do not wish to obtain the first nor the second item from the list. I wish to obtain the userid where username EQUAL "Billy" for example.

身体响应的输出:

{
"Customers": [
    {
        "id": 24,
        "userid": 73063,
        "username": "BOB",
        "firstname": "BOB",
        "lastname": "LASTNAME
    },
    {
        "id": 25,
        "userid": 73139,
        "username": "Billy",
        "firstname": "Billy",
        "lastname": "lasty"
    }
   ]
}

有什么建议吗?

我记得在 SoapUI 中是这样的:

I remember in SoapUI it was like this:

$.channels[?(@.is_archived=='false')].id[0]

我想在 Postman 的 JS 中不可能做到这一点?

I guess it's not possible to do this in JS in Postman?

推荐答案

你可以使用:Array.prototype.find():

const data = {
  "Customers": [{
      "id": 24,
      "userid": 73063,
      "username": "BOB",
      "firstname": "BOB",
      "lastname": "LASTNAME"
    },
    {
      "id": 25,
      "userid": 73139,
      "username": "Billy",
      "firstname": "Billy",
      "lastname": "lasty"
    }
  ]
}

const user = data.Customers.find(u => u.username === 'Billy')
const userid = user ? user.userid : 'not found'

console.log(user)
console.log(userid)