评估预请求脚本时出错 [英] There was an error in evaluating the Pre-request Script

问题描述

我正在尝试通过邮寄请求脚本访问邮递员中POST请求的响应。

I'm trying to access the response of my POST request in Postman via Post Request Script.

我在下添加了这两行请求前脚本

let response = pm.response.json(); 
console.log('JSON Response: ',response );

然后，我打开Postman控制台，然后点击 Send 发出POST请求

Then, I opened up my Postman console, before hit Send to make my POST request

我一直得到

在评估请求前脚本时出错：TypeError：无法读取未定义的属性'json'

There was an error in evaluating the Pre-request Script: TypeError: Cannot read property 'json' of undefined

我是否需要启用任何功能

Do I need to enable anything on Postman?

推荐答案

在发送请求之前运行了预请求脚本。您还没有响应。

Pre-request scripts are ran before the request is sent. You do not have a response yet.

尝试将脚本放在测试 标签下，该标签会在收到回复。

Try putting your script under the Tests tab, which is ran after a response is received.

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