大 Json 在 cypress 中解析，jsonPath 用法

Question

我是柏樹的新手，在嘗試處理 json 響應時遇到問題。 我得到帶有單位結構（樹結構）的 json，我需要從中獲取所有名稱。

我嘗試使用 jsonpath dependenc 並使用 jp.query 解析 json，但它不起作用：

 cy.request(*some request*).its('body').then((body) => {
                let units = jp.query(body, "$..[?(@.type=='PROJECT')].name");
           })

我得到obj needs to be an object Assertion error here

如何解決這個問題，或者還有其他方法可以在柏樹中解析 json？

JSON 樣品：

[
{
    "id": 2,
    "name": "Solar",
    "children": [
        {
            "id": 3,
            "name": "Earth",
            "children": [
                {
                    "id": 4,
                    "name": "Moon",
                    "type": "STREAM",
                    "active": true
                }
            ],
            "type": "PROJECT",
            "active": true
        },
        {
            "id": 5,
            "name": "Jupiter",
            "children": [
                {
                    "id": 6,
                    "name": "Io",
                    "type": "STREAM",
                    "active": true
                },
                {
                    "id": 7,
                    "name": "Ganymede",
                    "type": "STREAM",
                    "active": true
                }
            ]},
    ],
    "type": "PROGRAM",
    "active": true
},
{
    "id": 9,
    "name": "Centaurus",
    "children": [
        {
            "id": 10,
            "name": "Alpha Centauri A",
            "children": [
                {
                    "id": 818,
                    "name": "Alpha Centauri Aa-2345",
                    "type": "STREAM",
                    "active": true
                }
            ],
            "type": "PROJECT",
            "active": true
        },
        {
            "id": 11,
            "name": "Alpha Centauri B",
            "children": [
                {
                    "id": 12,
                    "name": "Alpha Centauri Bb",
                    "type": "STREAM",
                    "active": true
                }
            ],
            "type": "PROJECT",
            "active": true
        },
    ],
    "type": "PROGRAM",
    "active": true
}

]

Answer 1

在jp.query()之前添加以下兩行

body = JSON.stringify(body);
body = JSON.parse(body);

Answer 2

根據請求/響應的配置方式，您可能會遇到以下問題之一

• 響應是一個字符串
• body是一個字符串
• 沒有body

cy.request(*some request*)
  .then(response => response.json())
  .its('body')
  .then(body => {
    let units = jp.query(body, "$..[?(@.type=='PROJECT')].name");
  })

或者

cy.request(*some request*)
  .its('body')
  .then(body => body.json())
  .then(body => {
    let units = jp.query(body, "$..[?(@.type=='PROJECT')].name");
  })

或者

cy.request(*some request*)
  .then(response => response.json())
  .then(jsonObj => {
    let units = jp.query(jsonObj, "$..[?(@.type=='PROJECT')].name");
  })