从 json 响应复制数据 [Python]

Question

我有一个场景，我试图从 json 响应中提取数据，该响应是从 GET 请求获得的，然后通过更改一些值重建 json 数据，然后在重建 Z466DEEC76ECDF5FCA6D38571F632 数据后同时发送 PUT 请求（在更改后下面的idter值）是目标 json 响应。

target_json = {
  "name": "toggapp",
  "ts": [
    1234,
    3456
  ],
  "gs": [
    {
      "id": 4491,
      "con": "mno"
    },
    {
      "id": 4494,
      "con": "hkl"
    }
  ],
  "idter": 500,
  "datapart": false
}

从上面的 json 我正在尝试将idter值更改为我的自定义值并再次将其重建为 json 数据并发布新的 json 数据。 这是我尝试过的：

headers = {'Authorization': 'bearer ' + auth_token, 'Content-Type':'application/json', 'Accept':'application/json'}
tesstid =[7865, 7536, 7789]
requiredbdy = []
for key in testid:
    get_metadata_targetjson= requests.get('https://myapp.com/%s' %key, headers = headers)
    metadata=get_metadata_target.json()
    for key1 in metadata:
        requiredbdy.append(
                {
                        "metadata" : [{
                        "name": key1['name'],
                        "ts": key1['ts'],
                      "gs": key1[gs],
                      "idter": 100,  #custom value which I want to change
                     "datapart": false
                     } ]
                    }
                  )
        send_metadata_newjson= requests.put('https://myapp.com/%s' %key, headers = headers data = requiredbdy)
        print(send_metadata_newjson.status_code)

这种方法是否可行，或者我该如何进行才能实现这种情况。

Answer 1

您可以像这样使用内置的json模块

import json

my_json = """
{
  "name": "toggapp",
  "ts": [
    1234,
    3456
  ],
  "gs": [
    {
      "id": 4491,
      "con": "mno"
    },
    {
      "id": 4494,
      "con": "hkl"
    }
  ],
  "idter": 500,
  "datapart": false
}
"""

json_obj = json.loads(my_json)
json_obj['idter'] = 600
print(json.dumps(json_obj))

印刷

{"name": "toggapp", "ts": [1234, 3456], "gs": [{"id": 4491, "con": "mno"}, {"id": 4494, "con": "hkl"}], "idter": 600, "datapart": false}

Answer 2

有这个小脚本用它来查找一些非常长且令人不安的 JSON 中的条目。 不是很漂亮，记录也不是很好，但可能对您的情况有所帮助。

from RecursiveSearch import Retriever

def alter_data(json_data, key, original, newval):
    '''
    Alter *all* values of said keys
    '''
    retr = Retriever(json_data)
    for item_no, item in enumerate(retr.__track__(key)): # i.e. all 'value'
        # Pick parent objects with a last element False in the __track__() result,
        # indicating that `key` is either a dict key or a set element
        if not item[-1]: 
            parent = retr.get_parent(key, item_no)
            try:
                if parent[key] == original:
                    parent[key] = newval
            except TypeError:
                # It's a set, this is not the key you're looking for
                pass

if __name__ == '__main__':
    alter_data(notification, key='value', 
               original = '********** THIS SHOULD BE UPDATED **********',
               newval = '*UPDATED*')