在我的 Python API POST 请求中使用替换时 POST 失败

Question

I have a JSON dump that I am trying to post to a another application. In the payload there is a "pageGroups": "['TEST_TCIS:Oncall Schedule']", and the double quotes need to be removed to represent this output to pass the data: "pageGroups": ['TEST_TCIS:Oncall Schedule'],

I have tried to use replace but it fails. If I manually remove the double quotes out of the JSON payload it works.

Here is the code:

api_url_base = "some url"
headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer some token"
     }
data = {"abendCode": "",
        "action": "CREATE",
        "assignGroup": "TCIS-APP-SUPPORT",
        "component": "tcis",
        "description": "Test incident creation",
        "entered": "", "logicalName": "tcis",
        "pageGroups": "['TEST_TCIS:Oncall Schedule']",
        "priority": "",
        "racfId": "",
        "sendPage": "",
        "sysProdName": "tcis",
        "transactionId": "",
        "type": "SYSMAN"}

data = json.dumps(data)
data = data.replace("\"[", "[").replace("]\"", "]")
print(data)


response = requests.post("https://apistaging.csx.com/tcis-events/v1/events",
                         json=data, headers=headers)
response_url = json.loads(response.content.decode('utf-8'))
print(response_url)
print("response " + str(response))

Here is the output I am getting:

{"abendCode": "",
 "action": "CREATE",
 "assignGroup": "TCIS-APP-SUPPORT",
 "component": "tcis",
 "description": "Test incident creation",
 "entered": "",
 "logicalName": "tcis",
 "pageGroups": ['TEST_TCIS:Oncall Schedule'],
 "priority": "",
 "racfId": "",
 "sendPage": "",
 "sysProdName": "tcis",
 "transactionId": "",
 "type": "SYSMAN"}

{'traceId': 'd9dcd6ee-a0f3-170c-83e5-a52f2133cd31', 'error': {'code': 'APG400', 'message': 'The server could not process the request.'}}
response <Response [400]>
[Finished in 0.789s]

Answer 1

When you remove the double quotes from the already JSON-formatted data you get ['TEST_TCIS:Oncall Schedule'] , but this isn't valid JSON anymore. If this is supposed to be a list containing one string, the string needs to be quoted with double quotes ( " ) in JSON.

To do this properly, remove the quotes from the value first, and then convert it to a JSON string.

In fact, "removing the quotes" from "['TEST_TCIS:Oncall Schedule']" means to parse a string representation of a list into a list, for which there is ast.literal_eval .

import ast
import json

data = {"abendCode": "",
        "action": "CREATE",
        "assignGroup": "TCIS-APP-SUPPORT",
        "component": "tcis",
        "description": "Test incident creation",
        "entered": "", "logicalName": "tcis",
        "pageGroups": "['TEST_TCIS:Oncall Schedule']",
        "priority": "",
        "racfId": "",
        "sendPage": "",
        "sysProdName": "tcis",
        "transactionId": "",
        "type": "SYSMAN"}

data['pageGroups'] = ast.literal_eval(data['pageGroups'])
data = json.dumps(data)
print(data)

#response = requests.posts(..., json=data, ...)

Output (line breaks added manually):

{"abendCode": "",
 "action": "CREATE",
 "assignGroup": "TCIS-APP-SUPPORT",
 "component": "tcis",
 "description": "Test incident creation",
 "entered": "",
 "logicalName": "tcis",
 "pageGroups": ["TEST_TCIS:Oncall Schedule"],
 "priority": "",
 "racfId": "",
 "sendPage": "",
 "sysProdName": "tcis",
 "transactionId": "",
 "type": "SYSMAN"}