我一直在使用 Python 3.10.10 上的 pytest 进行 API 测试，并在一个 post 请求时遇到了问题。以下是我目前的代码：
```python
import requests as req
api = '某个API'
header = {
    'Apikey': '某个令牌',
    'Content-Type': 'application/json'
}
payload = {
    "title": "标题",
    "description": "<p>描述</p>",
    "column_id": 12345,
    "lane_id": 1234
}
URL = api + '/cards'
card_id = 0
def test_get_card():
    x = req.get(
        URL,
        headers=header,
        params={'cards_id': 123456}
    )
    assert x.status_code == 200
def test_create_card():
    x = req.post(
        URL,
        headers=header,
        data=payload
    ).json()
    print(x)
    assert x.status_code == 200

<details>
<summary>英文:</summary>
I&#39;ve been working on making API tests with pytest on Python 3.10.10 and I have stumbled on an issue with a post request. Here is the code I currently have:

assert x.status_code == 200

print(x)
assert x.status_code == 200

The first test is a success!
The second doe returns 400 and `Please provide a column_id for the new card with reference CCR or have it copied from an existing card by using card_properties_to_copy.`
If I run the same request in `Insomnia` it returns 200. I can't figure out why it fails.
Any help would me much appreciated!
</details>
# 答案1
**得分**: 1
根据您的反馈，这是您遇到的问题。从请求文档[https://requests.readthedocs.io/en/latest/user/quickstart/#passing-parameters-in-urls][1]中可以看到：
> 有时您可能希望发送非表单编码的数据。如果您传入一个字符串而不是字典，那些数据将会被直接发送。
因此，看起来您的端点接受JSON编码的数据。在这种情况下，您应该`import json`并更新您的`test_create_card`函数如下所示。
```python
def test_create_card():
    x = req.post(
        URL,
        headers=header,
        data=json.dumps(payload)
    ).json()
    print(x)
    assert x.status_code == 200