JSON object 映射器用於 Python

Question

基本上我正在自動化 python 中的 API，API 返回 Z0ECD11C1D7A287401D148A23BBD7A2 F 看起來像下面的響應

在 java 中，我可以使用 POJO Model 驗證架構，使用 Gson lib 就像休閑一樣 -

GetCustomerModel - is my custom POJO class have so 3 inner classes.
GetCustomerModel body = new Gson().fromJson(response.getBody(),GetCustomerModel.class);

Python 中是否有任何庫支持來做同樣的事情，我的意思是將 json 轉換為自定義 python 映射 ZA8CFDE6331C49EB2ACZ6F966

[{
    "businessUnit": {
        "code": "27888",
        "type": "LSCCC"
    },
    "timeWindows": [
        {
            "freeCapacity": true,
            "capacityTemplateIdentifier": "xxxxxxxxxxxx",
            "cutOff": "2020-11-30T17:00:00Z",
            "end": "2020-11-30T17:00:00Z",
            "maxCapacity": 0,
            "start": "2020-11-30T08:00:00Z",
            "timeWindowIdentifier": "yyyyyyyyyyyyyy",
            "tspId": "9900001"
        }
    ],
    "timeZone": "Europe/London"
}]

Python Model -

from dataclasses import dataclass
from datetime import datetime
from uuid import UUID
from typing import List


@dataclass
class BusinessUnit:
    code: int
    type: str


@dataclass
class TimeWindow:
    free_capacity: bool
    capacity_template_identifier: str
    cut_off: datetime
    end: datetime
    max_capacity: int
    start: datetime
    time_window_identifier: UUID
    tsp_id: int


@dataclass
class WelcomeElement:
    business_unit: BusinessUnit
    time_windows: List[TimeWindow]
    time_zone: str

我的代碼 -

result = from_dict(data_class=WelcomeElement, data=response.content)

給出錯誤提示 - “元組索引必須是整數或切片，而不是 str”

Answer 1

下面的代碼有效：

需要改進的幾點：

• 使用類型掛鈎來轉換數據類型

• 處理camelCase和snake_case

   from dataclasses import dataclass from datetime import datetime from uuid import UUID from typing import List from dacite import from_dict @dataclass class BusinessUnit: code: int type: str @dataclass class TimeWindow: free_capacity: bool capacity_template_identifier: str cut_off: str end: str max_capacity: int start: str time_window_identifier: str tsp_id: int @dataclass class WelcomeElement: business_unit: BusinessUnit time_windows: List[TimeWindow] time_zone: str data = [{ "business_unit": { "code": 27888, "type": "LSCCC" }, "time_windows": [ { "free_capacity": True, "capacity_template_identifier": "xxxxxxxxxxxx", "cut_off": "2020-11-30T17:00:00Z", "end": "2020-11-30T17:00:00Z", "max_capacity": 0, "start": "2020-11-30T08:00:00Z", "time_window_identifier": "yyyyyyyyyyyyyy", "tsp_id": 9900001 } ], "time_zone": "Europe/London" }] print('start') result = from_dict(data_class=WelcomeElement, data=data[0]) print(result)

  output

   start WelcomeElement(business_unit=BusinessUnit(code=27888, type='LSCCC'), time_windows=[TimeWindow(free_capacity=True, capacity_template_identifier='xxxxxxxxxxxx', cut_off='2020-11-30T17:00:00Z', end='2020-11-30T17:00:00Z', max_capacity=0, start='2020-11-30T08:00:00Z', time_window_identifier='yyyyyyyyyyyyyy', tsp_id=9900001)], time_zone='Europe/London')