通过 requests.post() 将字典传递给 API 的问题

Posted 2023-02-19

【中文标题】通过 requests.post() 将字典传递给 API 的问题

【英文标题】：Problem passing dictionary to API via requests.post()

【发布时间】：2022-01-06 18:32:23

【问题描述】：

如下所述，我正在尝试将字典 数据 传递给 API。

def create_flow_and_phases(request):

    data = 
        "name": "name_example",
        "description":"description_example",
        "category": 2,
        "precedents": [2,3],
        "users": [1],
        "phases": [
                "name": "phase_name",
                "description": "description name",
                "sequence_number": 1,
                "precedents": [1]
            ]
    

    # Making a POST request to save flow_and_phases
    url = API_HOST + "/api/flows/save_flow_and_phases/"

    answer = requests.post(url, data=data, headers='Authorization': 'Token ' + request.session['user_token'])

    if not answer.ok:
        raise Exception("An error occurred while creating flow.")

在下面，您可以看到字典 data 格式与 Insomnia 中传递给 API 的格式相同，并且可以完美运行。

  "name": "Testando criação de fluxo pelo Insomnia",
  "description": "Fluxo teste simulando informações de trato e colheita de café na fazendo fictícia Quipo",
  "category": 2,
  "precedents": [2, 3],
    "users": [1],
    "phases": [
         
            "name": "Trato anual",
            "description": "Descrição teste fase 1.",
            "sequence_number": 1,
            "precedents": []
         ,
        
            "name": "Trato anual 2",
            "description": "Descrição teste fase 2.",
            "sequence_number": 2,
            "precedents": [1]
         
    ]

后端接收数据如下

flow_data = dict(data) # data is passed as parameter

但是当我去运行debub时，引用阶段的数据并没有传递给API，如下面的截图所示

如图所示，没有通过阶段列表。发生了什么？有什么建议吗？

【参考方案1】：

将数据发布为 JSON，嵌套数据不能作为常规 POST 数据。您可以在json 参数中传递数据，请求应为您处理标头和序列化

answer = requests.post(url, json=data, headers='Authorization': 'Token ' + request.session['user_token'])