python - 无法使用 python requests 发布文件 - 来自curl的翻译

Question

以下命令有效，但我无法使用 python-requests (2.18.4) 重现它:

curl -X POST -H "Authorization: Bearer ..." \
             -H "Content-Type: multipart/form-data" \
             -F 'metadata={...} 
             -F 'data=@data.bz2;type=application/octet-stream' 
              https://www....com

使用下面的 send_devices，我收到“不支持的媒体类型”

def send_devices(basic_auth):
    endpoint_api = ' https://www....com'
    with open('data.bz2','rb') as payload:
        response = requests.post(endpoint_api, data={'metadata': ...,
                                                     'data': payload},
                                 headers={'Authorization': 'Bearer {0}'.format(basic_auth})

经过一些评论，我也尝试了，现在的错误是“无效的元数据 Json 字符串”:

def send_devices(basic_auth):
    endpoint_api = ' https://www....com'
    files = {'file': ('data.bz2', open('data.bz2', 'rb'), 'application/octet-stream')}
    response = requests.post(endpoint_api, data={"metadata": {"extensions":{"urnType":"IDFA"}}},
                             files=files, headers={'Authorization': 'Bearer {0}'.format(basic_auth)})

Answer 1

在第一个示例中，缺少文件类型

'data': ('data.bz2', open('data.bz2', 'rb'), 'application/octet-stream'),

在第二个示例中，有必要在同一文件字典上添加额外的发布数据。即使不是字典:

'metadata': ('metadata.csv', json.dumps({"extensions": ...}))}

解决办法:

def send_devices(basic_auth):
    endpoint_api = ' https://www....com'
    files = {'data': ('data.bz2', open('data.bz2', 'rb'), 'application/octet-stream'),
            'metadata': ('metadata.csv', json.dumps({"extensions": ...}))}
    response = requests.post(endpoint_api, files=files,
                             headers={'Authorization': 'Bearer {0}'.format(basic_auth)})