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python - Watson Discovery API 的 add_document 方法出错

问题描述

我尝试将此代码与发现 API 一起使用，但出现了一个奇怪的错误。似乎发现无法识别我的简单 HTML 并拒绝它。我尝试了很多简单的 HTML 文件，但它不起作用：

导入系统
导入操作系统
导入json
从 watson_developer_cloud 导入 DiscoveryV1



discovery = DiscoveryV1(version="2018-10-15", url='https://gateway.watsonplatform.net/discovery/api', username=username, password=password)



with open((os.path.join(os.getcwd(), 'html_simple_file.html')), "r") as fileinfo:
    add_doc = discovery.add_document(Environment_Id,
                                     Collection_Id,
                                     file_info=fileinfo,
                                    file_content_type = "text/html")
print(json.dumps(add_doc, indent=2))







    ---------------------------------------------------------------------------
    WatsonApiException                        Traceback (most recent call last)
     in ()
         13                                      Collection_Id,
         14                                      file_info=fileinfo,
    ---> 15                                     file_content_type = "text/html")
         16 print(json.dumps(add_doc, indent=2))


~/anaconda3/lib/python3.7/site-packages/watson_developer_cloud/discovery_v1.py in add_document(self, environment_id, collection_id, file, metadata, file_content_type, filename, **kwargs)
   1246             params=params,
   1247             files=form_data,
-> 1248             accept_json=True)
   1249         return response
   1250 

~/anaconda3/lib/python3.7/site-packages/watson_developer_cloud/watson_service.py in request(self, method, url, accept_json, headers, params, json, data, files, **kwargs)
    488             error_info = self._get_error_info(response)
    489             raise WatsonApiException(response.status_code, error_message,
--> 490                                      info=error_info, httpResponse=response)

WatsonApiException: Error: Invalid Content-Type. Expected 'multipart/form-data', got 'application/octet-stream', Code: 400 , X-dp-watson-tran-id: gateway01-30825332 , X-global-transaction-id: 7ecac92c5bf2f40901d65b74

我不明白它是如何工作的。感谢您的任何帮助！

标签： pythonibm-watsonwatson-discovery

解决方案

问题在于您需要传递文件名（.html）的文件路径的open调用。这是工作代码

import os
import json
from watson_developer_cloud import DiscoveryV1

discovery = DiscoveryV1(
    version="2018-10-15",
    username='{USERNAME}',
    password='{PASSWORD}',
    #iam_apikey='{apikey}',
    url='https://gateway.watsonplatform.net/discovery/api'
)

with open(os.path.join(os.getcwd(), '/Users/VMac/Downloads/', 'Ana.json.html')) as fileinfo:
    add_doc = discovery.add_document('{DISCOVERY_ENVIRONMENT_ID}', '{DISCOVERY_COLLECTION_ID}', file=fileinfo).get_result()
print(json.dumps(add_doc, indent=2))

在上面的代码中传递所有必需的详细信息后，输出如下

{
  "document_id": "6439d5f2-f273-4173-8d25-54dc934df",
  "status": "processing"
}

在此处参考 add_document的 API 文档

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