Dify-HTTP请求文件操作

senge

2025 年 06 月 08 日

58 次浏览

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学习笔记

使用Dify工作流做了给总结视频内容的工具。

因为阿里的接口返回的json文件，Dify的HTTP请求之后自动将文件存储到了Dify。HTTP请求文件节点返回Body为空，文件信息保存在files里
2025-06-08T06:33:22.png

{
  "status_code": 200,
  "body": "",
  "headers": {
    "server": "AliyunOSS",
    "date": "Sun, 08 Jun 2025 03:45:09 GMT",
    "content-type": "application/json",
    "transfer-encoding": "chunked",
    "connection": "keep-alive",
    "vary": "Accept-Encoding",
    "x-oss-request-id": "68450745F4EF8133368598B3",
    "last-modified": "Sun, 08 Jun 2025 03:44:58 GMT",
    "x-oss-object-type": "Normal",
    "x-oss-hash-crc64ecma": "10081479749614708832",
    "x-oss-storage-class": "Standard",
    "x-oss-expiration": "expiry-date=\"Mon, 07 Jul 2025 00:00:00 GMT\", rule-id=\"baxxxx3-bd97-45bf-9a98-548f4xxx845\"",
    "x-oss-ec": "0048-00000113",
    "content-disposition": "attachment",
    "x-oss-force-download": "true",
    "content-md5": "wNudyHxxxxx+nZBh3A==",
    "x-oss-server-time": "13",
    "content-encoding": "gzip"
  },
  "files": [
    {
      "dify_model_identity": "__dify__file__",
      "id": null,
      "tenant_id": "xxxx-8517-4a26-b1b4-f75250811cfa",
      "type": "custom",
      "transfer_method": "tool_file",
      "remote_url": null,
      "related_id": "c81bf4b1-a3de-40f7-9fe8-xxxxx",
      "filename": "187a22c0806b4a6faxxxxbb908.json",
      "extension": ".json",
      "mime_type": "application/json",
      "size": 41161,
      "url": "https://upload.dify.ai/files/tools/xxxxx.json?timestamp=1749354309&nonce=xxxx&sign=xxxx="
    }
  ]
}

代码执行板块代码如下

import json
import requests 

def main(arg1) -> dict:
    if not arg1:
        raise ValueError("arg1 数组为空")
    first_item = arg1[0]
    if "filename" in first_item and "url" in first_item:
        filename = first_item["filename"]
        file_url = first_item["url"]
        file_content = read_remote_json(file_url)
        return {
            "filename": filename,
            "content": file_content["transcripts"][0]["text"],
        }
    else:
        raise KeyError("字典中缺少 'filename' 或 'url' 键")

def read_remote_json(url):
    """
    从远程 URL 读取 JSON 文件并返回其内容。
    """
    response = requests.get(url)

    # 检查请求是否成功
    if response.status_code == 200:
        try:
            return response.json()  # 返回解析后的 JSON 数据
        except json.JSONDecodeError:
            raise ValueError("远程文件不是有效的 JSON 格式")
    else:
        raise Exception(f"无法读取远程文件，状态码：{response.status_code}")

Dify-HTTP请求文件操作