import requests
import json

# API配置
API_URL = "https://api.apexrouter.top/v1/rerank"
API_KEY = "sk-****************************"  # 替换为你的实际API密钥

def rerank_documents(query, docs, top_n=3):
    """
    文档重排序函数

    :param query: 查询文本
    :param docs: 待排序文档列表
    :param top_n: 返回结果数量
    :return: 排序后的文档索引和分数
    """
    payload = {
        "model": "jina-reranker-m0",
        "query": query,
        "top_n": top_n,
        "documents": docs
    }

    headers = {
        "Authorization": f"{API_KEY}",
        "Content-Type": "application/json"
    }

    # 发送API请求
    response = requests.post(API_URL, headers=headers, data=json.dumps(payload))
    response.raise_for_status()  # 检查请求是否成功

    return response.json()

# 使用示例
if __name__ == "__main__":
    query = "如何预防感冒"
    documents = [
        "预防感冒应勤洗手、戴口罩...",
        "流感疫苗每年10月接种最佳...",
        # 其他文档...
    ]

    result = rerank_documents(query, documents)
    print("重排序结果:", result)

{
  "results": [
    {
      "index": 0,
      "relevance_score": 0.97
    },
    {
      "index": 1,
      "relevance_score": 0.93
    }
  ],
  "usage": {
    "prompt_tokens": 144,
    "total_tokens": 144
  }
}