Function Calling

Python

from openai import OpenAI
import json

client = OpenAI(api_key="your-api-key", base_url="https://www.cheapertoken.work/v1")

tools = [
    {
        "type": "function",
        "function": {
            "name": "get_weather",
            "description": "获取指定城市的天气",
            "parameters": {
                "type": "object",
                "properties": {
                    "city": {"type": "string", "description": "城市名称"}
                },
                "required": ["city"],
            },
        },
    }
]

response = client.chat.completions.create(
    model="gemini-2.5-flash",
    messages=[{"role": "user", "content": "上海今天天气怎么样？"}],
    tools=tools,
    tool_choice="auto",
)

tool_call = response.choices[0].message.tool_calls[0]
args = json.loads(tool_call.function.arguments)
print(f"调用函数: {tool_call.function.name}, 参数: {args}")

JavaScript

import OpenAI from "openai";

const client = new OpenAI({ apiKey: "your-api-key", baseURL: "https://www.cheapertoken.work/v1" });

const tools = [
  {
    type: "function",
    function: {
      name: "get_weather",
      description: "获取指定城市的天气",
      parameters: {
        type: "object",
        properties: { city: { type: "string", description: "城市名称" } },
        required: ["city"],
      },
    },
  },
];

const response = await client.chat.completions.create({
  model: "gemini-2.5-flash",
  messages: [{ role: "user", content: "上海今天天气怎么样？" }],
  tools,
  tool_choice: "auto",
});

const toolCall = response.choices[0].message.tool_calls[0];
const args = JSON.parse(toolCall.function.arguments);
console.log(`调用函数: ${toolCall.function.name}, 参数:`, args);

curl

curl https://www.cheapertoken.work/v1/chat/completions \
  -H "Authorization: Bearer your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-2.5-flash",
    "messages": [{"role": "user", "content": "上海今天天气怎么样？"}],
    "tools": [{
      "type": "function",
      "function": {
        "name": "get_weather",
        "description": "获取指定城市的天气",
        "parameters": {
          "type": "object",
          "properties": {"city": {"type": "string", "description": "城市名称"}},
          "required": ["city"]
        }
      }
    }],
    "tool_choice": "auto"
  }'