API 扩展
开发者可通过 API 扩展模块能力,当前支持以下模块扩展:
moderation
内容对齐external_data_tool
外部数据工具
在扩展模块能力之前,您需要准备一个 API 和用于鉴权的 API Key(也可由平台自动生成)。
除了需要开发对应的模块能力,还需要遵照以下规范,以便平台正确调用 API。
API 规范
平台将会以以下规范调用您的接口:
POST {Your-API-Endpoint}
Header
Header
Value
Desc
Content-Type
application/json
请求内容为 JSON 格式。
Authorization
Bearer {api_key}
API Key 以 Token 令牌的方式传输,您需要解析该 api_key
并确认是否和提供的 API Key 一致,保证接口安全。
Request Body
{
"point": string, // 扩展点,不同模块可能包含多个扩展点
"params": {
... // 各模块扩展点传入参数
}
}
API 返回
{
... // API 返回的内容,不同扩展点返回见不同模块的规范设计
}
校验
在平台配置 API-based Extension 时,将会发送一个请求至 API Endpoint,以检验 API 的可用性。
当 API Endpoint 接收到 point=ping
时,接口应返回 result=pong
,具体如下:
Header
Content-Type: application/json
Authorization: Bearer {api_key}
Request Body
{
"point": "ping"
}
API 期望返回
{
"result": "pong"
}
范例
此处以外部数据工具为例,场景为根据地区获取外部天气信息作为上下文。
API 范例
POST https://fake-domain.com/api/receive
Header
Content-Type: application/json
Authorization: Bearer 123456
Request Body
{
"point": "app.external_data_tool.query",
"params": {
"app_id": "61248ab4-1125-45be-ae32-0ce91334d021",
"tool_variable": "weather_retrieve",
"inputs": {
"location": "London"
},
"query": "How's the weather today?"
}
}
API 返回
{
"result": "City: London\nTemperature: 10°C\nRealFeel®: 8°C\nAir Quality: Poor\nWind Direction: ENE\nWind Speed: 8 km/h\nWind Gusts: 14 km/h\nPrecipitation: Light rain"
}
代码范例
代码基于 Python FastAPI 框架。
安装依赖
pip install fastapi[all] uvicorn
按照接口规范编写代码
from fastapi import FastAPI, Body, HTTPException, Header from pydantic import BaseModel app = FastAPI() class InputData(BaseModel): point: str params: dict = {} @app.post("/api/receive") async def receive(data: InputData = Body(...), authorization: str = Header(None)): """ Receive API query data. """ expected_api_key = "123456" # TODO Your API key of this API auth_scheme, _, api_key = authorization.partition(' ') if auth_scheme.lower() != "bearer" or api_key != expected_api_key: raise HTTPException(status_code=401, detail="Unauthorized") point = data.point # for debug print(f"point: {point}") if point == "ping": return { "result": "pong" } if point == "app.external_data_tool.query": return handle_app_external_data_tool_query(params=data.params) # elif point == "{point name}": # TODO other point implementation here raise HTTPException(status_code=400, detail="Not implemented") def handle_app_external_data_tool_query(params: dict): app_id = params.get("app_id") tool_variable = params.get("tool_variable") inputs = params.get("inputs") query = params.get("query") # for debug print(f"app_id: {app_id}") print(f"tool_variable: {tool_variable}") print(f"inputs: {inputs}") print(f"query: {query}") # TODO your external data tool query implementation here, # return must be a dict with key "result", and the value is the query result if inputs.get("location") == "London": return { "result": "City: London\nTemperature: 10°C\nRealFeel®: 8°C\nAir Quality: Poor\nWind Direction: ENE\nWind " "Speed: 8 km/h\nWind Gusts: 14 km/h\nPrecipitation: Light rain" } else: return {"result": "Unknown city"}
启动 API 服务,默认端口为 8000,API 完整地址为:
http://127.0.0.1:8000/api/receive
,配置的 API Key 为123456
。uvicorn main:app --reload --host 0.0.0.0
配置该 API。

在 App 中选择该 API 扩展。
App 调试时,平台将请求配置的 API,并发送以下内容:
{
"point": "app.external_data_tool.query",
"params": {
"app_id": "61248ab4-1125-45be-ae32-0ce91334d021",
"tool_variable": "weather_retrieve",
"inputs": {
"location": "London"
},
"query": "How's the weather today?"
}
}
API 返回为:
{
"result": "City: London\nTemperature: 10°C\nRealFeel®: 8°C\nAir Quality: Poor\nWind Direction: ENE\nWind Speed: 8 km/h\nWind Gusts: 14 km/h\nPrecipitation: Light rain"
}
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