aichain-sdk 0.1.2

AI Chain Python Client SDK for IIP Dispatch WebSocket protocol v2.0

AI Chain Python Client SDK

This package provides a Python implementation of the AI Chain Client SDK for the WebSocket v2.1 interaction protocol described in:

• 交互协议设计文档.md
• Client SDK设计文档.md

Features

• Async WebSocket client (AIChainClient) based on asyncio
• Strongly-typed session configuration (SessionConfig) matching the protocol
• Typed request items (TextItem, ImageItem, AudioItem)
• Typed result / event objects (STT, NLU, TTS, welcome, system events)
• Event-based callback system: client.on(event, callback)
• Built‑in CID generation and checksum generation utilities
• Heartbeat loop after session.configed

Installation

In your own project (outside this repo) you can install this package once it is packaged and published, for example:

pip install aichain-sdk

For local development inside this repository:

pip install -e .

Quick Start

import asyncio
from aichain_sdk import AIChainClient, SessionConfig


async def main():
    client = AIChainClient(
        app_id="your_app_id",
        app_key="your_app_key",
        host="itv-bbs.openspeech.cn:9706",
        sn="SN123456789",
        scene="customer_service",
    )

    @client.on("nlu.answer")
    def on_nlu_answer(cid, result, is_last):
        print(result.answer, end="", flush=True)
        if is_last:
            print("\n[NLU done]")

    await client.connect()
    await client.set_config(
        SessionConfig(
            nlu={
                "enable": True,
                "tools": {
                    "models": [{"modelId": "spark-v3.5"}],
                    "modelId": "spark-v3.5",
                },
            }
        )
    )

    await client.begin_send()
    await client.send_text("你好")

    # keep process alive to receive streaming responses
    await asyncio.sleep(5)

    await client.disconnect()


if __name__ == "__main__":
    asyncio.run(main())

Status

This is an initial implementation aligned with the v2.1 protocol and the SDK design document. It focuses on:

• Correct protocol message formats
• Event dispatching semantics
• Core connection / configuration / send APIs

You can extend it with more advanced features such as:

• More detailed logging hooks
• Custom reconnection policies
• Rich error handling and metrics