how to obtain session_id from client?

[DeoLeung]

i have a server using streamablehttp

async with Client(StreamableHTTPTransport()) as client:
   # how to get the session_id with similar like?
   client.session_id

[Therainclouds]

If you want to directly use the native MCP_TOOL, then I think it's unlikely. In my project, I have included a function in the TOOL declaration that is not wrapped by the tool modifier for internal parameter passing, so there is no need to pass data through the FASTMCP client. My approach is suitable for business functions that require passing parameters directly through the tool function.
Of course, this is just a reference. If you want to obtain the seedion_id, you can create a communication window like information retrieval location to pass it into the parameters. The specific storage method depends on your usage environment

def sync_create_payment():
logger.info(f"[create_wechat_pay] 初始化微信支付客户端")
client = WeChatPayClient()
try:
# 建立连接
client.connect()
logger.info(f"[create_wechat_pay] gRPC客户端连接成功")

            # 使用标准格式的订单号作为out_trade_no
            out_trade_no = f"ORDER_{order.id:08d}"
            logger.info(f"[create_wechat_pay] 调用gRPC创建支付订单 - out_trade_no: {out_trade_no}")
            result = client.create_native_pay(
                out_trade_no=out_trade_no,
                amount=amount,
                description=description
            )