대부분의 경우, LangSmith Deployment에 구현된 영구 상태를 통해 이전 실행을 추적하기 위해 graph를 실행할 때 client에 thread_id를 제공합니다. 그러나 실행을 영구적으로 저장할 필요가 없다면 내장된 영구 상태를 사용할 필요가 없으며 stateless 실행을 생성할 수 있습니다.

​
Setup

먼저 client를 설정해보겠습니다:
  • Python
  • Javascript
  • CURL
from langgraph_sdk import get_client

client = get_client(url=<DEPLOYMENT_URL>)
# Using the graph deployed with the name "agent"
assistant_id = "agent"
# create thread
thread = await client.threads.create()

​
Stateless streaming

상태 속성이 있는 실행에서 streaming하는 방식과 거의 동일한 방식으로 stateless 실행의 결과를 streaming할 수 있지만, thread_id parameter에 값을 전달하는 대신 None을 전달합니다:
  • Python
  • Javascript
  • CURL
input = {
    "messages": [
        {"role": "user", "content": "Hello! My name is Bagatur and I am 26 years old."}
    ]
}

async for chunk in client.runs.stream(
    # Don't pass in a thread_id and the stream will be stateless
    None,
    assistant_id,
    input=input,
    stream_mode="updates",
):
    if chunk.data and "run_id" not in chunk.data:
        print(chunk.data)
Output: 
{'agent': {'messages': [{'content': "Hello Bagatur! It's nice to meet you. Thank you for introducing yourself and sharing your age. Is there anything specific you'd like to know or discuss? I'm here to help with any questions or topics you're interested in.", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'ai', 'name': None, 'id': 'run-489ec573-1645-4ce2-a3b8-91b391d50a71', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}]}}

​
Stateless 결과 대기

Streaming 외에도 다음과 같이 .wait function을 사용하여 stateless 결과를 기다릴 수 있습니다:
  • Python
  • Javascript
  • CURL
stateless_run_result = await client.runs.wait(
    None,
    assistant_id,
    input=input,
)
print(stateless_run_result)
Output: 
{
'messages': [
{
'content': 'Hello! My name is Bagatur and I am 26 years old.',
'additional_kwargs': {},
'response_metadata': {},
'type': 'human',
'name': None,
'id': '5e088543-62c2-43de-9d95-6086ad7f8b48',
'example': False}
,
{
'content': "Hello Bagatur! It's nice to meet you. Thank you for introducing yourself and sharing your age. Is there anything specific you'd like to know or discuss? I'm here to help with any questions or topics you'd like to explore.",
'additional_kwargs': {},
'response_metadata': {},
'type': 'ai',
'name': None,
'id': 'run-d6361e8d-4d4c-45bd-ba47-39520257f773',
'example': False,
'tool_calls': [],
'invalid_tool_calls': [],
'usage_metadata': None
}
]
}
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