create_react_agent with store

[hwchase17]

Checked other resources

• This is a bug, not a usage question. For questions, please use GitHub Discussions.
• I added a clear and detailed title that summarizes the issue.
• I read what a minimal reproducible example is (https://stackoverflow.com/help/minimal-reproducible-example).
• I included a self-contained, minimal example that demonstrates the issue INCLUDING all the relevant imports. The code run AS IS to reproduce the issue.

Example Code

def _prep_messages(state, config, store):
            # For store usage
            _prompt = None
            if store is not None:
                namespace = (config['configurable'][configurable_by],)
                result = store.get(namespace, "info")
                if "data" in result:
                    _prompt = result["data"]

            if _prompt is None:
                _prompt = system_prompt
            _system_message = SystemMessage(content=_prompt)
            return [_system_message] + state["messages"]

Error Message and Stack Trace (if applicable)

asyncio.exceptions.InvalidStateError: Synchronous calls to BatchedStore detected in the main event loop. This can lead to deadlocks or performance issues. Please use the asynchronous interface for main thread operations. Specifically, replace `store.get(...)` with `await store.aget(...)

Description

I'm trying to use store with create_react_agent. But it wont let me pass in a function that uses store in sync manner. and if i change to async function, create_react_agent doesn't accept it

System Info

(multi-agent-testing) ➜ multi-agent-testing git:(main) ✗ python -m
langchain_core.sys_info

System Information

OS: Darwin
OS Version: Darwin Kernel Version 22.3.0: Thu Jan 5 20:50:36 PST 2023; root:xnu-8792.81.2~2/RELEASE_ARM64_T6020
Python Version: 3.11.7 (main, Nov 16 2024, 15:15:25) [Clang 14.0.0 (clang-1400.0.29.202)]

Package Information

langchain_core: 0.3.28
langchain: 0.3.8
langchain_community: 0.3.8
langsmith: 0.1.146
langchain_anthropic: 0.3.0
langchain_openai: 0.2.9
langchain_text_splitters: 0.3.2
langgraph_api: 0.0.14
langgraph_cli: 0.1.65
langgraph_license: Installed. No version info available.
langgraph_sdk: 0.1.48
langgraph_storage: Installed. No version info available.

Optional packages not installed

langserve

Other Dependencies

aiohttp: 3.11.7
anthropic: 0.39.0
async-timeout: Installed. No version info available.
click: 8.1.8
cryptography: 43.0.3
dataclasses-json: 0.6.7
defusedxml: 0.7.1
httpx: 0.27.2
httpx-sse: 0.4.0
jsonpatch: 1.33
jsonschema-rs: 0.25.1
langgraph: 0.2.60
langgraph-checkpoint: 2.0.9
numpy: 1.26.4
openai: 1.55.1
orjson: 3.10.12
packaging: 24.2
pydantic: 2.10.2
pydantic-settings: 2.6.1
pyjwt: 2.10.1
python-dotenv: 1.0.1
PyYAML: 6.0.2
requests: 2.32.3
requests-toolbelt: 1.0.0
SQLAlchemy: 2.0.35
sse-starlette: 2.1.3
starlette: 0.42.0
structlog: 24.4.0
tenacity: 8.5.0
tiktoken: 0.8.0
typing-extensions: 4.12.2
uvicorn: 0.34.0
watchfiles: 1.0.3

[hwchase17]

this happened when trying to use it in the studio