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create_react_agent with store #370

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opened 2026-02-20 17:39:09 -05:00 by yindo · 1 comment
yindo commented 2026-02-20 17:39:09 -05:00
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Originally created by @hwchase17 on GitHub (Dec 25, 2024).

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

Originally created by @hwchase17 on GitHub (Dec 25, 2024). ### Checked other resources - [X] This is a bug, not a usage question. For questions, please use GitHub Discussions. - [X] I added a clear and detailed title that summarizes the issue. - [X] I read what a minimal reproducible example is (https://stackoverflow.com/help/minimal-reproducible-example). - [X] 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 ```python 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) ```shell 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
yindo added the bugmaintainer labels 2026-02-20 17:39:09 -05:00
yindo closed this issue 2026-02-20 17:39:10 -05:00
yindo commented 2026-02-20 17:39:13 -05:00
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@hwchase17 commented on GitHub (Dec 25, 2024):

this happened when trying to use it in the studio

@hwchase17 commented on GitHub (Dec 25, 2024): this happened when trying to use it in the studio
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Reference: langchain-ai/langgraph#370
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