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npentrel
35 lines
859 B
Plaintext
35 lines
859 B
Plaintext
```python
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from typing import NotRequired
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import requests
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from langchain_core.utils.uuid import uuid7
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from langgraph.checkpoint.memory import InMemorySaver
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from langgraph.graph import END, START, StateGraph
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from typing_extensions import TypedDict
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class State(TypedDict):
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url: str
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result: NotRequired[str]
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def call_api(state: State):
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"""Example node that makes an API request."""
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result = requests.get(state["url"]).text[:100] # [!code highlight]
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return {"result": result}
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builder = StateGraph(State)
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builder.add_node("call_api", call_api)
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builder.add_edge(START, "call_api")
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builder.add_edge("call_api", END)
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checkpointer = InMemorySaver()
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graph = builder.compile(checkpointer=checkpointer)
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thread_id = str(uuid7())
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config = {"configurable": {"thread_id": thread_id}}
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graph.invoke({"url": "https://www.example.com"}, config)
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```
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