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50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
"""
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Example of custom graph using existing nodes
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"""
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from langchain_community.chat_models import ChatOllama
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from scrapegraphai.nodes import RobotsNode
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# ************************************************
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# Define the configuration for the graph
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# ************************************************
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graph_config = {
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"llm": {
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"model": "llama3",
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"temperature": 0,
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"streaming": True
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},
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"embeddings": {
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"model": "nomic-embed-text",
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"temperature": 0,
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# "base_url": "http://localhost:11434", # set ollama URL arbitrarily
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}
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}
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# ************************************************
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# Define the node
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# ************************************************
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llm_model = ChatOllama(graph_config["llm"])
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robots_node = RobotsNode(
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input="url",
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output=["is_scrapable"],
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node_config={"llm_model": llm_model,
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"headless": False
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}
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)
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# ************************************************
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# Test the node
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# ************************************************
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state = {
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"url": "https://twitter.com/home"
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}
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result = robots_node.execute(state)
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print(result)
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