tutorial85

tutorial85/main.py

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+import boto3
+from langchain_aws import ChatBedrock
+client=boto3.client(service_name="bedrock-runtime",region_name="us-east-1")
+llm=ChatBedrock(model_id="amazon.titan-text-premier-v1:0",client=client)
+response=llm.invoke("write an articvle on AI in Education sector")
+print(response.content)

tutorial86/main.py

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+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+from neo4j import GraphDatabase
+
+app = FastAPI()
+
+# Neo4j driver initialization
+uri = "bolt://localhost:7687"  # Change to your Neo4j URI
+user = "neo4j"  # Change to your Neo4j username
+password = "12345678"  # Change to your Neo4j password
+driver = GraphDatabase.driver(uri, auth=(user, password))
+
+class Node(BaseModel):
+    label: str
+    properties: dict
+
+def create_node_in_neo4j(label: str, properties: dict):
+    query = f"CREATE (n:{label}) set n= $properties RETURN n"
+    with driver.session() as session:
+        x={"properties":properties}
+        result = session.run(query, x)
+        return result.single()
+
+@app.post("/nodes/")
+async def create_node(node: Node):
+    try:
+        result = create_node_in_neo4j(node.label, node.properties)
+        if result:
+            return {"message": "Node created successfully", "node": result["n"]}
+        else:
+            raise HTTPException(status_code=400, detail="Node creation failed")
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8000)