⚡ Live Sandbox: AI Dev Tool: AGENTSmd AINative SaaS (lz5h)

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```python
# AI Dev Tool: Edge Function Vector Search API
# ============================================
# A production-ready API integration wrapper for PostgreSQL Vector Search Extension
# using Cloudflare Workers, Hono, and FastAPI with Pydantic v2 for type-safe data validation

import os
import json
from typing import List, Dict
from pydantic import BaseModel
from fastapi import FastAPI, HTTPException
from fastapi.responses import JSONResponse
from fastapi.requests import Request
from hono import Hono
from cloudflare import WorkersKV

# Initialize Hono and Cloudflare Workers
hono = Hono()
workers_kv = WorkersKV()

# Define the Vector Search API model
class VectorSearchQuery(BaseModel):
    """Vector search query model"""
    query: str
    limit: int = 10

class VectorSearchResult(BaseModel):
    """Vector search result model"""
    id: int
    score: float
    vector: List[float]

# Define the API routes
app = FastAPI()

@app.post("/vector-search")
async def vector_search(query: VectorSearchQuery):
    """
    Perform a vector search query on the PostgreSQL database
    using the Vector Search Extension
    """
    try:
        # Connect to the

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