La copertura internet dell’Italia, in un’unica API

npm install @netcov-io/client

// app/api/coverage/route.ts — proxy: la chiave resta sul server
import { NextResponse } from "next/server";
import { NetCovClient, ApiError } from "@netcov-io/client";

const api = new NetCovClient(); // NETCOV_API_KEY + NETCOV_BASE_URL

export async function GET(req: Request) {
  const q = new URL(req.url).searchParams;
  const params = q.get("code")
    ? { code: q.get("code")! }
    : { address: `${q.get("address")}, ${q.get("city")}` };
  try {
    return NextResponse.json(await api.coverageItaly(params));
  } catch (e) {
    const err = e as ApiError;
    return NextResponse.json({ error: err.code }, { status: err.status || 500 });
  }
}

// CoverageForm.tsx — dropdown con debounce, invio tramite code
const ac = await fetch(
  `/api/autocomplete?city=${city}&address=${value}`
).then((r) => r.json());
// civico → { code }, street → { civics: [{ civico, code }] }
const pick = (item: { kind: string; code?: string }) =>
  fetch(
    item.kind === "civico" && item.code
      ? `/api/coverage?code=${item.code}`
      : `/api/coverage?city=${city}&address=${value}`
  ).then((r) => r.json());
// mostra pick.summary.technologies + pick.summary.best + pick.attribution