DrawingManager di Google Maps e deprecazioni delle API: guida alla migrazione 2026

// Removed in 2026: these constructors no longer work
const heatmap = new google.maps.visualization.HeatmapLayer({ data: points });
const drawingManager = new google.maps.drawing.DrawingManager();

// Legacy and deprecated, no shutdown date yet
const directionsService = new google.maps.DirectionsService();
const distanceMatrixService = new google.maps.DistanceMatrixService();

# Find all files using deprecated Google Maps services
grep -rn "DirectionsService\|DistanceMatrixService\|DirectionsRenderer\|HeatmapLayer\|DrawingManager" \
  --include="*.js" --include="*.ts" --include="*.tsx" --include="*.jsx" src/

const directionsService = new google.maps.DirectionsService();

directionsService.route(
  {
    origin: { lat: 52.52, lng: 13.405 },
    destination: { lat: 48.8566, lng: 2.3522 },
    travelMode: google.maps.TravelMode.DRIVING,
    waypoints: [
      { location: { lat: 50.9375, lng: 6.9603 }, stopover: true }
    ],
  },
  (result, status) => {
    if (status === "OK") {
      const route = result.routes[0];
      console.log("Distance:", route.legs[0].distance.text);
      console.log("Duration:", route.legs[0].duration.text);
    }
  }
);

const response = await fetch(
  `https://gateway.mapmetrics-atlas.net/directions/?token=${process.env.MAPATLAS_API_KEY}`,
  {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      // Ordered stops: origin, waypoints, destination
      locations: [
        { lat: 52.52, lon: 13.405 },
        { lat: 50.9375, lon: 6.9603 },
        { lat: 48.8566, lon: 2.3522 },
      ],
      costing: "auto", // auto, bicycle, pedestrian, bus, truck, taxi, motor_scooter
      units: "kilometers",
    }),
  }
);

const { trip } = await response.json();
console.log("Distance (km):", trip.summary.length);
console.log("Duration (s):", trip.summary.time);
// Each leg carries its geometry as an encoded polyline (precision 6)
const shapes = trip.legs.map((leg) => leg.shape);

const service = new google.maps.DistanceMatrixService();

service.getDistanceMatrix(
  {
    origins: [
      { lat: 52.52, lng: 13.405 },
      { lat: 52.3906, lng: 13.0645 },
    ],
    destinations: [
      { lat: 51.3397, lng: 12.3731 },
      { lat: 51.0504, lng: 13.7373 },
    ],
    travelMode: google.maps.TravelMode.DRIVING,
  },
  (response, status) => {
    if (status === "OK") {
      response.rows.forEach((row, i) => {
        row.elements.forEach((element, j) => {
          console.log(`Origin ${i} -> Dest ${j}:`,
            element.distance.text, element.duration.text);
        });
      });
    }
  }
);

const response = await fetch(
  `https://gateway.mapmetrics-atlas.net/matrix/?token=${process.env.MAPATLAS_API_KEY}`,
  {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      sources: [
        { lat: 52.52, lon: 13.405 },
        { lat: 52.3906, lon: 13.0645 },
      ],
      targets: [
        { lat: 51.3397, lon: 12.3731 },
        { lat: 51.0504, lon: 13.7373 },
      ],
      costing: "auto",
      units: "kilometers",
    }),
  }
);

const data = await response.json();

// One row per source, one cell per target
data.sources_to_targets.forEach((row: any[], i: number) => {
  row.forEach((cell, j) => {
    console.log(`Origin ${i} -> Dest ${j}:`, cell.distance, "km", cell.time, "s");
  });
});

import maplibregl from "maplibre-gl";

const map = new maplibregl.Map({
  container: "map",
  style: "https://gateway.mapmetrics-atlas.net/styles/?fileName=YOUR_ACCOUNT_ID/mapstyle.json&token=YOUR_API_KEY",
  center: [13.405, 52.52],
  zoom: 10,
});

map.on("load", () => {
  map.addSource("heat-data", {
    type: "geojson",
    data: {
      type: "FeatureCollection",
      features: heatmapPoints.map((point) => ({
        type: "Feature",
        geometry: { type: "Point", coordinates: [point.lng, point.lat] },
        properties: { weight: point.weight },
      })),
    },
  });

  map.addLayer({
    id: "heatmap-layer",
    type: "heatmap",
    source: "heat-data",
    paint: {
      "heatmap-weight": ["get", "weight"],
      "heatmap-intensity": 1,
      "heatmap-radius": 20,
      "heatmap-opacity": 0.7,
    },
  });
});

import { HeatmapLayer } from "@deck.gl/aggregation-layers";

const heatmapLayer = new HeatmapLayer({
  data: heatmapPoints,
  getPosition: (d) => [d.lng, d.lat],
  getWeight: (d) => d.weight,
  radiusPixels: 30,
});

// app/api/directions/route.ts
import { NextRequest, NextResponse } from "next/server";

// Decode an encoded polyline with precision 6 into [lon, lat] pairs
function decodePolyline6(str: string): [number, number][] {
  const coords: [number, number][] = [];
  let index = 0, lat = 0, lng = 0;
  while (index < str.length) {
    for (const axis of [0, 1]) {
      let result = 0, shift = 0, byte: number;
      do {
        byte = str.charCodeAt(index++) - 63;
        result |= (byte & 0x1f) << shift;
        shift += 5;
      } while (byte >= 0x20);
      const delta = result & 1 ? ~(result >> 1) : result >> 1;
      if (axis === 0) lat += delta; else lng += delta;
    }
    coords.push([lng / 1e6, lat / 1e6]);
  }
  return coords;
}

export async function GET(request: NextRequest) {
  const { searchParams } = new URL(request.url);
  const [oLat, oLon] = searchParams.get("origin")!.split(",").map(Number);
  const [dLat, dLon] = searchParams.get("destination")!.split(",").map(Number);

  const response = await fetch(
    `https://gateway.mapmetrics-atlas.net/directions/?token=${process.env.MAPATLAS_API_KEY}`,
    {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        locations: [{ lat: oLat, lon: oLon }, { lat: dLat, lon: dLon }],
        costing: "auto",
        units: "kilometers",
      }),
    }
  );
  if (!response.ok) {
    return NextResponse.json({ error: "routing failed" }, { status: 502 });
  }

  const { trip } = await response.json();
  const coordinates = trip.legs.flatMap((leg: { shape: string }) => decodePolyline6(leg.shape));
  return NextResponse.json({
    coordinates,
    distanceKm: trip.summary.length,
    durationS: trip.summary.time,
  });
}

import { useEffect, useRef } from "react";
import maplibregl from "maplibre-gl";

function DirectionsMap({ origin, destination }: {
  origin: { lat: number; lng: number };
  destination: { lat: number; lng: number };
}) {
  const mapRef = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const map = new maplibregl.Map({
      container: mapRef.current!,
      style: "https://gateway.mapmetrics-atlas.net/styles/?fileName=YOUR_ACCOUNT_ID/mapstyle.json&token=YOUR_API_KEY",
      center: [origin.lng, origin.lat],
      zoom: 7,
    });

    map.on("load", async () => {
      const res = await fetch(
        "/api/directions?" +
          new URLSearchParams({
            origin: `${origin.lat},${origin.lng}`,
            destination: `${destination.lat},${destination.lng}`,
          })
      );
      if (!res.ok) return;
      const { coordinates } = await res.json();

      map.addSource("route", {
        type: "geojson",
        data: {
          type: "Feature",
          geometry: { type: "LineString", coordinates },
          properties: {},
        },
      });

      map.addLayer({
        id: "route-line",
        type: "line",
        source: "route",
        paint: { "line-color": "#4A90D9", "line-width": 5 },
      });

      const bounds = coordinates.reduce(
        (b: maplibregl.LngLatBounds, coord: [number, number]) => b.extend(coord),
        new maplibregl.LngLatBounds(coordinates[0], coordinates[0])
      );
      map.fitBounds(bounds, { padding: 50 });
    });

    return () => map.remove();
  }, [origin, destination]);

  return <div ref={mapRef} style={{ width: "100%", height: "400px" }} />;
}

const useMapAtlasDirections = process.env.FEATURE_MAPATLAS_DIRECTIONS === "true";

const directions = useMapAtlasDirections
  ? await fetchMapAtlasDirections(origin, destination)
  : await fetchGoogleDirections(origin, destination);