What the routing SDK adds

The routing services, the map modules and the core types are one surface: every response is GeoJSON that the next call and the map take unchanged. This is what that buys you.

What you get

• One function per job, across several endpoints — calculateRoute() picks the right one and keeps your parameters valid whichever it picks.
• Fields the API does not return, computed from the ones it does.
• Eighteen section types drawn and styled by config, not by layer specs.
• Every output is the next call's input — no adapters, one API key.
• The MapLibre escape hatch stays open: map.mapLibreMap, and a full layer spec per section whenever you want one.

One function, two endpoints

calculateRoute() serves both the regular routing endpoint and the long-distance EV one, picking between them on whether you passed vehicle.preferences.chargingPreferences.

• You never choose, and never have to detect which ran.
• Parameter support is the intersection of both, never the union — so adding charging preferences cannot quietly stop another parameter being honoured.
• Hand-written, this is two clients, and you learn which parameters the other endpoint ignores from a customer reporting a wrong answer.

Fields the API does not return

Sections, drawn and styled

A route can carry eighteen kinds of section — stretches with a property worth showing: traffic delays, tunnels, ferries, toll roads, low-emission zones, unpaved surfaces, speed limits and more.

• Leaving sectionTypes unset asks for all eighteen. Naming a list narrows it, and a type you leave out does not come back.
• RoutingModule draws them, and restyling one is config rather than a layer spec:

const routing = await RoutingModule.create(map, {
  sections: {
    urban: { visible: true },
    lowEmissionZone: { color: '#1B7A43', opacity: 0.8 },
  },
});

• The stretches worth seeing at a glance draw themselves — tunnels, ferries, toll roads, traffic. urban is opt-in because it runs most of a route and would bury the line.
• What the module keeps right is what rots in a hand-rolled version: z-order between the selected route and its alternatives, surviving a setStyle, keeping two route modules on one map from colliding, and hit-testing.

Every output is the next call's input

Each step takes the previous step's response as it stands:

const waypoints = await Promise.all(['Munich, DE', 'Verona, IT'].map(geocodeOne));
const routes = await calculateRoute({ locations: waypoints, vehicle: evVehicle });

// The route feature goes straight into the search
const alongRoute = await search({
  poiCategories: ['ELECTRIC_VEHICLE_STATION'],
  route: routes.features[0],
  maxDetourTimeSeconds: 300,
});

// The destination waypoint goes straight into the range
const ranges = await calculateReachableRanges([
  { origin: waypoints.at(-1), budget: { type: 'timeMinutes', value: 20 } },
]);

• One key and one configuration for all four calls, and the results go to the map modules unchanged.
• Written from scratch, that is four clients, four response shapes, and every join is yours.
• The demo above is this chain, on a map.

Where a reachable range goes

A reachable range is a polygon rather than a route, so RoutingModule does not draw it. Pass it to GeometriesModule through prepareReachableRangesForDisplay — see Reachable ranges.

Related guides and examples

• Route planning parameters — every parameter the three endpoints take.
• Long distance EV routing — charging preferences, and the endpoint they switch on.
• Displaying routes — RoutingModule, section styling and route events.
• Routing Composite — the four-service chain above.