TravelTime Isochrone API GeoJSON request

GeoJSONRequest.js

import {
  TravelTimeClient,
} from 'traveltime-api';

const travelTimeClient = new TravelTimeClient({
  apiKey: 'YOUR_APP_KEY',
  applicationId: 'YOUR_APP_ID',
});

const departure_search = {
  id: 'public transport from Trafalgar Square',
  coords: { lat: 51.507609, lng: -0.128315 },
  departure_time: new Date().toISOString(),
  travel_time: 900,
  transportation: { type: 'public_transport' },
  properties: ['is_only_walking'],
};

travelTimeClient.timeMap({
  departure_searches: [departure_search],
}, 'application/geo+json').then((data) => console.log(data))
  .catch((e) => console.error(e));