Google Maps Routing: Node.js Client

 npm install @googlemaps/routing 

 /**
 * This snippet has been automatically generated and should be regarded as a code template only.
 * It will require modifications to work.
 * It may require correct/in-range values for request initialization.
 * TODO(developer): Uncomment these variables before running the sample.
 */
/**
 *  Required. Origin waypoint.
 */
// const origin = {}
/**
 *  Required. Destination waypoint.
 */
// const destination = {}
/**
 *  Optional. A set of waypoints along the route (excluding terminal points),
 *  for either stopping at or passing by. Up to 25 intermediate waypoints are
 *  supported.
 */
// const intermediates = 1234
/**
 *  Optional. Specifies the mode of transportation.
 */
// const travelMode = {}
/**
 *  Optional. Specifies how to compute the route. The server
 *  attempts to use the selected routing preference to compute the route. If
 *   the routing preference results in an error or an extra long latency, then
 *  an error is returned. In the future, we might implement a fallback
 *  mechanism to use a different option when the preferred option does not give
 *  a valid result. You can specify this option only when the `travel_mode` is
 *  `DRIVE` or `TWO_WHEELER`, otherwise the request fails.
 */
// const routingPreference = {}
/**
 *  Optional. Specifies your preference for the quality of the polyline.
 */
// const polylineQuality = {}
/**
 *  Optional. Specifies the preferred encoding for the polyline.
 */
// const polylineEncoding = {}
/**
 *  Optional. The departure time. If you don't set this value, then this value
 *  defaults to the time that you made the request. If you set this value to a
 *  time that has already occurred, then the request fails.
 */
// const departureTime = {}
/**
 *  Optional. Specifies whether to calculate alternate routes in addition to the route.
 */
// const computeAlternativeRoutes = true
/**
 *  Optional. A set of conditions to satisfy that affect the way routes are
 *  calculated.
 */
// const routeModifiers = {}
/**
 *  Optional. The BCP-47 language code, such as "en-US" or "sr-Latn". For more
 *  information, see
 *  http://www.unicode.org/reports/tr35/#Unicode_locale_identifier. See
 *  Language Support (https://developers.google.com/maps/faq#languagesupport)
 *  for the list of supported languages. When you don't provide this value, the
 *  display language is inferred from the location of the route request.
 */
// const languageCode = 'abc123'
/**
 *  Optional. Specifies the units of measure for the display fields. This
 *  includes the `instruction` field in `NavigationInstruction`. The units of
 *  measure used for the route, leg, step distance, and duration are not
 *  affected by this value. If you don't provide this value, then the display
 *  units are inferred from the location of the request.
 */
// const units = {}

// Imports the Routing library
const {RoutesClient} = require(' @googlemaps/routing 
').v2;

// Instantiates a client
const routingClient = new RoutesClient 
();

async function callComputeRoutes() {
  // Construct request
  const request = {
    origin,
    destination,
  };

  // Run request
  const response = await routingClient.computeRoutes(request);
  console.log(response);
}

callComputeRoutes();