Set a point for a route to pass through

By default, intermediate waypoints are used for stopping for pickups and dropoffs, but you can also specify that an intermediate waypoint is meant just to pass through.

A route that contains an origin waypoint, a pass-through intermediate waypoint, and a destination waypoint contains just one route leg that connects the origin and the destination, while passing through the intermediate (called a via) waypoint.

Configure an intermediate waypoint to be a pass-through waypoint by setting the via property of the waypoint to true using the Waypoint interface.

The via property is most effective when creating routes in response to the user dragging the waypoints on the map. Doing so allows the user to see how the final route may look in real-time and helps ensure that waypoints are placed in locations that are accessible to the Routes library.

Example request

The following example request demonstrates how to mark an intermediate waypoint as a pass-through waypoint.

const routeRequestWithVia = {
  origin: '100 Moffett Blvd, Mountain View, CA 94043',
  destination: '1199 9th Ave, San Francisco, CA 94122',
  travelMode: 'DRIVING',
  intermediates: [
    {location: 'Half Moon Bay, CA', via: true} // Set the via property to true
  ],
  fields: ['path', 'legs'],
};

// Make the request.
const {routes, fallbackInfo, geocodingResults} = await Route.computeRoutes(routeRequestWithIntermediates);
  

Access place IDs for intermediate waypoints

If you specify the location of an origin, destination, or intermediate waypoint as an address string or as a Plus code, the Routes library attempts to find the most relevant location which has a corresponding place ID. The geocodingResults.intermediates array in the results contains the place ID corresponding to the location of the waypoints, along with additional data about the location.

Example geocoding results response

{
  "origin": {
    "geocoderStatus": "OK",
    "types": [
      "premise",
      "street_address"
    ],
    "partialMatch": false,
    "placeId": "ChIJb5NgcTa3j4ARrfF4Oc_f6q8",
    "intermediateWaypointRequestIndex": null
  },
  "destination": {
    "geocoderStatus": "OK",
    "types": [
      "premise",
      "street_address"
    ],
    "partialMatch": false,
    "placeId": "ChIJAbIPLl2HhYARQ0SSdDFxU-s",
    "intermediateWaypointRequestIndex": null
  },
  "intermediates": [
    {
      "geocoderStatus": "OK",
      "types": [
        "locality",
        "political"
      ],
      "partialMatch": false,
      "placeId": "ChIJC8sZCqULj4ARVJvnNcic_V4",
      "intermediateWaypointRequestIndex": 0
    }
  ]
}