public DirectionsApiRequest destinationPlaceId(String destinationPlaceId) {
    return param("destination", prefixPlaceId(destinationPlaceId));
  }
The Place ID value from which you wish to calculate directions.

@param destinationPlaceId The ending location Place ID for the Directions request.
@return Returns this {@code DirectionsApiRequest} for call chaining.
src/main/java/com/google/maps/DirectionsApiRequest.java