Method: computeRoutes

Returns the primary route along with optional alternate routes, given a set of terminal and intermediate waypoints.

NOTE: This method requires that you specify a response field mask in the input. You can provide the response field mask by using URL parameter $fields or fields, or by using an HTTP/gRPC header X-Goog-FieldMask (see the available URL parameters and headers. The value is a comma separated list of field paths. See detailed documentation about how to construct the field paths.

For example, in this method:

  • Field mask of all available fields (for manual inspection): X-Goog-FieldMask: *
  • Field mask of Route-level duration, distance, and polyline (an example production setup): X-Goog-FieldMask: routes.duration,routes.distanceMeters,routes.polyline.encodedPolyline

Google discourage the use of the wildcard (*) response field mask, or specifying the field mask at the top level (routes), because:

  • Selecting only the fields that you need helps our server save computation cycles, allowing us to return the result to you with a lower latency.
  • Selecting only the fields that you need in your production job ensures stable latency performance. We might add more response fields in the future, and those new fields might require extra computation time. If you select all fields, or if you select all fields at the top level, then you might experience performance degradation because any new field we add will be automatically included in the response.
  • Selecting only the fields that you need results in a smaller response size, and thus higher network throughput.

HTTP request

POST https://routes.googleapis.com/directions/v2:computeRoutes

The URL uses gRPC Transcoding syntax.

Request body

The request body contains data with the following structure:

JSON representation 
{
  "origin": {
    object (Waypoint)
  },
  "destination": {
    object (Waypoint)
  },
  "intermediates": [
    {
      object (Waypoint)
    }
  ],
  "travelMode": enum (RouteTravelMode),
  "routingPreference": enum (RoutingPreference),
  "polylineQuality": enum (PolylineQuality),
  "polylineEncoding": enum (PolylineEncoding),
  "departureTime": string,
  "computeAlternativeRoutes": boolean,
  "routeModifiers": {
    object (RouteModifiers)
  },
  "languageCode": string,
  "regionCode": string,
  "units": enum (Units),
  "requestedReferenceRoutes": [
    enum (ReferenceRoute)
  ],
  "extraComputations": [
    enum (ExtraComputation)
  ]
}
Fields
origin

object (Waypoint)

Required. Origin waypoint.
destination

object (Waypoint)

Required. Destination waypoint.
intermediates[]

object (Waypoint)

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.
travelMode

enum (RouteTravelMode)

Optional. Specifies the mode of transportation.
routingPreference

enum (RoutingPreference)

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. You can specify this option only when the travelMode is DRIVE or TWO_WHEELER, otherwise the request fails.
polylineQuality

enum (PolylineQuality)

Optional. Specifies your preference for the quality of the polyline.
polylineEncoding

enum (PolylineEncoding)

Optional. Specifies the preferred encoding for the polyline.
departureTime

string (Timestamp format)

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.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
computeAlternativeRoutes

boolean

Optional. Specifies whether to calculate alternate routes in addition to the route. No alternative routes are returned for requests that have intermediate waypoints.
routeModifiers

object (RouteModifiers)

Optional. A set of conditions to satisfy that affect the way routes are calculated.
languageCode

string

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 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.
regionCode

string

Optional. The region code, specified as a ccTLD ("top-level domain") two-character value. For more information see https://en.wikipedia.org/wiki/List_of_Internet_top-level_domains#Country_code_top-level_domains
units

enum (Units)

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.
requestedReferenceRoutes[]

enum (ReferenceRoute)

Optional. Specifies what reference routes to calculate as part of the request in addition to the default route. A reference route is a route with a different route calculation objective than the default route. For example a FUEL_EFFICIENT reference route calculation takes into account various parameters that would generate an optimal fuel efficient route.
extraComputations[]

enum (ExtraComputation)

Optional. A list of extra computations which may be used to complete the request. Note: These extra computations may return extra fields on the response. These extra fields must also be specified in the field mask to be returned in the response.

Response body

If successful, the response body contains data with the following structure:

v2.computeRoutes the response message.

JSON representation 
{
  "routes": [
    {
      object (Route)
    }
  ],
  "fallbackInfo": {
    object (FallbackInfo)
  },
  "geocodingResults": {
    object (GeocodingResults)
  }
}
Fields
routes[]

object (Route)

Contains an array of computed routes (up to three) when you specify compute_alternatives_routes, and contains just one route when you don't. When this array contains multiple entries, the first one is the most recommended route. If the array is empty, then it means no route could be found.
fallbackInfo

object (FallbackInfo)

In some cases when the server is not able to compute the route results with all of the input preferences, it may fallback to using a different way of computation. When fallback mode is used, this field contains detailed info about the fallback response. Otherwise this field is unset.
geocodingResults

object (GeocodingResults)

Contains geocoding response info for waypoints specified as addresses.

PolylineQuality

A set of values that specify the quality of the polyline.

Enums
POLYLINE_QUALITY_UNSPECIFIED No polyline quality preference specified. Defaults to OVERVIEW.
HIGH_QUALITY Specifies a high-quality polyline - which is composed using more points than OVERVIEW, at the cost of increased response size. Use this value when you need more precision.
OVERVIEW Specifies an overview polyline - which is composed using a small number of points. Use this value when displaying an overview of the route. Using this option has a lower request latency compared to using the HIGH_QUALITY option.

PolylineEncoding

Specifies the preferred type of polyline to be returned.

Enums
POLYLINE_ENCODING_UNSPECIFIED No polyline type preference specified. Defaults to ENCODED_POLYLINE.
ENCODED_POLYLINE Specifies a polyline encoded using the polyline encoding algorithm.
GEO_JSON_LINESTRING Specifies a polyline using the GeoJSON LineString format

Units

A set of values that specify the unit of measure used in the display.

Enums
UNITS_UNSPECIFIED Units of measure not specified. Defaults to the unit of measure inferred from the request.
METRIC Metric units of measure.
IMPERIAL Imperial (English) units of measure.

ReferenceRoute

A supported reference route on the ComputeRoutesRequest.

Enums
REFERENCE_ROUTE_UNSPECIFIED Not used. Requests containing this value fail.
FUEL_EFFICIENT Fuel efficient route. Routes labeled with this value are determined to be optimized for parameters such as fuel consumption.

ExtraComputation

Extra computations to perform while completing the request.

Enums
EXTRA_COMPUTATION_UNSPECIFIED Not used. Requests containing this value will fail.
TOLLS Toll information for the route(s).
FUEL_CONSUMPTION Estimated fuel consumption for the route(s).
TRAFFIC_ON_POLYLINE Traffic aware polylines for the route(s).

Route

Encapsulates a route, which consists of a series of connected road segments that join beginning, ending, and intermediate waypoints.

JSON representation 
{
  "routeLabels": [
    enum (RouteLabel)
  ],
  "legs": [
    {
      object (RouteLeg)
    }
  ],
  "distanceMeters": integer,
  "duration": string,
  "staticDuration": string,
  "polyline": {
    object (Polyline)
  },
  "description": string,
  "warnings": [
    string
  ],
  "viewport": {
    object (Viewport)
  },
  "travelAdvisory": {
    object (RouteTravelAdvisory)
  },
  "routeToken": string
}
Fields
routeLabels[]

enum (RouteLabel)

Labels for the Route that are useful to identify specific properties of the route to compare against others.
legs[]

object (RouteLeg)

A collection of legs (path segments between waypoints) that make-up the route. Each leg corresponds to the trip between two non-via Waypoints. For example, a route with no intermediate waypoints has only one leg. A route that includes one non-via intermediate waypoint has two legs. A route that includes one via intermediate waypoint has one leg. The order of the legs matches the order of Waypoints from origin to intermediates to destination.
distanceMeters

integer

The travel distance of the route, in meters.
duration

string (Duration format)

The length of time needed to navigate the route. If you set the routingPreference to TRAFFIC_UNAWARE, then this value is the same as staticDuration. If you set the routingPreference to either TRAFFIC_AWARE or TRAFFIC_AWARE_OPTIMAL, then this value is calculated taking traffic conditions into account.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
staticDuration

string (Duration format)

The duration of traveling through the route without taking traffic conditions into consideration.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
polyline

object (Polyline)

The overall route polyline. This polyline will be the combined polyline of all legs.
description

string

A description of the route.
warnings[]

string

An array of warnings to show when displaying the route.
viewport

object (Viewport)

The viewport bounding box of the polyline.
travelAdvisory

object (RouteTravelAdvisory)

Additional information about the route.
routeToken

string

Web-safe base64 encoded route token that can be passed to NavigationSDK, which allows the Navigation SDK to reconstruct the route during navigation, and in the event of rerouting honor the original intention when Routes v2.computeRoutes is called. Customers should treat this token as an opaque blob. NOTE: Route.route_token is only available for requests that have set ComputeRoutesRequest.routing_preference to TRAFFIC_AWARE or TRAFFIC_AWARE_OPTIMAL. Route.route_token is also not supported for requests that have Via waypoints.

RouteLabel

Labels for the Route that are useful to identify specific properties of the route to compare against others.

Enums
ROUTE_LABEL_UNSPECIFIED Default - not used.
DEFAULT_ROUTE The default "best" route returned for the route computation.
DEFAULT_ROUTE_ALTERNATE An alternative to the default "best" route. Routes like this will be returned when computeAlternativeRoutes is specified.
FUEL_EFFICIENT Fuel efficient route. Routes labeled with this value are determined to be optimized for Eco parameters such as fuel consumption.

RouteLeg

Encapsulates a segment between non-via waypoints.

JSON representation 
{
  "distanceMeters": integer,
  "duration": string,
  "staticDuration": string,
  "polyline": {
    object (Polyline)
  },
  "startLocation": {
    object (Location)
  },
  "endLocation": {
    object (Location)
  },
  "steps": [
    {
      object (RouteLegStep)
    }
  ],
  "travelAdvisory": {
    object (RouteLegTravelAdvisory)
  }
}
Fields
distanceMeters

integer

The travel distance of the route leg, in meters.
duration

string (Duration format)

The length of time needed to navigate the leg. If the route_preference is set to TRAFFIC_UNAWARE, then this value is the same as staticDuration. If the route_preference is either TRAFFIC_AWARE or TRAFFIC_AWARE_OPTIMAL, then this value is calculated taking traffic conditions into account.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
staticDuration

string (Duration format)

The duration of traveling through the leg, calculated without taking traffic conditions into consideration.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
polyline

object (Polyline)

The overall polyline for this leg. This includes that each step's polyline.
startLocation

object (Location)

The start location of this leg. This might be different from the provided origin. For example, when the provided origin is not near a road, this is a point on the road.
endLocation

object (Location)

The end location of this leg. This might be different from the provided destination. For example, when the provided destination is not near a road, this is a point on the road.
steps[]

object (RouteLegStep)

An array of steps denoting segments within this leg. Each step represents one navigation instruction.
travelAdvisory

object (RouteLegTravelAdvisory)

Encapsulates the additional information that the user should be informed about, such as possible traffic zone restriction etc. on a route leg.

Polyline

Encapsulates an encoded polyline.

JSON representation 
{

  // Union field polyline_type can be only one of the following:
  "encodedPolyline": string,
  "geoJsonLinestring": {
    object
  }
  // End of list of possible types for union field polyline_type.
}
Fields
Union field polyline_type. Encapsulates the type of polyline. Defaults to encoded_polyline. polyline_type can be only one of the following:
encodedPolyline

string

The string encoding of the polyline using the polyline encoding algorithm
geoJsonLinestring

object (Struct format)

Specifies a polyline using the GeoJSON LineString format

RouteLegStep

Encapsulates a segment of a RouteLeg. A step corresponds to a single navigation instruction. Route legs are made up of steps.

JSON representation 
{
  "distanceMeters": integer,
  "staticDuration": string,
  "polyline": {
    object (Polyline)
  },
  "startLocation": {
    object (Location)
  },
  "endLocation": {
    object (Location)
  },
  "navigationInstruction": {
    object (NavigationInstruction)
  },
  "travelAdvisory": {
    object (RouteLegStepTravelAdvisory)
  }
}
Fields
distanceMeters

integer

The travel distance of this step, in meters. In some circumstances, this field might not have a value.
staticDuration

string (Duration format)

The duration of travel through this step without taking traffic conditions into consideration. In some circumstances, this field might not have a value.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
polyline

object (Polyline)

The polyline associated with this step.
startLocation

object (Location)

The start location of this step.
endLocation

object (Location)

The end location of this step.
navigationInstruction

object (NavigationInstruction)

Navigation instructions.
travelAdvisory

object (RouteLegStepTravelAdvisory)

Encapsulates the additional information that the user should be informed about, such as possible traffic zone restriction on a leg step.

Maneuver

A set of values that specify the navigation action to take for the current step (e.g., turn left, merge, straight, etc.).

Enums
MANEUVER_UNSPECIFIED Not used.
TURN_SLIGHT_LEFT Turn slightly to the left.
TURN_SHARP_LEFT Turn sharply to the left.
UTURN_LEFT Make a left u-turn.
TURN_LEFT Turn left.
TURN_SLIGHT_RIGHT Turn slightly to the right.
TURN_SHARP_RIGHT Turn sharply to the right.
UTURN_RIGHT Make a right u-turn.
TURN_RIGHT Turn right.
STRAIGHT Go straight.
RAMP_LEFT Take the left ramp.
RAMP_RIGHT Take the right ramp.
MERGE Merge into traffic.
FORK_LEFT Take the left fork.
FORK_RIGHT Take the right fork.
FERRY Take the ferry.
FERRY_TRAIN Take the train leading onto the ferry.
ROUNDABOUT_LEFT Turn left at the roundabout.
ROUNDABOUT_RIGHT Turn right at the roundabout.

RouteLegStepTravelAdvisory

Encapsulates the additional information that the user should be informed about, such as possible traffic zone restriction on a leg step.

JSON representation 
{
  "speedReadingIntervals": [
    {
      object (SpeedReadingInterval)
    }
  ]
}
Fields
speedReadingIntervals[]

object (SpeedReadingInterval)

NOTE: This field is not currently populated.

RouteLegTravelAdvisory

Encapsulates the additional information that the user should be informed about, such as possible traffic zone restriction etc. on a route leg.

JSON representation 
{
  "tollInfo": {
    object (TollInfo)
  },
  "speedReadingIntervals": [
    {
      object (SpeedReadingInterval)
    }
  ]
}
Fields
tollInfo

object (TollInfo)

Encapsulates information about tolls on the specific RouteLeg. This field is only populated if we expect there are tolls on the RouteLeg. If this field is set but the estimatedPrice subfield is not populated, we expect that road contains tolls but we do not know an estimated price. If this field does not exist, then there is no toll on the RouteLeg.
speedReadingIntervals[]

object (SpeedReadingInterval)

Speed reading intervals detailing traffic density. Applicable in case of TRAFFIC_AWARE and TRAFFIC_AWARE_OPTIMAL routing preferences. The intervals cover the entire polyline of the RouteLg without overlap. The start point of a specified interval is the same as the end point of the preceding interval.

Example:

polyline: A ---- B ---- C ---- D ---- E ---- F ---- G
speedReadingIntervals: [A,C), [C,D), [D,G).

Viewport

A latitude-longitude viewport, represented as two diagonally opposite low and high points. A viewport is considered a closed region, i.e. it includes its boundary. The latitude bounds must range between -90 to 90 degrees inclusive, and the longitude bounds must range between -180 to 180 degrees inclusive. Various cases include:

  • If low = high, the viewport consists of that single point.

  • If low.longitude > high.longitude, the longitude range is inverted (the viewport crosses the 180 degree longitude line).

  • If low.longitude = -180 degrees and high.longitude = 180 degrees, the viewport includes all longitudes.

  • If low.longitude = 180 degrees and high.longitude = -180 degrees, the longitude range is empty.

  • If low.latitude > high.latitude, the latitude range is empty.

Both low and high must be populated, and the represented box cannot be empty (as specified by the definitions above). An empty viewport will result in an error.

For example, this viewport fully encloses New York City:

{ "low": { "latitude": 40.477398, "longitude": -74.259087 }, "high": { "latitude": 40.91618, "longitude": -73.70018 } }

JSON representation 
{
  "low": {
    object (LatLng)
  },
  "high": {
    object (LatLng)
  }
}
Fields
low

object (LatLng)

Required. The low point of the viewport.
high

object (LatLng)

Required. The high point of the viewport.

GeocodingResults

Contains GeocodedWaypoints for origin, destination and intermediate waypoints. Only populated for address waypoints.

JSON representation 
{
  "origin": {
    object (GeocodedWaypoint)
  },
  "destination": {
    object (GeocodedWaypoint)
  },
  "intermediates": [
    {
      object (GeocodedWaypoint)
    }
  ]
}
Fields
origin

object (GeocodedWaypoint)

Origin geocoded waypoint.
destination

object (GeocodedWaypoint)

Destination geocoded waypoint.
intermediates[]

object (GeocodedWaypoint)

A list of intermediate geocoded waypoints each containing an index field that corresponds to the zero-based position of the waypoint in the order they were specified in the request.

GeocodedWaypoint

Details about the locations used as waypoints. Only populated for address waypoints. Includes details about the geocoding results for the purposes of determining what the address was geocoded to.

JSON representation 
{
  "geocoderStatus": {
    object (Status)
  },
  "type": [
    string
  ],
  "partialMatch": boolean,
  "placeId": string,
  "intermediateWaypointRequestIndex": integer
}
Fields
geocoderStatus

object (Status)

Indicates the status code resulting from the geocoding operation.
type[]

string

The type(s) of the result, in the form of zero or more type tags. Supported types: https://developers.google.com/maps/documentation/geocoding/requests-geocoding#Types
partialMatch

boolean

Indicates that the geocoder did not return an exact match for the original request, though it was able to match part of the requested address. You may wish to examine the original request for misspellings and/or an incomplete address.
placeId

string

The place ID for this result.
intermediateWaypointRequestIndex

integer

The index of the corresponding intermediate waypoint in the request. Only populated if the corresponding waypoint is an intermediate waypoint.