Вы можете использовать метод ComputeRouteMatrix
для HTTP-запроса и ответа или с любым языком, поддерживающим gRPC, включая Java и Go.
HTTP-примеры
В следующем примере показаны HTTP-запрос и ответ ComputeRouteMatrix
.
Запрос:
curl -X POST -d '{
"origins": [
{
"waypoint": { "location": { "latLng": {
"latitude": 37.420761,
"longitude": -122.081356,
}}},
"routeModifiers": { "avoidFerries": true}
},
{
"waypoint": { "location": { "latLng": {
"latitude": 37.403184,
"longitude": -122.097371,
}}},
"routeModifiers": { "avoidFerries": true}
}
],
"destinations": [
{
"waypoint": { "location": { "latLng": {
"latitude": 37.420999,
"longitude": -122.086894,
}}}
},
{
"waypoint": { "location": { "latLng": {
"latitude": 37.383047,
"longitude": -122.044651,
}}}
}
],
"travelMode": "DRIVE",
"routingPreference": "TRAFFIC_AWARE"
}' -H 'Content-Type: application/json' -H 'X-Goog-Api-Key: <YOUR_API_KEY>' -H 'X-Goog-FieldMask: originIndex,destinationIndex,duration,distanceMeters,status' 'https://routespreferred.googleapis.com/v1alpha:computeRouteMatrix'
Ответ:
[{
"status": {},
"distanceMeters": 827,
"duration": "139s"
}
,
{
"originIndex": 1,
"destinationIndex": 1,
"status": {},
"distanceMeters": 5597,
"duration": "383s"
}
,
{
"originIndex": 1,
"status": {},
"distanceMeters": 2926,
"duration": "316s"
}
,
{
"destinationIndex": 1,
"status": {},
"distanceMeters": 8602,
"duration": "613s"
}
]
В следующем примере показаны HTTP-запрос и ответ ComputeRouteMatrix
для расчета ориентировочной стоимости дорожных сборов.
Запрос:
curl -X POST -d '{
"origins": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.7020056,
"longitude":-122.3479236,
}}},
"routeModifiers": {
"vehicleInfo":{
"emissionType": "GASOLINE"
},
"tollPasses": [
"US_MA_EZPASSMA",
"US_WA_GOOD_TO_GO"
]
}
}],
"destinations": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.6192234,
"longitude": -122.1676792
}}}
}],
"travelMode": "DRIVE",
"routingPreference": "TRAFFIC_AWARE"
}' -H 'Content-Type: application/json' -H 'X-Goog-Api-Key: <YOUR_API_KEY>' -H 'X-Goog-FieldMask: originIndex,destinationIndex,travelAdvisory,duration,distanceMeters,status' 'https://routespreferred.googleapis.com/v1alpha:computeRouteMatrix'
Ответ:
[{
"status": {},
"distanceMeters": 22498,
"duration": "1251s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "2",
"nanos": 700000000
}
]
}
}
}
]
Примеры Java и Go
В следующих примерах показано, как вызвать метод ComputeRouteMatrix
с помощью Java или Go. Инструкции по сборке см. в соответствующих репозиториях Java и Go на Github.
Ява
package com.example; import com.google.maps.routes.v1.*; import com.google.type.LatLng; import io.grpc.CallOptions; import io.grpc.Channel; import io.grpc.ClientCall; import io.grpc.ClientInterceptor; import io.grpc.ClientInterceptors; import io.grpc.ForwardingClientCall; import io.grpc.Metadata; import io.grpc.MethodDescriptor; import io.grpc.StatusRuntimeException; import io.grpc.netty.NettyChannelBuilder; import java.util.Iterator; import java.util.concurrent.TimeUnit; import java.util.logging.Level; import java.util.logging.Logger; public class RoutesPreferredClient { // For more detail on inserting API keys, see: // https://cloud.google.com/endpoints/docs/grpc/restricting-api-access-with-api-keys#java // For more detail on system parameters (such as FieldMask), see: // https://cloud.google.com/apis/docs/system-parameters private static final class RoutesPreferredInterceptor implements ClientInterceptor { private final String apiKey; private static final Logger logger = Logger.getLogger(RoutesPreferredInterceptor.class.getName()); private static Metadata.Key<String> API_KEY_HEADER = Metadata.Key.of("x-goog-api-key", Metadata.ASCII_STRING_MARSHALLER); private static Metadata.Key<String> FIELD_MASK_HEADER = Metadata.Key.of("x-goog-fieldmask", Metadata.ASCII_STRING_MARSHALLER); public RoutesPreferredInterceptor(String apiKey) { this.apiKey = apiKey; } @Override public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall(MethodDescriptor<ReqT, RespT> method, CallOptions callOptions, Channel next) { logger.info("Intercepted " + method.getFullMethodName()); ClientCall<ReqT, RespT> call = next.newCall(method, callOptions); call = new ForwardingClientCall.SimpleForwardingClientCall<ReqT, RespT>(call) { @Override public void start(Listener<RespT> responseListener, Metadata headers) { headers.put(API_KEY_HEADER, apiKey); // Note that setting the field mask to * is OK for testing, but discouraged in // production. // For example, for ComputeRoutes, set the field mask to // "routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline" // in order to get the route distances, durations, and encoded polylines. headers.put(FIELD_MASK_HEADER, "*"); super.start(responseListener, headers); } }; return call; } } private static final Logger logger = Logger.getLogger(RoutesPreferredClient.class.getName()); private final RoutesPreferredGrpc.RoutesPreferredBlockingStub blockingStub; public RoutesPreferredClient(Channel channel) { blockingStub = RoutesPreferredGrpc.newBlockingStub(channel); } public static Waypoint createWaypointForLatLng(double lat, double lng) { return Waypoint.newBuilder() .setLocation(Location.newBuilder().setLatLng(LatLng.newBuilder().setLatitude(lat).setLongitude(lng))) .build(); } public void computeRoutes() { ComputeRoutesRequest request = ComputeRoutesRequest.newBuilder() .setOrigin(createWaypointForLatLng(37.420761, -122.081356)) .setDestination(createWaypointForLatLng(37.420999, -122.086894)).setTravelMode(RouteTravelMode.DRIVE) .setRoutingPreference(RoutingPreference.TRAFFIC_AWARE).setComputeAlternativeRoutes(true) .setUnits(Units.METRIC).setLanguageCode("en-us") .setRouteModifiers( RouteModifiers.newBuilder().setAvoidTolls(false).setAvoidHighways(true).setAvoidFerries(true)) .setPolylineQuality(PolylineQuality.OVERVIEW).build(); ComputeRoutesResponse response; try { logger.info("About to send request: " + request.toString()); response = blockingStub.withDeadlineAfter(2000, TimeUnit.MILLISECONDS).computeRoutes(request); } catch (StatusRuntimeException e) { logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus()); return; } logger.info("Response: " + response.toString()); } public void computeRouteMatrix() { ComputeRouteMatrixRequest request = ComputeRouteMatrixRequest.newBuilder() .addOrigins(RouteMatrixOrigin.newBuilder().setWaypoint(createWaypointForLatLng(37.420761, -122.081356)) .setRouteModifiers(RouteModifiers.newBuilder().setAvoidTolls(false).setAvoidHighways(true) .setAvoidFerries(true))) .addOrigins(RouteMatrixOrigin.newBuilder().setWaypoint(createWaypointForLatLng(37.403184, -122.097371))) .addDestinations(RouteMatrixDestination.newBuilder() .setWaypoint(createWaypointForLatLng(37.420999, -122.086894))) .addDestinations(RouteMatrixDestination.newBuilder() .setWaypoint(createWaypointForLatLng(37.383047, -122.044651))) .setTravelMode(RouteTravelMode.DRIVE).setRoutingPreference(RoutingPreference.TRAFFIC_AWARE).build(); Iterator<RouteMatrixElement> elements; try { logger.info("About to send request: " + request.toString()); elements = blockingStub.withDeadlineAfter(2000, TimeUnit.MILLISECONDS).computeRouteMatrix(request); } catch (StatusRuntimeException e) { logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus()); return; } while (elements.hasNext()) { logger.info("Element response: " + elements.next().toString()); } } public static void main(String[] args) throws Exception { String apiKey = System.getenv("GOOGLE_MAPS_API_KEY"); // The standard TLS port is 443 Channel channel = NettyChannelBuilder.forAddress("routespreferred.googleapis.com", 443).build(); channel = ClientInterceptors.intercept(channel, new RoutesPreferredInterceptor(apiKey)); RoutesPreferredClient client = new RoutesPreferredClient(channel); client.computeRoutes(); client.computeRouteMatrix(); } }
Идти
package main import ( "context" "crypto/tls" "io" "log" "os" "time" "github.com/golang/protobuf/proto" v1 "google.golang.org/genproto/googleapis/maps/routes/v1" "google.golang.org/genproto/googleapis/type/latlng" "google.golang.org/grpc" "google.golang.org/grpc/credentials" "google.golang.org/grpc/metadata" ) const ( serverAddr = "routespreferred.googleapis.com:443" // Note that setting the field mask to * is OK for testing, but discouraged in // production. // For example, for ComputeRoutes, set the field mask to // "routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline" // in order to get the route distances, durations, and encoded polylines. fieldMask = "*" ) func createWaypoint(lat float64, lng float64) *v1.Waypoint { return &v1.Waypoint{LocationType: &v1.Waypoint_Location{ Location: &v1.Location{ LatLng: &latlng.LatLng{Latitude: lat, Longitude: lng}, }, }} } func callComputeRoutes(client v1.RoutesPreferredClient, ctx *context.Context) { request := v1.ComputeRoutesRequest{ Origin: createWaypoint(37.420761, -122.081356), Destination: createWaypoint(37.420999, -122.086894), TravelMode: v1.RouteTravelMode_DRIVE, RoutingPreference: v1.RoutingPreference_TRAFFIC_AWARE, ComputeAlternativeRoutes: true, Units: v1.Units_METRIC, LanguageCode: "en-us", RouteModifiers: &v1.RouteModifiers{ AvoidTolls: false, AvoidHighways: true, AvoidFerries: true, }, PolylineQuality: v1.PolylineQuality_OVERVIEW, } marshaler := proto.TextMarshaler{} log.Printf("Sending request: \n%s", marshaler.Text(&request)) result, err := client.ComputeRoutes(*ctx, &request) if err != nil { log.Fatalf("Failed to call ComputeRoutes: %v", err) } log.Printf("Result: %s", marshaler.Text(result)) } func callComputeRouteMatrix(client v1.RoutesPreferredClient, ctx *context.Context) { request := v1.ComputeRouteMatrixRequest{ Origins: []*v1.RouteMatrixOrigin{ {Waypoint: createWaypoint(37.420761, -122.081356), RouteModifiers: &v1.RouteModifiers{ AvoidTolls: false, AvoidHighways: true, AvoidFerries: true, }}, {Waypoint: createWaypoint(37.403184, -122.097371)}, }, Destinations: []*v1.RouteMatrixDestination{ {Waypoint: createWaypoint(37.420999, -122.086894)}, {Waypoint: createWaypoint(37.383047, -122.044651)}, }, TravelMode: v1.RouteTravelMode_DRIVE, RoutingPreference: v1.RoutingPreference_TRAFFIC_AWARE, } marshaler := proto.TextMarshaler{} log.Printf("Sending request: \n%s", marshaler.Text(&request)) stream, err := client.ComputeRouteMatrix(*ctx, &request) if err != nil { log.Fatalf("Failed to call ComputeRouteMatrix: %v", err) } for { element, err := stream.Recv() if err == io.EOF { break } if err != nil { log.Fatalf("Received error in ComputeRouteMatrix stream: %v", err) } log.Printf("Element: %s\n", marshaler.Text(element)) } } func main() { config := tls.Config{} conn, err := grpc.Dial(serverAddr, grpc.WithTransportCredentials(credentials.NewTLS(&config))) if err != nil { log.Fatalf("Failed to connect: %v", err) } defer conn.Close() client := v1.NewRoutesPreferredClient(conn) ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second) ctx = metadata.AppendToOutgoingContext(ctx, "X-Goog-Api-Key", os.Getenv("GOOGLE_MAPS_API_KEY")) ctx = metadata.AppendToOutgoingContext(ctx, "X-Goog-Fieldmask", fieldMask) defer cancel() callComputeRoutes(client, &ctx) callComputeRouteMatrix(client, &ctx) }
Пример расчета платы за проезд
В следующем примере метод computeRouteMatrix
используется для возврата информации о платных дорогах по маршруту с ориентировочной ценой при использовании платного пропуска.
Эта функция включается с помощью маски поля routes.travelAdvisory.tollInfo
, указанной в запросе. Платный проезд указывается в поле route_modifiers
. Возвращенная стоимость проезда основана на цене, используемой указанным пропуском. Если указано более одного прохода, возвращается самая дешевая цена.
Запрос:
curl -X POST -d '{
"origins": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.7020056,
"longitude":-122.3479236,
}}},
"routeModifiers": {
"vehicleInfo":{
"emissionType": "GASOLINE"
},
"tollPasses": [
"US_MA_EZPASSMA",
"US_WA_GOOD_TO_GO"
]
}
}],
"destinations": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.6192234,
"longitude": -122.1676792
}}}
}],
"travelMode": "DRIVE",
"routingPreference": "TRAFFIC_AWARE"
}' \
-H 'Content-Type: application/json' \
-H 'X-Goog-Api-Key: <YOUR_API_KEY>' \
-H 'X-Goog-FieldMask: originIndex,destinationIndex,travelAdvisory,duration,distanceMeters,status' 'https://routespreferred.googleapis.com/v1alpha:computeRouteMatrix'
Ответ:
[{
"status": {},
"distanceMeters": 22495,
"duration": "1446s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "4",
"nanos": 300000000
}
]
}
}
}]