É possível usar o método ComputeCustomRoutes
em uma solicitação e uma resposta HTTP
ou com qualquer linguagem compatível com gRPC, incluindo Java e Go.
Exemplos de HTTP
O exemplo a seguir demonstra um exemplo de solicitação e resposta curl.
Solicitação:
curl -X POST -d '{
"origin":{
"location":{
"latLng":{
"latitude":37.419734,
"longitude":-122.0827784
}
}
},
"destination":{
"location":{
"latLng":{
"latitude":37.417670,
"longitude":-122.079595
}
}
},
"travelMode":"DRIVE",
"routingPreference":"TRAFFIC_AWARE",
"routeObjective": {
"rateCard":{
"costPerMinute":{
"value":1.1
},
"costPerKm":{
"value":2.2
}
}
}
}' \
-H 'Content-Type: application/json' \
-H 'X-Goog-Api-Key: <YOUR_API_KEY>' \
-H 'X-Goog-FieldMask: routes.route.distanceMeters,routes.route.duration,routes.token,routes.route.travelAdvisory.tollInfo' \
'https://routespreferred.googleapis.com/v1alpha:computeCustomRoutes'
Resposta:
{
"routes": [
{
"route": {
"distanceMeters": 987,
"duration": "247s",
"travelAdvisory": {
"tollInfo": {}
}
},
"token": "CocCCnYKCNOX2XMIWqf2EihazE0WzZ87txlU4F74nQiWxZpgRgOzf3TMHUm1sVpY4APnvf_BWoEYGibs64nuCxYcsQEXqQjaChCLGOkBHNseoyoAmAG1CxbkG58hEhJ4FiIBKkIJbwqHAz2qAhZfSgivvZI-AACAP3gBEAQaigEKhwEKLAohChYIAxISCgcQARiAwtcvEgcQAhiAhK9fEQAAAAAAAPA_EareoBH6vShAEg4IABADEAYYAkIEGgIIBRoGCgQIAhACIj8KNjIwMjAtMDYtMTB8MTI6NTY6MzcuODg3OTEzLTA3fDEwLjk5LjE5OS4xNnwtMTA3Mjc4OTI3MhCHwajvnhs"
}
]
}
O token de rota na resposta ComputeCustomRoutes
precisa ser transmitido
ao SDK do Navigation para iniciar uma sessão de navegação, que tenta
para seguir a rota retornada pela API Routes Preferred.
Os tokens de rota não expiram, mas, devido às condições dinâmicas das vias, as rotas geradas
com um determinado token pode ser diferente da rota original. Nós fortemente
recomendamos usar o token de rota alguns minutos após a geração dele.
Para saber mais sobre tokens de rota, consulte o SDK do Navigation para Android e do SDK do Navigation para iOS:
Exemplos de Java e Go
Os exemplos a seguir mostram como chamar o método ComputeCustomRoutes
com Java.
ou Go. Consulte a
Java e
GitHub Go
repositórios para instruções de build.
Java
package com.example; import com.google.maps.routes.v1.ComputeCustomRoutesRequest; import com.google.maps.routes.v1.ComputeCustomRoutesResponse; import com.google.maps.routes.v1.Location; import com.google.maps.routes.v1.PolylineQuality; import com.google.maps.routes.v1.RouteModifiers; import com.google.maps.routes.v1.RouteObjective; import com.google.maps.routes.v1.RouteObjective.RateCard; import com.google.maps.routes.v1.RouteObjective.RateCard.MonetaryCost; import com.google.maps.routes.v1.RouteTravelMode; import com.google.maps.routes.v1.RoutingPreference; import com.google.maps.routes.v1.Units; import com.google.maps.routes.v1.Waypoint; import com.google.maps.routes.v1alpha.RoutesAlphaGrpc; 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.concurrent.TimeUnit; import java.util.logging.Level; import java.util.logging.Logger; public class RoutesPreferredCustomRoutesClient { // 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 ComputeCustomRoutes, set the field mask to // "routes.route.duration,routes.route.distanceMeters,routes.route.polyline" // 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(RoutesPreferredCustomRoutesClient.class.getName()); private final RoutesAlphaGrpc.RoutesAlphaBlockingStub blockingStub; public RoutesPreferredCustomRoutesClient(Channel channel) { blockingStub = RoutesAlphaGrpc.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 computeCustomRoutes() { ComputeCustomRoutesRequest request = ComputeCustomRoutesRequest.newBuilder() .setOrigin(createWaypointForLatLng(37.420761, -122.081356)) .setDestination(createWaypointForLatLng(37.420999, -122.086894)) .setRouteObjective( RouteObjective.newBuilder() .setRateCard( RateCard.newBuilder() .setCostPerMinute(MonetaryCost.newBuilder().setValue(1.1)))) .setTravelMode(RouteTravelMode.DRIVE) .setRoutingPreference(RoutingPreference.TRAFFIC_AWARE) .setUnits(Units.METRIC) .setLanguageCode("en-us") .setRouteModifiers( RouteModifiers.newBuilder() .setAvoidTolls(false) .setAvoidHighways(true) .setAvoidFerries(true)) .setPolylineQuality(PolylineQuality.OVERVIEW) .build(); ComputeCustomRoutesResponse response; try { logger.info("About to send request: " + request.toString()); response = blockingStub.withDeadlineAfter(2000, TimeUnit.MILLISECONDS).computeCustomRoutes(request); } catch (StatusRuntimeException e) { logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus()); return; } logger.info("Response: " + response.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)); RoutesPreferredCustomRoutesClient client = new RoutesPreferredCustomRoutesClient(channel); client.computeCustomRoutes(); } }
Go
package main import ( "context" "crypto/tls" "log" "os" "time" "github.com/golang/protobuf/proto" v1 "google.golang.org/genproto/googleapis/maps/routes/v1" v1alpha "google.golang.org/genproto/googleapis/maps/routes/v1alpha" "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 callComputeCustomRoutes(client v1alpha.RoutesAlphaClient, ctx *context.Context) { request := v1.ComputeCustomRoutesRequest{ Origin: createWaypoint(37.420761, -122.081356), Destination: createWaypoint(37.420999, -122.086894), RouteObjective: &v1.RouteObjective{ Objective: &v1.RouteObjective_RateCard_{ RateCard: &v1.RouteObjective_RateCard{ CostPerMinute: &v1.RouteObjective_RateCard_MonetaryCost{Value: 1.1}, }, }, }, TravelMode: v1.RouteTravelMode_DRIVE, RoutingPreference: v1.RoutingPreference_TRAFFIC_AWARE, 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.ComputeCustomRoutes(*ctx, &request) if err != nil { log.Fatalf("Failed to call ComputeCustomRoutes: %v", err) } log.Printf("Result: %s", marshaler.Text(result)) } 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 := v1alpha.NewRoutesAlphaClient(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() callComputeCustomRoutes(client, &ctx) }
Como calcular tarifas de pedágio
O exemplo a seguir usa
computeCustomRoutes
para retornar informações sobre pedágios em um trajeto com um valor
quando uma tag de pedágio é usada.
Este recurso é ativado com a máscara de campo routes.travelAdvisory.tollInfo
especificado na solicitação. O pedágio é especificado no route_modifiers
.
. O preço do pedágio retornado é baseado no preço usado pelo
cartão especificado. Se mais de um passe for especificado, o cartão mais barato
preço for retornado.
Solicitação:
curl -X POST -d '{
"origin":{
"location":{
"latLng":{
"latitude":47.7020056,
"longitude":-122.3479236
}
}
},
"destination":{
"location":{
"latLng":{
"latitude":47.6192234,
"longitude": -122.1676792
}
}
},
"travelMode":"DRIVE",
"routingPreference": "TRAFFIC_AWARE_OPTIMAL",
"routeModifiers":{
"vehicleInfo":{
"emissionType": "GASOLINE"
},
"tollPasses": [
"US_MA_EZPASSMA",
"US_WA_GOOD_TO_GO"
]
},
"routeObjective":{
"rateCard":{
"costPerMinute":{
"value":2
},
"costPerKm":{
"value": 1
},
"includeTolls": true
}
}
}'\
-H 'Content-Type: application/json' \
-H 'X-Goog-Api-Key: <YOUR_API_KEY>' \
-H 'X-Goog-FieldMask: routes.route.duration,routes.route.distanceMeters,routes.route.travelAdvisory.tollInfo,routes.route.legs.travelAdvisory.tollInfo,fallbackInfo' \
'https://routespreferred.googleapis.com/v1alpha:computeCustomRoutes'
Resposta:
{
"routes": [
{
"route": {
"legs": [
{
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "2",
"nanos": 700000000
}
]
}
}
}
],
"distanceMeters": 22496,
"duration": "1391s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "2",
"nanos": 700000000
}
]
}
}
]
}
O exemplo a seguir usa
computeCustomRoutes
para retornar informações sobre pedágios em um trajeto sem estimativa de preço.
Esse recurso também é ativado com o routes.travelAdvisory.tollInfo
máscara de campo especificada na solicitação. Esse é o comportamento esperado
da API se os preços dos pedágios não puderem ser estimados no momento da solicitação.
Geralmente, a presença do campo tollInfo
na resposta indica
se há pedágio no trajeto.
Se você especificar include_tolls
no routeObjective
, mas o Google não especificar
informações sobre preços de pedágios para o trajeto, a resposta contém
o substituto routeObjective
FALLBACK_RATECARD_WITHOUT_TOLL_PRICE_DATA.
Solicitação:
curl -X POST -d '{
"origin":{
"location":{
"latLng":{
"latitude":39.56227274,
"longitude":15.12008516
}
}
},
"destination":{
"location":{
"latLng":{
"latitude":39.56205718,
"longitude": 15.12250773
}
}
},
"travelMode":"DRIVE",
"routingPreference": "TRAFFIC_AWARE",
"routeObjective":{
"rateCard":{
"costPerMinute":{
"value":1
},
"costPerKm":{
"value": 1
},
"includeTolls": true
}
}
}' \
-H 'Content-Type: application/json' \
-H 'X-Goog-Api-Key: <YOUR_API_KEY>' \
-H 'X-Goog-FieldMask: routes.route.duration,routes.route.distanceMeters,routes.route.travelAdvisory.tollInfo,routes.route.legs.travelAdvisory.tollInfo.estimatedPrice,fallbackInfo' \
'https://routespreferred.googleapis.com/v1alpha:computeCustomRoutes'
Resposta:
{
"routes": [
{
"route": {
"legs": [
{
"travelAdvisory": {
"tollInfo": {}
}
}
],
"distanceMeters": 101,
"duration": "10s",
"travelAdvisory": {
"tollInfo": {}
}
}
}
],
"fallbackInfo": {
"routeObjective": "FALLBACK_RATECARD_WITHOUT_TOLL_PRICE_DATA"
}
}