אפשר להשתמש ב-method ComputeRouteMatrix
כדי ליצור בקשת HTTP ותגובה
או בכל שפה שתומכת ב-gRPC, כולל Java ו-Go.
דוגמאות ל-HTTP
הדוגמה הבאה מציגה בקשת HTTP ותגובה ComputeRouteMatrix
.
בקשה:
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'
תשובה:
[{
"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"
}
]
בדוגמה הבאה מוצגת בקשה ותגובה של HTTP ComputeRouteMatrix
לחישוב מחיר האגרה המשוער.
בקשה:
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'
תשובה:
[{
"status": {},
"distanceMeters": 22498,
"duration": "1251s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "2",
"nanos": 700000000
}
]
}
}
}
]
דוגמאות ל-Java ו-Go
הדוגמאות הבאות מראות איך לקרוא ל-method ComputeRouteMatrix
באמצעות Java
או 'עבור'. אפשר לעיין בפונקציות המתאימות
Java ו
קחו GitHub
הוראות ל-build.
Java
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(); } }
Go
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) }
דוגמה לחישוב עמלות אגרה
הדוגמה הבאה משתמשת
computeRouteMatrix
שיטה להחזרת מידע על כבישי אגרה במסלול עם עלות משוערת
המחיר כשנעשה שימוש בכרטיס אגרה.
התכונה הזו פועלת עם אנונימיזציה של השדות routes.travelAdvisory.tollInfo
שצוינו בבקשה. מינוי לכביש אגרה מצוין בroute_modifiers
השדה הזה. מחיר האגרה שמוחזר מבוסס על התמחור שמשמש את
שעבר בהצלחה. אם יצוין יותר מכרטיס אחד, האפשרות הזולה ביותר
המחיר מוחזר.
בקשה:
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'
תשובה:
[{
"status": {},
"distanceMeters": 22495,
"duration": "1446s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "4",
"nanos": 300000000
}
]
}
}
}]