Routes API-Clientbibliotheken

Auf dieser Seite werden die ersten Schritte mit den Clientbibliotheken für die Routes API beschrieben.

Weitere Informationen zu den Clientbibliotheken finden Sie unter Erläuterung zu Clientbibliotheken.

Clientbibliothek installieren

Java

Weitere Informationen finden Sie unter Java-Entwicklungsumgebung einrichten.

Siehe Google Routes API-Client für Java finden Sie die Installationsanleitungen.

Ok

go get cloud.google.com/go/maps
 Weitere Informationen finden Sie unter Go-Entwicklungsumgebung einrichten.

Eine Installationsanleitung finden Sie unter Google Routes API Client for Go.

Node.js

npm install @googlemaps/routing
 Weitere Informationen finden Sie unter Node.js-Entwicklungsumgebung einrichten

Die vollständige Installationsanleitung finden Sie unter Google Routes API-Client für Node.js.

Python

Weitere Informationen finden Sie unter Python-Entwicklungsumgebung einrichten

Die vollständige Installationsanleitung finden Sie unter Google Routes API-Client für Python.

.Net

Weitere Informationen finden Sie unter .NET-Entwicklungsumgebung einrichten.

Eine vollständige Installationsanleitung finden Sie unter Google Routes API-Client für .Net.

Authentifizierung einrichten

Wenn Sie Clientbibliotheken verwenden, authentifizieren Sie sich mit Standardanmeldedaten für Anwendungen (Application Default Credentials, ADC). Informationen zum Einrichten von ADC finden Sie unter Anmeldedaten für Standardanmeldedaten für Anwendungen bereitstellen. Informationen zur Verwendung von ADC mit Clientbibliotheken finden Sie unter Mit Clientbibliotheken authentifizieren.

Clientbibliothek verwenden

Java

Beispiel für Compute Routes: 

import com.google.maps.routing.v2.*;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
   
public class Main {
  public static void main(String[] arguments) throws IOException {
      RoutesSettings routesSettings = RoutesSettings.newBuilder()
              .setHeaderProvider(() -> {
                  Map<String, String> headers = new HashMap<>();
                  headers.put("X-Goog-FieldMask", "*");
                  return headers;
              }).build();
      RoutesClient routesClient = RoutesClient.create(routesSettings);
       
      ComputeRoutesResponse response = routesClient.computeRoutes(ComputeRoutesRequest.newBuilder()
              .setOrigin(Waypoint.newBuilder().setPlaceId("ChIJeRpOeF67j4AR9ydy_PIzPuM").build())
              .setDestination(Waypoint.newBuilder().setPlaceId("ChIJG3kh4hq6j4AR_XuFQnV0_t8").build())
              .setRoutingPreference(RoutingPreference.TRAFFIC_AWARE)
              .setTravelMode(RouteTravelMode.DRIVE).build());
      System.out.println("Response: " + response.toString());
  }
}

Beispiel für eine Routenmatrix: 

import com.google.api.gax.rpc.ServerStream;
import com.google.api.gax.rpc.ServerStreamingCallable;
import com.google.maps.routing.v2.*;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
   
public class Main {
  public static void main(String[] arguments) throws IOException {
      RoutesSettings routesSettings = RoutesSettings.newBuilder()
              .setHeaderProvider(() -> {
                  Map<String, String> headers = new HashMap<>();
                  headers.put("X-Goog-FieldMask", "*");
                  return headers;
              }).build();
      RoutesClient routesClient = RoutesClient.create(routesSettings);
       
      ServerStreamingCallable<ComputeRouteMatrixRequest, RouteMatrixElement> computeRouteMatrix = routesClient.computeRouteMatrixCallable();
      ServerStream<RouteMatrixElement> stream = computeRouteMatrix.call(ComputeRouteMatrixRequest.newBuilder()
              .addOrigins(RouteMatrixOrigin.newBuilder()
                      .setWaypoint(Waypoint.newBuilder().
                              setPlaceId("ChIJeRpOeF67j4AR9ydy_PIzPuM").build()))
              .addDestinations(RouteMatrixDestination.newBuilder()
                      .setWaypoint(Waypoint.newBuilder().setPlaceId("ChIJG3kh4hq6j4AR_XuFQnV0_t8").build())
                      .build()).setTravelMode(RouteTravelMode.DRIVE)
              .build());
      for (RouteMatrixElement element : stream) {
          System.out.println("Response : " + element.toString());
      }
  }
}

Ok

Beispiel für Compute Routes: 

import (
  "context"
  "fmt"
  "io"
  "os"
     
  routing "cloud.google.com/go/maps/routing/apiv2"
  "cloud.google.com/go/maps/routing/apiv2/routingpb"
  "google.golang.org/grpc/metadata"
)
   
func main() {
  ctx := context.Background()
  client, err := routing.NewRoutesClient(ctx)
  if err != nil {
    fmt.Fprintf(os.Stderr, "error: %v\n", err)
    os.Exit(1)
  }
     
  computeRoutesReq := routingpb.ComputeRoutesRequest{
    Origin: &routingpb.Waypoint{
      LocationType: &routingpb.Waypoint_PlaceId{
        PlaceId: "ChIJeRpOeF67j4AR9ydy_PIzPuM",
      },
    },
    Destination: &routingpb.Waypoint{
      LocationType: &routingpb.Waypoint_PlaceId{
        PlaceId: "ChIJG3kh4hq6j4AR_XuFQnV0_t8",
      },
    },
    RoutingPreference: routingpb.RoutingPreference_TRAFFIC_AWARE,
    TravelMode:        routingpb.RouteTravelMode_DRIVE,
  }
  ctx = metadata.AppendToOutgoingContext(ctx, "X-Goog-FieldMask", "*")
  computeRoutesResponse, err := client.ComputeRoutes(ctx, &computeRoutesReq)
  if err != nil {
    fmt.Fprintf(os.Stderr, "error: %v\n", err)
    os.Exit(1)
  }
  fmt.Fprintf(os.Stdout, "response: %v\n", computeRoutesResponse)
}

Beispiel für eine Routenmatrix: 

import (
  "context"
  "fmt"
  "io"
  "os"
     
  routing "cloud.google.com/go/maps/routing/apiv2"
  "cloud.google.com/go/maps/routing/apiv2/routingpb"
  "google.golang.org/grpc/metadata"
)
   
func main() {
  ctx := context.Background()
  client, err := routing.NewRoutesClient(ctx)
  if err != nil {
    fmt.Printf("error: %v\n", err)
    os.Exit(1)
  }
     
  computeRouteMatrixReq := routingpb.ComputeRouteMatrixRequest{
    Origins: []*routingpb.RouteMatrixOrigin{
      {
        Waypoint: &routingpb.Waypoint{
          LocationType: &routingpb.Waypoint_PlaceId{
            PlaceId: "ChIJeRpOeF67j4AR9ydy_PIzPuM",
          },
        },
      },
    },
    Destinations: []*routingpb.RouteMatrixDestination{
      {
        Waypoint: &routingpb.Waypoint{
          LocationType: &routingpb.Waypoint_PlaceId{
            PlaceId: "ChIJG3kh4hq6j4AR_XuFQnV0_t8",
          },
        },
      },
    },
    TravelMode: routingpb.RouteTravelMode_DRIVE,
  }
  ctx = metadata.AppendToOutgoingContext(ctx, "X-Goog-FieldMask", "*")
  stream, err := client.ComputeRouteMatrix(ctx, &computeRouteMatrixReq)
  if err != nil {
    fmt.Fprintf(os.Stderr, "error: %v\n", err)
    os.Exit(1)
  }
  for {
    element, err := stream.Recv()
    if err == io.EOF {
      break
    }
    if err != nil {
      fmt.Fprintf(os.Stderr, "error: %v\n", err)
      os.Exit(1)
    }
    fmt.Fprintf(os.Stdout, "element: %v\n", element)
  }
}

Node.js

Beispiel für Compute Routes: 

// Imports the Routing library
const { RoutesClient } = require("@googlemaps/routing").v2;
const origin = {
  location: {
    latLng: {
      latitude: 37.419734,
      longitude: -122.0827784,
    },
  },
};
const destination = {
  location: {
    latLng: {
      latitude: 37.41767,
      longitude: -122.079595,
    },
  },
};
// Instantiates a client
const routingClient = new RoutesClient();
async function callComputeRoutes() {
  const request = {
    origin,
    destination,
  };
  // Run request
  const response = await routingClient.computeRoutes(request, {
    otherArgs: {
      headers: {
        "Content-Type": "application/json",
        "X-Goog-Api-Key": "YOUR_API_KEY",
        "X-Goog-FieldMask":
          "routes.duration,routes.distanceMeters,routes.polyline.encodedPolyline",
      },
    },
  });
  console.log(response);
}
callComputeRoutes();

Beispiel für Compute Route Matrix: 

// Imports the Routing library
const { RoutesClient } = require("@googlemaps/routing").v2;
const origins = [
  {
    waypoint: {
      location: {
        latLng: {
          latitude: 37.420761,
          longitude: -122.081356,
        },
      },
    },
  },
  {
    waypoint: {
      location: {
        latLng: {
          latitude: 37.403184,
          longitude: -122.097371,
        },
      },
    },
  },
];
const destinations = [
  {
    waypoint: {
      location: {
        latLng: {
          latitude: 37.420999,
          longitude: -122.086894,
        },
      },
    },
  },
  {
    waypoint: {
      location: {
        latLng: {
          latitude: 37.383047,
          longitude: -122.044651,
        },
      },
    },
  },
];
// Instantiates a client
const routingClient = new RoutesClient();
async function callComputeRouteMatrix() {
  // Construct request
  const request = {
    origins,
    destinations,
  };
  // Run request
  const stream = await routingClient.computeRouteMatrix(request, {
    otherArgs: {
      headers: {
        "Content-Type": "application/json",
        "X-Goog-Api-Key": "YOUR_API_KEY",
        "X-Goog-FieldMask": "*",
      },
    },
  });
  stream.on("data", (response) => {
    console.log(response);
  });
  stream.on("error", (err) => {
    throw err;
  });
  stream.on("end", () => {
    /* API call completed */
  });
}
callComputeRouteMatrix();

Python

# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
#   client as shown in:
#   https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.maps import routing_v2


async def sample_compute_routes():
    # Create a client
    client = routing_v2.RoutesAsyncClient()

    # Initialize request argument(s)
    request = routing_v2.ComputeRoutesRequest(
    )

    # Make the request
    response = await client.compute_routes(request=request)

    # Handle the response
    print(response)

.Net

using Google.Maps.Routing.V2;
using Google.Protobuf.WellKnownTypes;
using System.Threading.Tasks;

public sealed partial class GeneratedRoutesClientSnippets
{
    /// <summary>Snippet for ComputeRoutesAsync</summary>
    /// <remarks>
    /// This snippet has been automatically generated and should be regarded as a code template only.
    /// It will require modifications to work:
    /// - It may require correct/in-range values for request initialization.
    /// - It may require specifying regional endpoints when creating the service client as shown in
    ///   https://cloud.google.com/dotnet/docs/reference/help/client-configuration#endpoint.
    /// </remarks>
    public async Task ComputeRoutesRequestObjectAsync()
    {
        // Create client
        RoutesClient routesClient = await RoutesClient.CreateAsync();
        // Initialize request argument(s)
        ComputeRoutesRequest request = new ComputeRoutesRequest
        {
            Origin = new Waypoint(),
            Destination = new Waypoint(),
            Intermediates = { new Waypoint(), },
            TravelMode = RouteTravelMode.TravelModeUnspecified,
            RoutingPreference = RoutingPreference.Unspecified,
            PolylineQuality = PolylineQuality.Unspecified,
            DepartureTime = new Timestamp(),
            ComputeAlternativeRoutes = false,
            RouteModifiers = new RouteModifiers(),
            LanguageCode = "",
            Units = Units.Unspecified,
            PolylineEncoding = PolylineEncoding.Unspecified,
            OptimizeWaypointOrder = false,
            RequestedReferenceRoutes =
            {
                ComputeRoutesRequest.Types.ReferenceRoute.Unspecified,
            },
            ExtraComputations =
            {
                ComputeRoutesRequest.Types.ExtraComputation.Unspecified,
            },
            RegionCode = "",
            TrafficModel = TrafficModel.Unspecified,
            ArrivalTime = new Timestamp(),
            TransitPreferences = new TransitPreferences(),
        };
        // Make the request
        ComputeRoutesResponse response = await routesClient.ComputeRoutesAsync(request);
    }
}

Zusätzliche Ressourcen

Java

Ok

Node.js

Python

.Net