Navigation Connect クライアント ライブラリの例

このページでは、Navigation Connect クライアント ライブラリを使用して次のメソッドを呼び出す方法の例を示します。

クライアント ライブラリのインストール

インストール手順については、Navigation Connect クライアント ライブラリをご覧ください。

認証

クライアント ライブラリを使用する場合は、 アプリケーションのデフォルト認証情報（ADC） を使用して認証を行います。ADC の設定については、 アプリケーションのデフォルト認証情報に認証情報を提供するをご覧ください。 クライアント ライブラリで ADC を使用する方法については、 クライアント ライブラリを使用して認証するをご覧ください。

このページの例では、アプリケーションのデフォルト認証情報を使用します。

例

ルートを作成する（CreateTrip）

次の例は、CreateTrip を呼び出してルートを初期化し、認証されたルートトークンを取得する方法を示しています。

Python

from google.maps import navconnect_v1

def create_trip(project_id: str, trip_id: str, android_app_id: str, ios_app_id: str):
    # Initialize the client with ADC
    client = navconnect_v1.NavConnectServiceClient()

    # Construct the trip request
    request = navconnect_v1.CreateTripRequest(
        parent=f"projects/{project_id}",
        trip_id=trip_id,
        trip=navconnect_v1.Trip(
            android_app_id=android_app_id,
            ios_app_id=ios_app_id,
            config=navconnect_v1.TripConfig(
                enable_pubsub=True,
            ),
        ),
    )

    try:
        response = client.create_trip(request=request)
        print(f"Trip Name: {response.name}")
        print(f"Trip State: {response.state}")
        print(f"Trip Token: {response.auth_token.token}")
        print(f"Token Expiry: {response.auth_token.expire_time}")
    except Exception as e:
        print(f"Error creating trip: {e}")

Node.js

const {NavConnectServiceClient} = require('@google-cloud/navconnect');

async function createTrip(projectId, tripId, androidAppId, iosAppId) {
  // Initialize the client with ADC
  const client = new NavConnectServiceClient();

  const request = {
    parent: `projects/${projectId}`,
    tripId: tripId,
    trip: {
      androidAppId: androidAppId,
      iosAppId: iosAppId,
      config: {
        enablePubsub: true,
      },
    },
  };

  try {
    const [response] = await client.createTrip(request);
    console.log(`Trip Name: ${response.name}`);
    console.log(`Trip State: ${response.state}`);
    console.log(`Trip Token: ${response.authToken.token}`);
    console.log(`Token Expiry: ${response.authToken.expireTime}`);
  } catch (error) {
    console.error(`Error creating trip: ${error}`);
  }
}

Java

import com.google.maps.navconnect.v1.CreateTripRequest;
import com.google.maps.navconnect.v1.NavConnectServiceClient;
import com.google.maps.navconnect.v1.Trip;
import com.google.maps.navconnect.v1.TripConfig;

public class CreateTripExample {
  public static void createTrip(
      String projectId, String tripId, String androidAppId, String iosAppId) throws Exception {
    // Initialize the client with ADC
    try (NavConnectServiceClient client = NavConnectServiceClient.create()) {
      CreateTripRequest request =
          CreateTripRequest.newBuilder()
              .setParent("projects/" + projectId)
              .setTripId(tripId)
              .setTrip(
                  Trip.newBuilder()
                      .setAndroidAppId(androidAppId)
                      .setIosAppId(iosAppId)
                      .setConfig(TripConfig.newBuilder().setEnablePubsub(true).build())
                      .build())
              .build();

      Trip response = client.createTrip(request);
      System.out.println("Trip Name: " + response.getName());
      System.out.println("Trip State: " + response.getState());
      System.out.println("Trip Token: " + response.getAuthToken().getToken());
    }
  }
}

Go

package main

import (
    "context"
    "fmt"
    "log"

    navconnect "cloud.google.com/go/maps/navconnect/apiv1"
    navconnectpb "cloud.google.com/go/maps/navconnect/apiv1/navconnectpb"
)

func createTrip(ctx context.Context, projectID, tripID, androidAppID, iosAppID string) {
    // Initialize the client with ADC
    client, err := navconnect.NewNavConnectClient(ctx)
    if err != nil {
        log.Fatalf("Failed to create client: %v", err)
    }
    defer client.Close()

    req := &navconnectpb.CreateTripRequest{
        Parent: fmt.Sprintf("projects/%s", projectID),
        TripId: tripID,
        Trip: &navconnectpb.Trip{
            AndroidAppId: androidAppID,
            IosAppId:     iosAppID,
            Config: &navconnectpb.TripConfig{
                EnablePubsub: true,
            },
        },
    }

    resp, err := client.CreateTrip(ctx, req)
    if err != nil {
        log.Fatalf("Failed to create trip: %v", err)
    }

    fmt.Printf("Trip Name: %s\n", resp.GetName())
    fmt.Printf("Trip State: %s\n", resp.GetState())
    fmt.Printf("Trip Token: %s\n", resp.GetAuthToken().GetToken())
}

.NET

using Google.Maps.NavConnect.V1;
using System;
using System.Threading.Tasks;

public class NavConnectSamples
{
    public static async Task CreateTripAsync(string projectId, string tripId, string androidAppId, string iosAppId)
    {
        // Initialize the client with ADC
        NavConnectServiceClient client = await NavConnectServiceClient.CreateAsync();

        CreateTripRequest request = new CreateTripRequest
        {
            Parent = $"projects/{projectId}",
            TripId = tripId,
            Trip = new Trip
            {
                AndroidAppId = androidAppId,
                IosAppId = iosAppId,
                Config = new TripConfig
                {
                    EnablePubsub = true
                }
            }
        };

        try
        {
            Trip response = await client.CreateTripAsync(request);
            Console.WriteLine($"Trip Name: {response.Name}");
            Console.WriteLine($"Trip State: {response.State}");
            Console.WriteLine($"Trip Token: {response.AuthToken.Token}");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error creating trip: {ex.Message}");
        }
    }
}

ルートデータを取得する（GetTrip）

次の例は、GetTrip を呼び出して、ルートのリアルタイム ステータス、テレメトリー、残りのルートデータを取得する方法を示しています。

Python

from google.maps import navconnect_v1

def get_trip(project_id: str, trip_id: str):
    # Initialize the client with ADC
    client = navconnect_v1.NavConnectServiceClient()

    request = navconnect_v1.GetTripRequest(
        name=f"projects/{project_id}/trips/{trip_id}",
        route_polyline_format=navconnect_v1.GetTripRequest.RoutePolylineFormat.GEO_JSON,
    )

    try:
        response = client.get_trip(request=request)
        print(f"Trip Status: {response.state}")
        if response.execution:
            print(f"Remaining Duration: {response.execution.remaining_duration}")
            print(f"Remaining Distance (m): {response.execution.remaining_distance_meters}")
    except Exception as e:
        print(f"Error retrieving trip: {e}")

Node.js

const {NavConnectServiceClient} = require('@google-cloud/navconnect');

async function getTrip(projectId, tripId) {
  // Initialize the client with ADC
  const client = new NavConnectServiceClient();

  const request = {
    name: `projects/${projectId}/trips/${tripId}`,
    routePolylineFormat: 'GEO_JSON',
  };

  try {
    const [response] = await client.getTrip(request);
    console.log(`Trip Status: ${response.state}`);
    if (response.execution) {
      console.log(`Remaining Duration: ${response.execution.remainingDuration}`);
      console.log(`Remaining Distance (m): ${response.execution.remainingDistanceMeters}`);
    }
  } catch (error) {
    console.error(`Error retrieving trip: ${error}`);
  }
}

Java

import com.google.maps.navconnect.v1.GetTripRequest;
import com.google.maps.navconnect.v1.NavConnectServiceClient;
import com.google.maps.navconnect.v1.Trip;

public class GetTripExample {
  public static void getTrip(String projectId, String tripId) throws Exception {
    // Initialize the client with ADC
    try (NavConnectServiceClient client = NavConnectServiceClient.create()) {
      GetTripRequest request =
          GetTripRequest.newBuilder()
              .setName("projects/" + projectId + "/trips/" + tripId)
              .setRoutePolylineFormat(GetTripRequest.RoutePolylineFormat.GEO_JSON)
              .build();

      Trip response = client.getTrip(request);
      System.out.println("Trip Status: " + response.getState());
      if (response.hasExecution()) {
        System.out.println(
            "Remaining Distance (m): " + response.getExecution().getRemainingDistanceMeters());
      }
    }
  }
}

Go

package main

import (
    "context"
    "fmt"
    "log"

    navconnect "cloud.google.com/go/maps/navconnect/apiv1"
    navconnectpb "cloud.google.com/go/maps/navconnect/apiv1/navconnectpb"
)

func getTrip(ctx context.Context, projectID, tripID string) {
    // Initialize the client with ADC
    client, err := navconnect.NewNavConnectClient(ctx)
    if err != nil {
        log.Fatalf("Failed to create client: %v", err)
    }
    defer client.Close()

    req := &navconnectpb.GetTripRequest{
        Name:                fmt.Sprintf("projects/%s/trips/%s", projectID, tripID),
        RoutePolylineFormat: navconnectpb.GetTripRequest_GEO_JSON,
    }

    resp, err := client.GetTrip(ctx, req)
    if err != nil {
        log.Fatalf("Failed to get trip: %v", err)
    }

    fmt.Printf("Trip Status: %s\n", resp.GetState())
    if exec := resp.GetExecution(); exec != nil {
        fmt.Printf("Remaining Distance (m): %d\n", exec.GetRemainingDistanceMeters())
    }
}

.NET

using Google.Maps.NavConnect.V1;
using System;
using System.Threading.Tasks;

public class NavConnectGetSample
{
    public static async Task GetTripAsync(string projectId, string tripId)
    {
        // Initialize the client with ADC
        NavConnectServiceClient client = await NavConnectServiceClient.CreateAsync();

        GetTripRequest request = new GetTripRequest
        {
            Name = $"projects/{projectId}/trips/{tripId}",
            RoutePolylineFormat = GetTripRequest.Types.RoutePolylineFormat.GeoJson
        };

        try
        {
            Trip response = await client.GetTripAsync(request);
            Console.WriteLine($"Trip Status: {response.State}");
            if (response.Execution != null)
            {
                Console.WriteLine($"Remaining Distance (m): {response.Execution.RemainingDistanceMeters}");
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error retrieving trip: {ex.Message}");
        }
    }
}