GAPI Client Libraries

For server-to-server (trusted) communication, we recommend using language-specific GAPI client libraries for a better experience than developing over raw REST or gRPC. The protobuf files these clients are based on are publicly available at https://github.com/googleapis/googleapis/tree/master/google/maps/fleetengine/delivery/v1.

If libraries do not exist in your application's language, we recommend using gRPC or the Fleet Engine REST endpoints.

NOTE: GAPIC libraries are intended to run in trusted (server) environments. JWTs are unnecessary. Use Application Default Credentials along with the appropriate deliveryAdmin role.

Java

Java libraries are published under google.maps.fleetengine.delivery.v1.

plugins {
  id "maven-publish"
  id "com.google.cloud.artifactregistry.gradle-plugin" version "2.1.4"
}

publishing {
  repositories {
    maven {
      url "artifactregistry://us-maven.pkg.dev/fleetengine-gapic/maven"
    }
  }
}

repositories {
  maven {
    url "artifactregistry://us-maven.pkg.dev/fleetengine-gapic/maven"
  }
}

dependencies {
  implementation 'com.google.maps:gapic-google-maps-fleetengine-delivery-v1-java:latest.release'
}

<project>
  <distributionManagement>
    <snapshotRepository>
      <id>artifact-registry</id>
      <url>artifactregistry://us-maven.pkg.dev/fleetengine-gapic/maven</url>
    </snapshotRepository>
    <repository>
      <id>artifact-registry</id>
      <url>artifactregistry://us-maven.pkg.dev/fleetengine-gapic/maven</url>
    </repository>
  </distributionManagement>

  <repositories>
    <repository>
      <id>artifact-registry</id>
      <url>artifactregistry://us-maven.pkg.dev/fleetengine-gapic/maven</url>
      <releases>
        <enabled>true</enabled>
      </releases>
      <snapshots>
        <enabled>true</enabled>
      </snapshots>
    </repository>
  </repositories>

  <build>
    <extensions>
      <extension>
        <groupId>com.google.cloud.artifactregistry</groupId>
        <artifactId>artifactregistry-maven-wagon</artifactId>
        <version>2.1.4</version>
      </extension>
    </extensions>
  </build>

  <dependency>
    <groupId>com.google.maps</groupId>
    <artifactId>gapic-google-maps-fleetengine-delivery-v1-java</artifactId>
    <version>LATEST</version>
  </dependency>
</project>

You can utilize the Fleet Engine Auth Library for Java to create signed JSON web tokens within the Java environment.

You can view Java examples for interacting with the Fleet Engine API on the Getting started with Fleet Engine page.

Node.js / TypeScript

{
  "dependencies": {
    "@googlemaps/fleetengine-delivery": "https://storage.googleapis.com/fleetengine-gapic/dist/latest_release/maps-fleetengine-delivery-v1-nodejs.tar.gz",
    "google-auth-library": "^9.2.0",
    "googleapis": "^118.0.0"
  }
}

Sample code:

const {google} = require('googleapis');
const fleetengine = require('@googlemaps/fleetengine-delivery');
const {GoogleAuth} = require('google-auth-library');

// CONSTANTS
const PROJECT_ID = 'YOUR_GCP_PROJECT_NAME';
const VEHICLE_ID = 'YOUR_VEHICLE_ID';
const SERVICE_ACCOUNT = 'YOUR_SERVICE_ACCOUNT';
const SERVICE_ACCOUNT_EMAIL = `${SERVICE_ACCOUNT}@${PROJECT_ID}.iam.gserviceaccount.com`;

// CREATE A JWT FOR AUTHENTICATION
const HOWLONG = 55 * 60;          // 55 minutes, cannot be more than 60 minutes

async function signToken(claims) {
  const googleAuth = new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  });
  const authClient = await googleAuth.getClient();
  google.options({auth: authClient});

  const now = Math.round(Date.now() / 1000);
  const iat = now - 300;
  const exp = now + HOWLONG;

  const request = {
      name: `projects/-/serviceAccounts/${SERVICE_ACCOUNT_EMAIL}`,
      requestBody: {
          payload: JSON.stringify({
              iss: SERVICE_ACCOUNT_EMAIL,
              sub: SERVICE_ACCOUNT_EMAIL,
              aud: 'https://fleetengine.googleapis.com/',
              iat: iat,
              exp: exp,
              authorization: claims
          }),
      }
  };

  const response = await google.iamcredentials('v1').projects.serviceAccounts
      .signJwt(request)
      .catch((err) => {
        if (err.errors) throw err.errors;
        else throw err;
      });
  return response.data.signedJwt;
}

// MAKE A REQUEST
async function main() {
    const claims = {
      deliveryvehicleid: VEHICLE_ID
    };

    signToken(claims).then(token => {
      let auth = new GoogleAuth();
      auth.cachedCredential = new AuthorizationHeaderProvider(token);
      const client = new fleetengine.DeliveryServiceClient({ auth: auth });

      client.getDeliveryVehicle({name: `providers/${PROJECT_ID}/deliveryVehicles/${VEHICLE_ID}`}).then(function(resp) {
        console.log(resp);
      }, function(err) {
        console.log(err);
      });
    });
}

class AuthorizationHeaderProvider {
    constructor(token) {
        this.token = token;
    }

    getRequestMetadata(url, callback) {
        callback(null, {'authorization': `Bearer ${this.token}`});
    }
}

main().catch(console.error);

Go

The Go library is packaged as a module at https://pkg.go.dev/cloud.google.com/go/maps

Python

See https://pypi.org/project/google-maps-fleetengine-delivery/0.1.0/

pip install google-auth
pip install google-maps-fleetengine-delivery

C#

Installation instructions for the C# library can be found at https://www.nuget.org/packages/Google.Maps.FleetEngine.Delivery.V1.

PHP

The PHP library can be downloaded from https://storage.googleapis.com/fleetengine-gapic/dist/latest_release/google-maps-fleetengine-delivery-v1-php.tar.gz

Ruby

The Ruby library can be downloaded from https://storage.googleapis.com/fleetengine-gapic/dist/latest_release/google-maps-fleetengine-delivery-v1-ruby.tar.gz