JavaScript Fleet 추적 라이브러리 설정
컬렉션을 사용해 정리하기
내 환경설정을 기준으로 콘텐츠를 저장하고 분류하세요.
JavaScript Fleet Tracking Library를 사용하기 전에 Fleet Engine을 숙지하고 설정했는지 확인하세요. 자세한 내용은 Fleet Engine을 참고하세요.
이 문서에서는 웹페이지 앱과 Fleet Engine 간의 승인을 사용 설정하는 방법을 보여줍니다. Fleet Engine에 대한 요청이 올바른 승인 토큰으로 설정되면 지도에서 차량을 추적할 수 있습니다.
승인 설정하기
Fleet Engine에서는 신뢰도가 낮은 환경(스마트폰 및 브라우저)에서 API 메서드를 호출할 때 JSON 웹 토큰(JWT)을 사용해야 합니다.
JWT는 서버에서 생성되고 서명, 암호화되어 만료되거나 더 이상 유효하지 않을 때까지 후속 서버 상호작용을 위해 클라이언트에 전달됩니다.
주요 세부정보
승인은 어떻게 작동하나요?
Fleet Engine 데이터를 사용한 승인에는 서버 측 및 클라이언트 측 구현이 모두 포함됩니다.
서버 측 승인
차량 추적 애플리케이션에서 인증 및 승인을 설정하기 전에 백엔드 서버가 Fleet Engine에 액세스할 수 있도록 차량 추적 애플리케이션에 JSON 웹 토큰을 발급할 수 있어야 합니다. 차량 추적 애플리케이션은 요청과 함께 이러한 JWT를 전송하므로 Fleet Engine은 요청을 인증되고 요청의 데이터에 액세스할 권한이 있는 것으로 인식합니다. 서버 측 JWT 구현에 관한 안내는 Fleet Engine 기본사항의 JSON 웹 토큰 발급을 참고하세요.
Fleet 추적을 구현할 때 서버에서 토큰을 생성하려면 다음을 참고하세요.
클라이언트 측 승인
JavaScript Fleet tracking library를 사용하면 승인 토큰 가져오기를 사용하여 서버에서 토큰을 요청합니다. 다음 중 하나가 참인 경우 이 작업을 실행합니다.
그렇지 않으면 JavaScript 차량 추적 라이브러리가 이전에 발급된 유효한 토큰을 사용하고 패처를 호출하지 않습니다.
승인 토큰 가져오기 도구 만들기
다음 가이드라인에 따라 승인 토큰 가져오기를 만듭니다.
예시 - 승인 토큰 가져오기 프로그램 만들기
다음 예에서는 승인 토큰 가져오기를 만드는 방법을 보여줍니다.
자바스크립트
async function authTokenFetcher(options) {
// options is a record containing two keys called
// serviceType and context. The developer should
// generate the correct SERVER_TOKEN_URL and request
// based on the values of these fields.
const response = await fetch(SERVER_TOKEN_URL);
if (!response.ok) {
throw new Error(response.statusText);
}
const data = await response.json();
return {
token: data.Token,
expiresInSeconds: data.ExpiresInSeconds
};
}
TypeScript
function authTokenFetcher(options: {
serviceType: google.maps.journeySharing.FleetEngineServiceType,
context: google.maps.journeySharing.AuthTokenContext,
}): Promise<google.maps.journeySharing.AuthToken> {
// The developer should generate the correct
// SERVER_TOKEN_URL based on options.
const response = await fetch(SERVER_TOKEN_URL);
if (!response.ok) {
throw new Error(response.statusText);
}
const data = await response.json();
return {
token: data.token,
expiresInSeconds: data.ExpiresInSeconds,
};
}
다음 단계
달리 명시되지 않는 한 이 페이지의 콘텐츠에는 Creative Commons Attribution 4.0 라이선스에 따라 라이선스가 부여되며, 코드 샘플에는 Apache 2.0 라이선스에 따라 라이선스가 부여됩니다. 자세한 내용은 Google Developers 사이트 정책을 참조하세요. 자바는 Oracle 및/또는 Oracle 계열사의 등록 상표입니다.
최종 업데이트: 2025-08-31(UTC)
[null,null,["최종 업데이트: 2025-08-31(UTC)"],[[["\u003cp\u003eBefore using the JavaScript Fleet tracking library, ensure you have Fleet Engine set up and are familiar with it.\u003c/p\u003e\n"],["\u003cp\u003eFleet Engine requires JSON Web Tokens (JWTs) for API calls from low-trust environments like web browsers.\u003c/p\u003e\n"],["\u003cp\u003eYour backend server should be configured to issue JWTs to your Fleet tracking application for authentication and authorization with Fleet Engine.\u003c/p\u003e\n"],["\u003cp\u003eThe JavaScript Fleet tracking library utilizes an authorization token fetcher to request and manage JWTs, ensuring secure communication with Fleet Engine.\u003c/p\u003e\n"],["\u003cp\u003eAfter setting up authorization, you can proceed with tracking vehicles and viewing your fleet in real-time.\u003c/p\u003e\n"]]],["Fleet Engine authorization requires JSON Web Tokens (JWTs) for API calls from low-trust environments. Your backend server issues signed, encrypted JWTs to the client. Use Application Default Credentials and service accounts to authenticate. The JavaScript Fleet tracking library uses an authorization token fetcher to get a token from your server. The fetcher must return a token and its expiration time. The library requests a new token if no valid token exists, if it has expired, or if it is near expiring.\n"],null,["Before using the JavaScript fleet tracking library, make sure you are\nfamiliar with and have set up Fleet Engine. For details, see\n[Fleet Engine](/maps/documentation/mobility/fleet-engine).\n\nThis document shows how to enable authorization between the\nweb page app and Fleet Engine. Once your requests to Fleet Engine have\nbeen set up with the correct authorization tokens, you'll be ready to\ntrack a vehicle on a map.\n\nSet up authorization\n\nFleet Engine requires the use of **JSON Web Tokens** (JWTs) for API method calls\nfrom **low-trust environments**: smartphones and browsers.\n\nA JWT originates on your server, is signed, encrypted, and passed to the client\nfor subsequent server interactions until it expires or is no longer valid.\n\n**Key details**\n\n- Use [Application Default Credentials](https://google.aip.dev/auth/4110) to authenticate and authorize against Fleet Engine.\n- Use an appropriate service account to sign JWTs. See [Fleet Engine serviceaccount](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/service-accounts#fleet_engine_service_account_roles) roles in **Fleet Engine Basics**.\n\nHow does authorization work?\n\nAuthorization with Fleet Engine data involves both server-side and client-side\nimplementation.\n\nServer-side authorization\n\nBefore you set up authentication and authorization in your Fleet tracking\napplication, your backend server must be able to issue JSON Web Tokens to your\nFleet tracking application for access to Fleet Engine. Your Fleet tracking application\nsends these JWTs with its requests so Fleet Engine recognizes the requests as\nauthenticated and authorized to access the data in the\nrequest. For instructions on server-side JWT implementation, see [Issue JSON Web\nTokens](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/issue-jwt) under **Fleet Engine Essentials**.\nTo generate tokens from your server when implementing Fleet tracking, see the following:\n\n\u003cbr /\u003e\n\n- [General guidelines](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/issue-jwt#general_guidelines) for issuing JSON Web Tokens, including sections for both on-demand trips and scheduled tasks\n- On-demand trips: [Example token for a backend server operation](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/issue-jwt#example_token_for_a_backend_server_operation)\n- Scheduled tasks: [Example token to track all tasks and vehicles in the\n fleet](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/issue-jwt#example_token_to_track_all_tasks_and_vehicles)\n\nClient-side authorization\n\nWhen you use the JavaScript Fleet tracking library, it requests a token from the server using an\nauthorization token fetcher. It does this when any of the following is true:\n\n- No valid token exists, such as when the SDK hasn't called the fetcher on a\n fresh page load, or when the fetcher hasn't returned with a token.\n\n- The token has expired.\n\n- The token is within one minute of expiring.\n\nOtherwise, the JavaScript Fleet tracking library uses the previously-issued, valid token and does not\ncall the fetcher.\n\nCreate an authorization token fetcher\n\nCreate your authorization token fetcher using these guidelines:\n\n- **The fetcher must return a data structure with two fields** , wrapped in a\n `Promise` as follows:\n\n - A string `token`.\n\n - A number `expiresInSeconds`. A token expires in this amount of time\n after fetching. The authentication token fetcher must pass the expiry\n time in seconds, from the time of fetching to the library as shown in\n the example.\n\n- **The fetcher should call a URL on your server** to retrieve a token. This\n URL--the `SERVER_TOKEN_URL`--depends on your backend implementation. The\n following example URL is for the [sample app backend on GitHub](https://github.com/googlemaps/last-mile-fleet-solution-samples/tree/main/backend):\n\n - `https://SERVER_URL/token/fleet_reader`\n\nExample - Create an authorization token fetcher\n\nThe following examples show how to create an authorization token fetcher: \n\nJavaScript \n\n async function authTokenFetcher(options) {\n // options is a record containing two keys called\n // serviceType and context. The developer should\n // generate the correct SERVER_TOKEN_URL and request\n // based on the values of these fields.\n const response = await fetch(SERVER_TOKEN_URL);\n if (!response.ok) {\n throw new Error(response.statusText);\n }\n const data = await response.json();\n return {\n token: data.Token,\n expiresInSeconds: data.ExpiresInSeconds\n };\n }\n\nTypeScript \n\n function authTokenFetcher(options: {\n serviceType: google.maps.journeySharing.FleetEngineServiceType,\n context: google.maps.journeySharing.AuthTokenContext,\n }): Promise\u003cgoogle.maps.journeySharing.AuthToken\u003e {\n // The developer should generate the correct\n // SERVER_TOKEN_URL based on options.\n const response = await fetch(SERVER_TOKEN_URL);\n if (!response.ok) {\n throw new Error(response.statusText);\n }\n const data = await response.json();\n return {\n token: data.token,\n expiresInSeconds: data.ExpiresInSeconds,\n };\n }\n\nWhat's next\n\n- [Track a vehicle](/maps/documentation/mobility/operations/fleet-tracking/follow)\n- [View a fleet](/maps/documentation/mobility/operations/fleet-tracking/view-fleet)"]]