기본 스테이지 또는 측면 패널에 대해 올바른 클라이언트 객체를 가져오는 것이 중요합니다. 잘못된 클라이언트가 검색되면 Google Meet 부가기능 SDK에서 예외를 발생시킵니다. 부가기능이 실행 중인 iframe (기본 스테이지 또는 측면 패널)을 확인하려면 getFrameType() 메서드를 사용합니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["필요한 정보가 없음","missingTheInformationINeed","thumb-down"],["너무 복잡함/단계 수가 너무 많음","tooComplicatedTooManySteps","thumb-down"],["오래됨","outOfDate","thumb-down"],["번역 문제","translationIssue","thumb-down"],["샘플/코드 문제","samplesCodeIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-08-29(UTC)"],[],[],null,["# Manage client objects\n\nThis page describes how to manage client objects that an\nadd-on needs to communicate with Google Meet.\n\nFirst, the add-on needs to establish a session: \n\n const session = await window.meet.addon.createAddonSession({\n cloudProjectNumber: \"\u003cvar translate=\"no\"\u003eCLOUD_PROJECT_NUMBER\u003c/var\u003e\",\n });\n\nReplace \u003cvar translate=\"no\"\u003eCLOUD_PROJECT_NUMBER\u003c/var\u003e with the project number of your\nGoogle Cloud project.\n\nFrom the session, two client objects can be created:\n\n- The [`MeetMainStageClient`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetmainstageclient)\n for an add-on running in the [main\n stage](/workspace/meet/add-ons/guides/overview#main-stage), retrievable using `await\n session.createMainStageClient()`.\n\n- The [`MeetSidePanelClient`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetsidepanelclient)\n for an add-on running in the [side\n panel](/workspace/meet/add-ons/guides/overview#side-panel), retrievable using `await\n session.createSidePanelClient()`.\n\nIt's important to retrieve the correct client object for either the main stage\nor side panel. If the wrong client is retrieved, the Google Meet add-ons SDK throws\nan exception. To check which iframe (main stage or side panel) the\nadd-on is running in, use the\n[`getFrameType()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetaddon.getframetype)\nmethod.\n\nThe following code sample shows how to instantiate the main stage client object: \n\n const session = await window.meet.addon.createAddonSession({\n cloudProjectNumber: \"\u003cvar translate=\"no\"\u003eCLOUD_PROJECT_NUMBER\u003c/var\u003e\"\n });\n const mainStageClient = await session.createMainStageClient();\n\nReplace \u003cvar translate=\"no\"\u003eCLOUD_PROJECT_NUMBER\u003c/var\u003e with the project number of your\nCloud project.\n\nShared features\n---------------\n\nSome features are available in both the `MeetMainStageClient` and the\n`MeetSidePanelClient` object, whereas other features are specific to a certain\nclient.\n\nFor example, some features that are available in both clients include:\n\n- The [`getActivityStartingState()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetaddonclient.getactivitystartingstate) method that gets information about the initial state of the add-on when the participant accepts the invitation to join the activity.\n- The [`getMeetingInfo()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetaddonclient.getmeetinginfo) method that gets details about the meeting in which the add-on is running.\n- The [`setActivityStartingState()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetaddonclient.setactivitystartingstate) method that sets the initial state of the add-on when the participant accepts the invitation to join the activity.\n- For a comprehensive list of features in both clients, see the [`MeetAddonClient`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetaddonclient) object.\n\nClient-specific features\n------------------------\n\nFeatures available only in the\n[`MeetMainStageClient`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetmainstageclient)\nobject:\n\n- The [`notifySidePanel()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetmainstageclient.notifysidepanel)\n method sends a message to the side panel. The message can be received by\n subscribing to the [`frameToFrameMessage`\n callback](/workspace/meet/add-ons/guides/frame-to-frame-messaging) in the side panel.\n\n- The [`loadSidePanel()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetmainstageclient.loadsidepanel)\n method opens the side-panel iframe. The iframe source is set to the\n side-panel URL from the manifest file.\n\n- The [`unloadSidePanel()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetmainstageclient.unloadsidepanel)\n method closes the side-panel iframe. The add-on\n state isn't retained within Meet when the method is called.\n It's up to the add-on to persist any\n add-on state before this method is called.\n\nFeatures available only in the\n[`MeetSidePanelClient`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetsidepanelclient)\nobject:\n\n- The [`notifyMainStage()`](/workspace/meet/add-ons/reference/websdk/addon_sdk.meetsidepanelclient.notifymainstage) method sends a message to the mainStage. The message can be received by subscribing to the [`frameToFrameMessage` callback\n property](/workspace/meet/add-ons/guides/frame-to-frame-messaging) in the mainstage."]]