state パラメータは URL エンコードされているため、アプリはエスケープ文字を処理して JSON として解析する必要があります。
ユーザーと新しいイベント
ドライブ アプリは、すべての「作成」イベントを潜在的なログインとして扱う必要があります。一部のユーザーは複数のアカウントを持っている可能性があるため、state パラメータのユーザー ID が現在のセッションと一致しない場合があります。state パラメータのユーザー ID が現在のセッションと一致しない場合は、アプリの現在のセッションを終了し、リクエストされたユーザーとしてログインします。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-08-04 UTC。"],[],[],null,["# Integrate with Drive UI's "New" button\n\nWhen a user clicks [Drive UI's \"New\"\nbutton](/workspace/drive/api/guides/about-apps#new) and selects an app in the\nDrive UI, Drive redirects the user to that app's New URL\ndefined in [Configure a Drive UI\nintegration](/workspace/drive/api/guides/enable-sdk).\n\nYour app then receives a default set of template variables within a\n[`state`](/workspace/drive/api/guides/enable-sdk#construct) parameter. The default `state`\ninformation for a New URL is: \n\n {\n \"action\":\"create\",\n \"folderId\":\"\u003cvar translate=\"no\"\u003eFOLDER_ID\u003c/var\u003e\",\n \"folderResourceKey\":\"\u003cvar translate=\"no\"\u003eFOLDER_RESOURCE_KEY\u003c/var\u003e\",\n \"userId\":\"\u003cvar translate=\"no\"\u003eUSER_ID\u003c/var\u003e\"\n }\n\nThis output includes the following values:\n\n- `create`: The action being performed. The value is `create` when a user clicks [Drive UI's \"New\"\n button](/workspace/drive/api/guides/about-apps#new).\n- \u003cvar translate=\"no\"\u003eFOLDER_ID\u003c/var\u003e: The ID of the parent folder.\n- \u003cvar translate=\"no\"\u003eFOLDER_RESOURCE_KEY\u003c/var\u003e: The resource key of the parent folder.\n- \u003cvar translate=\"no\"\u003eUSER_ID\u003c/var\u003e: The profile ID that uniquely identifies the user.\n\nYour app must act on this request by following these steps:\n\n1. Verify that the `action` field has a value of `create`.\n2. Use the `userId` value to create a new session for the user. For more information on signed-in users, see [Users \\& new events](#potential-logins).\n3. Use the [`files.create`](/workspace/drive/api/v3/reference/files/create) method to create a file resource. If `folderId` was set on the request, set the `parents` field to the `folderId` value.\n4. If `folderResourceKey` was set on the request, set the `X-Goog-Drive-Resource-Keys` request header. For more information on resource keys, see [Access link-shared files using resource\n keys](/workspace/drive/api/guides/resource-keys).\n\nThe `state` parameter is URL-encoded, so your app must handle the escape\ncharacters and parse it as JSON.\n\nUsers \\& new events\n-------------------\n\nDrive apps should treat all \"create\" events as potential\nsign-ins. Some users might have multiple accounts, so the user ID in the `state`\nparameter might not match the current session. If the user ID in the `state`\nparameter doesn't match the current session, end the current session for your\napp and sign in as the requested user."]]