Giá trị nhận dạng duy nhất của một lớp. Mã này không được trùng với tất cả các hạng của công ty phát hành. Giá trị này phải tuân theo định dạng issuer ID.identifier, trong đó mã bưu chính do Google phát hành còn mã sau do bạn chọn. Giá trị nhận dạng duy nhất của bạn chỉ được bao gồm ký tự chữ-số, ".", "_" hoặc "-".
[[["Dễ hiểu","easyToUnderstand","thumb-up"],["Giúp tôi giải quyết được vấn đề","solvedMyProblem","thumb-up"],["Khác","otherUp","thumb-up"]],[["Thiếu thông tin tôi cần","missingTheInformationINeed","thumb-down"],["Quá phức tạp/quá nhiều bước","tooComplicatedTooManySteps","thumb-down"],["Đã lỗi thời","outOfDate","thumb-down"],["Vấn đề về bản dịch","translationIssue","thumb-down"],["Vấn đề về mẫu/mã","samplesCodeIssue","thumb-down"],["Khác","otherDown","thumb-down"]],["Cập nhật lần gần đây nhất: 2025-07-25 UTC."],[[["\u003cp\u003eThis document details the process for adding a message to a specific gift card class using the Google Wallet API.\u003c/p\u003e\n"],["\u003cp\u003eThe request is sent as a POST request to the specified URL with the gift card class ID as a path parameter.\u003c/p\u003e\n"],["\u003cp\u003eThe request body should contain an \u003ccode\u003eAddMessageRequest\u003c/code\u003e object as defined in the API reference.\u003c/p\u003e\n"],["\u003cp\u003eUpon successful execution, the API returns the updated \u003ccode\u003eGiftCardClass\u003c/code\u003e object in the response body.\u003c/p\u003e\n"],["\u003cp\u003eThis operation requires the \u003ccode\u003ehttps://www.googleapis.com/auth/wallet_object.issuer\u003c/code\u003e OAuth scope for authorization.\u003c/p\u003e\n"]]],["This describes adding a message to a gift card class using a `POST` request to a specific URL: `https://walletobjects.googleapis.com/walletobjects/v1/giftCardClass/{resourceId}/addMessage`. The `resourceId`, a unique class identifier, is a path parameter. The request body uses the `AddMessageRequest` format. A successful response returns a JSON object containing the updated `GiftCardClass` resource. Authorization requires the `https://www.googleapis.com/auth/wallet_object.issuer` OAuth scope.\n"],null,["# Method: giftcardclass.addmessage\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n - [JSON representation](#body.GiftCardClassAddMessageResponse.SCHEMA_REPRESENTATION)\n- [Authorization scopes](#body.aspect)\n\nAdds a message to the gift card class referenced by the given class ID.\n\n### HTTP request\n\n`POST https://walletobjects.googleapis.com/walletobjects/v1/giftCardClass/{resourceId}/addMessage`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n| Parameters ||\n|--------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `resourceId` | `string` The unique identifier for a class. This ID must be unique across all classes from an issuer. This value should follow the format \u003cvar translate=\"no\"\u003eissuer ID\u003c/var\u003e.\u003cvar translate=\"no\"\u003eidentifier\u003c/var\u003e where the former is issued by Google and latter is chosen by you. Your unique identifier should only include alphanumeric characters, '.', '_', or '-'. |\n\n### Request body\n\nThe request body contains an instance of [AddMessageRequest](/wallet/reference/rest/v1/AddMessageRequest).\n\n### Response body\n\nIf successful, the response body contains data with the following structure:\n\n| JSON representation |\n|--------------------------------------------------------------------------------------------|\n| ``` { \"resource\": { object (/wallet/reference/rest/v1/giftcardclass#GiftCardClass) } } ``` |\n\n| Fields ||\n|------------|-------------------------------------------------------------------------------------------------------------------------|\n| `resource` | `object (`[GiftCardClass](/wallet/reference/rest/v1/giftcardclass#GiftCardClass)`)` The updated GiftCardClass resource. |\n\n### Authorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/wallet_object.issuer`"]]
