The unique identifier for a class. This ID must be unique across all classes from an issuer. This value should follow the format issuer ID.identifier where the former is issued by Google and latter is chosen by you. Your unique identifier should only include alphanumeric characters, '.', '_', or '-'.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-13 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,["- [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\nHTTP 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\nPath 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\nRequest body\n\nThe request body contains an instance of [AddMessageRequest](/wallet/reference/rest/v1/AddMessageRequest).\n\nResponse body If 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\nAuthorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/wallet_object.issuer`"]]
