Note:
This documentation is for version 1.3.0 of the library.
Some samples may not work with other versions.
Installation
Install the Google.Cloud.Retail.V2 package from NuGet. Add it to
your project in the normal way (for example by right-clicking on the
project in Visual Studio and choosing "Manage NuGet Packages...").
Authentication
When running on Google Cloud Platform, no action needs to be taken to authenticate.
Otherwise, the simplest way of authenticating your API calls is to
download a service account JSON file then set the GOOGLE_APPLICATION_CREDENTIALS environment variable to refer to it.
The credentials will automatically be used to authenticate. See the Getting Started With
Authentication guide for more details.
Getting started
All operations are performed through the following client classes:
Create a client instance by calling the static Create or CreateAsync methods. Alternatively,
use the builder class associated with each client class (e.g. CatalogServiceClientBuilder for CatalogServiceClient)
as an easy way of specifying custom credentials, settings, or a custom endpoint. Clients are thread-safe,
and we recommend using a single instance across your entire application unless you have a particular need
to configure multiple client objects separately.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the Google.Cloud.Retail.V2 .NET client library is 2.12.0, with the documentation currently focusing on version 1.3.0.\u003c/p\u003e\n"],["\u003cp\u003eThe library, \u003ccode\u003eGoogle.Cloud.Retail.V2\u003c/code\u003e, is a .NET client for the Retail API, designed specifically for early access users who are registered in the program.\u003c/p\u003e\n"],["\u003cp\u003eInstallation of the library is done through the \u003ccode\u003eGoogle.Cloud.Retail.V2\u003c/code\u003e NuGet package, and can be installed through Visual Studio's "Manage NuGet Packages" option.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication on Google Cloud Platform is seamless, but for other environments, a service account JSON file and the \u003ccode\u003eGOOGLE_APPLICATION_CREDENTIALS\u003c/code\u003e environment variable are required.\u003c/p\u003e\n"],["\u003cp\u003eThe library's functionality is accessed via six client classes, including \u003ccode\u003eCatalogServiceClient\u003c/code\u003e, \u003ccode\u003eCompletionServiceClient\u003c/code\u003e, \u003ccode\u003ePredictionServiceClient\u003c/code\u003e, \u003ccode\u003eProductServiceClient\u003c/code\u003e, \u003ccode\u003eSearchServiceClient\u003c/code\u003e, and \u003ccode\u003eUserEventServiceClient\u003c/code\u003e, all of which can be instantiated using static \u003ccode\u003eCreate\u003c/code\u003e or \u003ccode\u003eCreateAsync\u003c/code\u003e methods.\u003c/p\u003e\n"]]],[],null,[]]
