public static T AddCredential<T>(this T request, ICredential credential)
where T : ClientServiceRequest
Add a credential that is used for this request only.
This will override a service-level credential (if there is one).
Do not call more than once per request instance, as each call incrementally adds the provided credential.
To perform identical requests but with distinct credentials, create a separate request instance for each credential.
Parameters
Name
Description
request
T
The request which requires a credential. Must not be null.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 \u003ccode\u003eGoogle.Apis.Auth.OAuth2.RequestExtensions\u003c/code\u003e is 1.69.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eRequestExtensions\u003c/code\u003e class provides extension methods for requests and inherits from the \u003ccode\u003eObject\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAddCredential<T>\u003c/code\u003e method allows adding a credential specifically for a single request, overriding any service-level credentials.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAddCredential<T>\u003c/code\u003e method's functionality ensures that using distinct credentials for identical requests requires creating separate request instances.\u003c/p\u003e\n"],["\u003cp\u003eThe namespace for \u003ccode\u003eRequestExtensions\u003c/code\u003e is \u003ccode\u003eGoogle.Apis.Auth.OAuth2\u003c/code\u003e, and the assembly it belongs to is \u003ccode\u003eGoogle.Apis.Auth.dll\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
