Firebase Admin SDK-通过REST API创建匿名用户

Question

REST API调用可通过“ identitytoolkit / v3 / relyingparty / signupNewUser？key = ..”创建匿名用户，效果很好-它返回localId以及idToken和refreshToken-

POST https://www.googleapis.com/identitytoolkit/v3/relyingparty/signupNewUser?key=...

响应

{
  "kind": "identitytoolkit#SignupNewUserResponse",
  "idToken": "...",
  "refreshToken": "...",
  "expiresIn": "3600",
  "localId": "..."
}

现在我需要通过Admin SDK复制相同的内容（至于.NET，这是一个非常有限的版本），所以我下一步-

POST https://www.googleapis.com/identitytoolkit/v3/relyingparty/signupNewUser
Authorization: Bearer %access_token%

我得到的就是这个-

{
  "kind": "identitytoolkit#SignupNewUserResponse",
  "email": "",
  "localId": "..."
}

因此，idToken和refreshToken均不会返回。关于如何解决此问题的任何想法？