issue can't receive data after success login razor page ?

Question

 I work on asp.net razor page Login user name and password . I call Web API validate user

name and password . my issue I face it I can't receive data returned after login success

JSON data returned from web API after success login username and password

{
    "message": "success",
    "status": true,
    "data": {
        "userID": "9595",
        "userName": "ADC Test User",
        "userRole": "Administrator",
        "environment": "PY"
    },
    "statusCode": "0000"
}

I call api from razor page login as below :

public async Task OnPost()
{
    UserLoginViewModel loginview = new UserLoginViewModel();
    loginview.UserID = User.UserName;
    loginview.Password = User.vPassword;
    loginview.Environment = "PY";
    loginview.IsUserVerify = false;

    var json = JsonSerializer.Serialize(loginview);
    var content = new StringContent(json, Encoding.UTF8, "application/json");
    request.Content = content;
    request.Headers.Add("App-Source","ADCPORTAL");
    var response = await SendAsync(request);
    if (response.IsSuccessStatusCode)
    { 
    }
}

I need to return data from login success where message=success as logic below :

if (response.IsSuccessStatusCode)
{
    IF(message=="success" AND status="true")
    {
        receive `user id and username and user role and password`
    }
}

image below explain what i need to do exactly