Use Google Analytics API to show information in C#

Question

I been looking for a good solution all day but google evolve so fast that I can\'t find something working. What I want to do is that, I have a Web app that has an admin sect

Answer 1

Another Working Approach

Add below code in the ConfigAuth

  var googleApiOptions = new GoogleOAuth2AuthenticationOptions()
        {
            AccessType = "offline", // can use only if require
            ClientId = ClientId,
            ClientSecret = ClientSecret,
            Provider = new GoogleOAuth2AuthenticationProvider()
            {
                OnAuthenticated = context =>
                {
                    context.Identity.AddClaim(new Claim("Google_AccessToken", context.AccessToken));

                    if (context.RefreshToken != null)
                    {
                        context.Identity.AddClaim(new Claim("GoogleRefreshToken", context.RefreshToken));
                    }
                    context.Identity.AddClaim(new Claim("GoogleUserId", context.Id));
                    context.Identity.AddClaim(new Claim("GoogleTokenIssuedAt", DateTime.Now.ToBinary().ToString()));
                    var expiresInSec = 10000;
                    context.Identity.AddClaim(new Claim("GoogleTokenExpiresIn", expiresInSec.ToString()));


                    return Task.FromResult(0);
                }
            },

            SignInAsAuthenticationType = DefaultAuthenticationTypes.ApplicationCookie
        };
        googleApiOptions.Scope.Add("openid"); // Need to add for google+ 
        googleApiOptions.Scope.Add("profile");// Need to add for google+ 
        googleApiOptions.Scope.Add("email");// Need to add for google+ 
        googleApiOptions.Scope.Add("https://www.googleapis.com/auth/analytics.readonly");

        app.UseGoogleAuthentication(googleApiOptions);

Add below code, name spaces and relative references

 using Google.Apis.Analytics.v3;
 using Google.Apis.Analytics.v3.Data;
 using Google.Apis.Auth.OAuth2;
 using Google.Apis.Auth.OAuth2.Flows;
 using Google.Apis.Auth.OAuth2.Responses;
 using Google.Apis.Services;
 using Microsoft.AspNet.Identity;
 using Microsoft.Owin.Security;
 using System;
 using System.Threading.Tasks;
 using System.Web;
 using System.Web.Mvc;

public class HomeController : Controller
{
    AnalyticsService service;
    public IAuthenticationManager AuthenticationManager
    {
        get
        {
            return HttpContext.GetOwinContext().Authentication;
        }
    }

    public async Task<ActionResult> AccountList()
    {
        service = new AnalyticsService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = await GetCredentialForApiAsync(),
            ApplicationName = "Analytics API sample",
        });


        //Account List
        ManagementResource.AccountsResource.ListRequest AccountListRequest = service.Management.Accounts.List();
        //service.QuotaUser = "MyApplicationProductKey";
        Accounts AccountList = AccountListRequest.Execute();



        return View();
    }

    private async Task<UserCredential> GetCredentialForApiAsync()
    {
        var initializer = new GoogleAuthorizationCodeFlow.Initializer
        {
            ClientSecrets = new ClientSecrets
            {
                ClientId = ClientId,
                ClientSecret = ClientSecret,
            },
            Scopes = new[] { "https://www.googleapis.com/auth/analytics.readonly" }
        };
        var flow = new GoogleAuthorizationCodeFlow(initializer);

        var identity = await AuthenticationManager.GetExternalIdentityAsync(DefaultAuthenticationTypes.ApplicationCookie);
        if (identity == null)
        {
            Redirect("/Account/Login");
        }

        var userId = identity.FindFirstValue("GoogleUserId");

        var token = new TokenResponse()
        {
            AccessToken = identity.FindFirstValue("Google_AccessToken"),
            RefreshToken = identity.FindFirstValue("GoogleRefreshToken"),
            Issued = DateTime.FromBinary(long.Parse(identity.FindFirstValue("GoogleTokenIssuedAt"))),
            ExpiresInSeconds = long.Parse(identity.FindFirstValue("GoogleTokenExpiresIn")),
        };

        return new UserCredential(flow, userId, token);
    }
}

Add this in the Application_Start() in Global.asax

  AntiForgeryConfig.UniqueClaimTypeIdentifier = ClaimTypes.NameIdentifier;