Login With LinkedIn on Xamarin.Android

[exosk...@gmail.com]

Hello, im trying to create a way to login with linkedin and create or login the parse.com user.

This is what i have try so far but im getting, invalid parse session token (authentication works, the oriblem occurs with parse.com):

void LoginToLinkedIn()
        {
            var auth = new OAuth2Authenticator(
                clientId: "**",
                clientSecret: "**",
                scope: "r_basicprofile r_emailaddress",
                authorizeUrl: new Uri("https://www.linkedin.com/oauth/v2/authorization"),
                redirectUrl: new Uri("https://www.linkedin.com/auth/callback"),
                accessTokenUrl: new Uri("https://www.linkedin.com/oauth/v2/accessToken")
            );


            // If authorization succeeds or is canceled, .Completed will be fired.
            auth.AllowCancel = true;
            auth.ShowUIErrors = false;
            //auth.Error += (sender, e) => auth.OnCancelled();
            auth.Completed += async (sender, eventArgs) => {
            if (!eventArgs.IsAuthenticated)
            {
                    System.Console.Out.WriteLine("Authentication error");
                    return;
            }
                    else
                    {
                    System.Console.Out.WriteLine("Authentication Succeded");
                    string dd = eventArgs.Account.Username;
                    var values = eventArgs.Account.Properties;
                    foreach (KeyValuePair<string, string> temp in values)
                    {
                       System.Console.Out.WriteLine("eventArgs.Account.Properties: Temp.Key: {0}, Temp.Value: {1}", temp.Key, temp.Value);
                    }
                    var access_token = values["access_token"];
                        var request = HttpWebRequest.Create(string.Format(@"https://api.linkedin.com/v1/people/~:(id,firstName,lastName,picture-url)?format=json&oauth2_access_token=" + access_token, ""));
                        request.ContentType = "application/json";
                        request.Method = "GET";


                        using (HttpWebResponse response = await request.GetResponseAsync() as HttpWebResponse)
                        {
                            System.Console.Out.WriteLine("Entered, Stautus Code is: {0}", response.StatusCode);


                            using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                            {
                                var content = reader.ReadToEnd();
                                if (!string.IsNullOrWhiteSpace(content))
                                {


                                    System.Console.Out.WriteLine(content);
                                }
                            var result = JsonConvert.DeserializeObject<Dictionary<string,string>>(content);
                            var userID = result["id"];
                            var name = result["firstName"] + " " + result["lastName"];
                            application.currentUserName = name;


                           var _access_token = eventArgs.Account.Properties["access_token"];
                            Java.Net.URL myUri = new Java.Net.URL(result["pictureUrl"]);
                            imageUrl = myUri;
                            realName = name;


                            var authData = new Dictionary<string, string>();
                            authData.Add("user_id", userID.ToString());
                            authData.Add("screen_name", name.ToString());
                            authData.Add("oauth_token", _access_token.ToString());
                            await ParseLoginOrCreateLinkedIn(authData);
                        }
                        }
                }
            };


            var ui = auth.GetUI(this);
            StartActivity(ui);
        }




public async Task<ParseUser> ParseLoginOrCreateLinkedIn(Dictionary<string, string> authInfo)
        {
            var rest = new RestSharp.RestClient("https://api.parse.com");
            var req = new RestSharp.RestRequest("1/users/", RestSharp.Method.POST);
            req.AddHeader("X-Parse-Application-Id", "nDGlfLgW2Ml2AV9jgFOiNVE1sCstKrvVaOOVyGkM");
            req.AddHeader("X-Parse-REST-API-Key", "J1YIQXRZ8JeyKEquXGffuTq5JhKjxDtEmMM2ggb4");
            req.AddHeader("Content-Type", "application/json");


            var payload = "{ \"authData\": { \"linkedin\": { ";
            payload += "\"id\": \"" + authInfo["user_id"] + "\", ";
            payload += "\"screen_name\": \"" + authInfo["screen_name"] + "\", ";
            payload += "\"auth_token\": \"" + authInfo["oauth_token"] + "\", ";
            payload += "} } }";


            req.AddParameter("application/json", payload, RestSharp.ParameterType.RequestBody);


            RestSharp.IRestResponse res = null;
            var result = await Task<JContainer>.Run(() =>
            {
                res = rest.Execute(req);
                var content = res.Content;
                return JsonConvert.DeserializeObject<Newtonsoft.Json.Linq.JContainer>(content);
            });
            var sessionToken = (String)result["sessionToken"];
            var objectId = (String)result["objectId"];


            if (res.StatusCode == System.Net.HttpStatusCode.Created)
            {
                req = new RestSharp.RestRequest("1/users/" + objectId, RestSharp.Method.PUT);
                req.AddHeader("X-Parse-Application-Id", "nDGlfLgW2Ml2AV9jgFOiNVE1sCstKrvVaOOVyGkM");
                req.AddHeader("X-Parse-REST-API-Key", "J1YIQXRZ8JeyKEquXGffuTq5JhKjxDtEmMM2ggb4");
                req.AddHeader("X-Parse-Session-Token", sessionToken);
                req.AddHeader("Content-Type", "application/json");


                req.AddParameter("application/json", "{ \"username\": \"" + authInfo["screen_name"] + "\" }", RestSharp.ParameterType.RequestBody);
                result = await Task<JContainer>.Run(() =>
                {
                    res = rest.Execute(req);
                    var content = res.Content;
                    return JsonConvert.DeserializeObject<Newtonsoft.Json.Linq.JContainer>(content);
                });
            }


            await ParseUser.BecomeAsync(sessionToken);


            if (ParseUser.CurrentUser.ContainsKey("Name"))
                ParseUser.CurrentUser["Name"] = realName;
            else
                ParseUser.CurrentUser.Add("Name", realName);
            application.currentUserName = realName;
            var webClient = new WebClient();
            byte[] bytes = null;
            application.currentUserImageUrl = imageUrl.ToString();
            bytes = await webClient.DownloadDataTaskAsync(imageUrl.ToString());
            ParseFile saveImageFile = new ParseFile("profileImage.jpg", bytes);
            if (ParseUser.CurrentUser.ContainsKey("profile_pic"))
                ParseUser.CurrentUser["profile_pic"] = saveImageFile;
            else
                ParseUser.CurrentUser.Add("profile_pic", saveImageFile);
            application.currentUser = ParseUser.CurrentUser;
            await ParseUser.CurrentUser.SaveAsync();
            DisplayLoadingMessage(false);
            ChangeScreen();


            return ParseUser.CurrentUser;
        }

[exosk...@gmail.com]

im seeing here: https://parseplatform.github.io/docs/rest/guide/ that for logging in we need

curl -X POST \ -H "X-Parse-Application-Id: ${APPLICATION_ID}" \ -H "X-Parse-REST-API-Key: ${REST_API_KEY}" \ -H "X-Parse-Revocable-Session: 1" \ -H "Content-Type: application/json" \ -d '{ "authData": { "twitter": { "id": "12345678", "screen_name": "ParseIt", "consumer_key": "SaMpLeId3X7eLjjLgWEw", "consumer_secret": "SaMpLew55QbMR0vTdtOACfPXa5UdO2THX1JrxZ9s3c", "auth_token": "12345678-SaMpLeTuo3m2avZxh5cjJmIrAfx4ZYyamdofM7IjU", "auth_token_secret": "SaMpLeEb13SpRzQ4DAIzutEkCE2LBIm2ZQDsP3WUU" } } }' \ https://api.parse.com/1/users

but LinkedIn doesnt give me consumer_key, consumer_secret and auth_token_secret

[casag...@back4app.com]

Hello!

If you've already migrated to us, you'll need to change the URLs of your code and POST request to:

https://parseapi.back4app.com/<your_Class_Name>

and removing the "/1" from your class paths.

Let me know if that helped.

Best!

[exosk...@gmail.com]

Hello, what do you mean by yourClassName?

[casag...@back4app.com]

From the code and the POST request that you've sent you were trying to reach "users". Is that a class of yours?

If it's not you can use the same link that I sent you but using the function you want to call in the POST instead: 

https://parseapi.back4app.com/<your_Function>

Best!