Develop Reference

How to get information about all LexChatBots under a server with using AWSSDKCore.dll and AWSSDKLex.dll in C#

Recently when working with Lex in C#, I have referenced AWSCore.dll and AWSLex.dll and still trying to get a method that exposes all available Lexchatbots that I created in the Aamazon server.
var amazonPostRequest = new Amazon.Lex.Model.PostContentRequest();
var amazonPostResponse = new Amazon.Lex.Model.PostContentResponse();
used both methods to get all other information. Methods in request for bot name and alias is for setting and there is no method in response for getting available Lexchatbots in the server.

I don't believe that the Lex SDK supports this call directly.
Use the AWS Lex REST API to get a list of bots:
GET https://<your aws region endpoint>/bots/
https://docs.aws.amazon.com/lex/latest/dg/API_GetBots.html

After a long research I found the answer to my problem, It may help others.
First we need to add the AWSSDK.LexModelBuildingService through Nuget. This will add reference to the DLL.
From that all methods already exposed. We need to create both GetBotsRequest and GetBotsResponse methods.
var botRequest = new Amazon.LexModelBuildingService.Model.GetBotsRequest();
var botResponse = new Amazon.LexModelBuildingService.Model.GetBotsResponse();
Then we need to call lex model building service client
var amazonmodel = new AmazonLexModelBuildingServiceClient("YourAccesKeyId","YourSecretAccessKey",Amazon.RegionEndpoint.USEast1);
After that we can get the response of inbuilt method of GetBots()
botResponse = amazonmodel.GetBots(botRequest);
We will get the list of bots metadata
List<Amazon.LexModelBuildingService.Model.BotMetadata> bots = botResponse.Bots;
Every details about each bot created will be available in the array of list of bots
There is almost all methods in getting details from Lex configuration in LexModelBuildingService dll
Note:
In IAM (Identity Access Management) in AWS we need to give Access to have Lex components in Policy section. AWSLexFullAccess
or
atleast arn:aws:lex:region:account-id:bot:* access in policy

Get facebook feed for particular users C#

I am developing a server application that should be able to react to the amount of likes for some of the posts in the user's feed.
I need to get post from users wall.
I'm using Facebook library version 6.4.2
I use the following code to get the posts:
var apiKey = ConfigurationManager.AppSettings["apiKey"];
var secret = ConfigurationManager.AppSettings["secret"];
var client = PostHandler.CreateFacebookClient(apiKey, secret);
var get = client.Get(string.Format("/{0}/feed", pageId));
and/or (both return the same info)
var token =ConfigurationManager.AppSettings["token"];
var get = client.Get(string.Format("/{0}/feed?access_token={1}", pageId, token));
The problem is that using the same set of permissions the json returned from the request above is different from the json returned from json returned from Graph API Explorer methog GET 100000481752436/feed
In my opinion the json returned from my request is missing some posts and the one from the Geaph API all contains the posts from my feed.
Could you please advice, what could I have missed ?

If you are missing some posts in the feed it is most likely that you'll have to check the permissions set again.
Based on the type of posts you are missing you maybe have to add the user_status, user_activities, user_friends, user_checkins or user_games_activity permissions. Please make sure that you're using the correct set of the permissions for your particular task.
If you'll specify the type of the posts you are missing you may get much more helpful answers.

Facebook Retrive Data using Graph API using c#

i have created desktop Facebook application using c# .net. i want to retrieve users message,post and chat history. which is convenient way to retrieve users all information.i have started with Facebook Graph API but i am not getting any example.
can any one help me ?

A bit late to the party but anyway:
Add a reference to System.Net.Http and Newtonsoft.Json
string userToken = "theusertokentogiveyoumagicalpowers";
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("https://graph.facebook.com");
HttpResponseMessage response = client.GetAsync($"me?fields=name,email&access_token={userToken}").Result;
response.EnsureSuccessStatusCode();
string result = response.Content.ReadAsStringAsync().Result;
var jsonRes = JsonConvert.DeserializeObject<dynamic>(result);
var email = jsonRes["email"].ToString();
}

Go to developer.facebook.com -> Tools & Support -> Select Graph API Explorer
Here U get FQL Query, Access Token
Then write code in C#.....
var client = new FacebookClient();
client.AccessToken = Your Access Token;
//show user's profile picture
dynamic me = client.Get("me?fields=picture");
pictureBoxProfile.Load(me.picture.data.url);
//show user's birthday
me = client.Get("me/?fields=birthday");
labelBirthday.Text = Convert.ToString(me.birthday);

http://www.codeproject.com/Articles/380635/Csharp-Application-Integration-with-Facebook-Twitt
I hope this will help you.!!!

you can check the Graph explorer tool on Developer.facebook.com , go to Tools and select graph explorer, its a nice tool which gives you exact idea about what you can fetch by sending "GET" and "POST" method on FB Graph APis

From what i see the app now only uses webhooks to post data to a data endpoint (in your app) at which point you can parse and use this. (FQL is deprecated). This is used for things like messaging.
A get request can be send to the API to get info - like the amt. of likes on your page.
The docs of FB explain the string you have to send pretty nicely. Sending requests can be done with the webclient, or your own webrequests.
https://msdn.microsoft.com/en-us/library/bay1b5dh(v=vs.110).aspx
Then once you have a string of the JSON formatted page you can parse this using JSON.NET library. It's available as a NUGEt package.

Creating a Facebook.JsonArray object from a string, for testing purposes

I'm using the Facebook C# SDK in my project and for testing purposes would like to be able to stub out the FacebookClient and insert my own fake client which will return pre-defined responses to Facebook API calls (I'm only calling the FacebookClient.Get method in my application). Achieving this is pretty easy using a factory pattern and a configurable StructureMap setup.
Apart from one thing...
My fake FacebookClient needs to return Facebook.JsonArray objects.
I've been sifting through the SDK source code, and can see that the SimpleJson class can be used to create JsonArray objects. However it is marked as internal, unless I start messing around and rebuilding the SDK.
Is there a simpler way?

You should use SimpleJson directly. You can get it via the "SimpleJson" NuGet package or on Github. Basically, we don't want people using the Facebook C# SDK as a JSON serializer - which is why we marked the methods you referenced as deprecated.
Github Source: https://github.com/facebook-csharp-sdk/simple-json

Found the answer myself; FacebookClient.DeserializeJson does the trick, although it is deprecated.
var content = /* Previously obtained JSON string */;
var client = new Facebook.FacebookClient();
var result = client.DeserializeJson(content, null);

You could also try using Facebook.Moq for testing purposes.
https://github.com/prabirshrestha/Facebook.Moq
Install-Package Facebook.Moq
var mockFb = FacebookMock.New();
mockFb
.FbSetup()
.ReturnsJson("{\"id\":\"4\",\"name\":\"Mark Zuckerberg\",\"first_name\":\"Mark\",\"last_name\":\"Zuckerberg\",\"link\":\"http:\\/\\/www.facebook.com\\/zuck\",\"username\":\"zuck\",\"gender\":\"male\",\"locale\":\"en_US\"}");
var fb = mockFb.Object;
dynamic result = fb.Get("/4");
Assert.Equal("Mark Zuckerberg", result.name);

How can I use Google Search in my C# project?

i build mini Question Answering System in C#. I need retrieve document by google Search.
What is google tools name, i can use it in my project?
Thanks

One possibility is to set up a custom Google search engine. Then you also need to create a developer key, which I believe is done under the console.
After setting that up, you can make REST style call with code such as the following, which retrieves the results as JSON:
WebClient w = new WebClient();
string result;
string uri;
string googleAPIKey = "your developer key";
string googleEngineID = "your search engine id";
string template = "https://www.googleapis.com/customsearch/v1?key={0}&cx={1}&q={2}&start={3}&alt=json";
int startIndex = 1;
int gathered = 0;
uri = String.Format(template, googleAPIKey, googleEngineID, "yoursearchstring", startIndex);
result = w.DownloadString(uri);
For extracting the information from the JSON results, you can use something like Json.NET. It makes it extremely easy to read the information:
JObject o = JObject.Parse(result);
Then you can directly access the desired information with a single line of code.
One important piece of information is that the search API free usage is extremely limited (100 requests per day). So for a real-world application it would probably be necessary to pay for the search. But depending on how you use it, maybe 100 requests per day is sufficient. I wrote a little mashup using the Google search API to search for Stackoverflow site information of interest and then used the StackExchange API to retrieve the information. For that personal use, it works very well.

I've never used it before (and it's alpha), but take a look at Google APIs for .NET Framework library.