Merge pull request #114 from progaudi/feature/tutorial-for-tarantool.org

Tutorial for tarantool.org

Author: aensidhe

samples/tarantool.org/README.md

@@ -0,0 +1,66 @@
+# Tutorial
+
+The most commonly used C# driver is [progaudi.tarantool](https://github.com/progaudi/progaudi.tarantool). It was previously named `tarantool-csharp`. It is not supplied as part of the Tarantool repository; it must be installed separately. The makers recommend cross-platform installation using Nuget. To be consistent with the other instructions in this chapter, here is an way to install the driver directly on Ubuntu 16.04.
+
+## Install .net core from Microsoft
+
+Use .net core installation instructions at https://www.microsoft.com/net/core#linuxubuntu
+NOTE:
+1. Mono will not work, nor will .Net from xbuild. Only .net core supported on linux and mac.
+2. Read the Microsoft End User License Agreement first, because it is not an ordinary open-source agreement and there will be a message during installation saying “This software may collect information about you and your use of the software, and send that to Microsoft.”
+3. You can opt-out from telemetry by setting environment variable. See instructions at https://docs.microsoft.com/en-us/dotnet/core/tools/telemetry#behavior
+
+
+## Create new console project
+
+```
+cd ~
+mkdir progaudi.tarantool.test
+cd progaudi.tarantool.test
+dotnet new console
+```
+
+## Add progaudi.tarantool reference
+
+```
+dotnet add package progaudi.tarantool
+```
+
+## Change code in Program.cs
+
+```
+cat <<EOT > Program.cs
+using System;
+using System.Threading.Tasks;
+using ProGaudi.Tarantool.Client;
+
+public class HelloWorld
+{
+  static public void Main ()
+  {
+    Test().GetAwaiter().GetResult();
+  }
+  static async Task Test()
+  {
+    var box = await Box.Connect("127.0.0.1:3301");
+    var schema = box.GetSchema();
+    var space = await schema.GetSpace("examples");
+    await space.Insert((99999, "BB"));
+  }
+}
+EOT
+
+```
+
+## Build and run your app
+
+Before trying to run, check that the server is listening at `localhost:3301` and that the space `examples` exists, as described [earlier](https://tarantool.org/en/doc/1.7/book/connectors/index.html#index-connector-setting).
+
+```
+dotnet restore
+dotnet run
+```
+
+The program will connect using an application-specific definition of the space. The program will open a socket connection with the Tarantool server at `localhost:3301`, then send an INSERT request, then — if all is well — end without saying anything. If Tarantool is not running on localhost with listen port = 3301, or if user guest does not have authorization to connect, or if the insert request fails for any reason, the program will print an error message, among other things (stacktrace, etc).
+
+The example program only shows one request and does not show all that’s necessary for good practice. For that, please see the [progaudi.tarantool](https://github.com/progaudi/progaudi.tarantool) driver repository.