Improvements.

Controllers/ActionController.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using SlackThrowReaction.Model;
+
+namespace SlackThrowReaction.Controllers
+{
+  [ApiController]
+  [Route("[controller]")]
+  public class ActionController : ControllerBase
+  {
+    private readonly ILogger<GetRandomEmojiController> _logger;
+
+    public ActionController(ILogger<GetRandomEmojiController> logger)
+    {
+      _logger = logger;
+    }
+
+    [
+      HttpPost,
+      Consumes("application/x-www-form-urlencoded")
+    ]
+    public void Post([FromForm] IFormCollection collection)
+    {
+      var json = collection["payload"];
+      var payload = JsonConvert.DeserializeObject<SlashActionPayload>(json);
+
+      if (payload == null)
+        throw new Exception("No action from response payload");
+
+      var action = payload.Actions.First();
+      var imageUrl = action.Value;
+
+      object response = null;
+
+      if (action.ActionId == ActionType.Send.ToString())
+      {
+        response = new
+        {
+          response_type = "in_channel", //"in_channel"
+          delete_original = "true",
+          attachments = new[]
+          {
+            new
+            {
+              image_url = imageUrl
+            }
+          }
+        };
+      }
+      else if (action.ActionId == ActionType.Remove.ToString())
+      {
+        response = new
+        {
+          delete_original = "true",
+        };
+      }
+      else if (action.ActionId == ActionType.Shuffle.ToString())
+      {
+        response = new
+        {
+          text = "emojiInfo.Code",
+          replace_original = "true",
+          attachments = new[]
+          {
+            new
+            {
+              image_url = imageUrl
+            }
+          }
+        };
+      }
+
+      Call(payload.ResponseUrl, response);
+    }
+
+    private void Call(string url, object result)
+    {
+      var request = WebRequest.Create(url);
+      request.Method = "POST";
+      var json = JsonConvert.SerializeObject(result);
+
+      byte[] byteArray = Encoding.UTF8.GetBytes(json);
+
+      request.ContentType = "application/json";
+      request.ContentLength = byteArray.Length;
+
+      using var reqStream = request.GetRequestStream();
+      reqStream.Write(byteArray, 0, byteArray.Length);
+
+      using var response = request.GetResponse();
+      _logger.LogInformation(((HttpWebResponse)response).StatusDescription);
+
+      using var respStream = response.GetResponseStream();
+
+      using var reader = new StreamReader(respStream);
+      var data = reader.ReadToEnd();
+      _logger.LogInformation(data);
+    }
+  }
+}

Controllers/ThrowController.cs → Controllers/GetRandomEmojiController.cs

@@ -14,15 +14,15 @@ namespace SlackThrowReaction.Controllers
 {
   [ApiController]
   [Route("[controller]")]
-  public class ThrowController : ControllerBase
+  public class GetRandomEmojiController : ControllerBase
   {
-    private readonly ILogger<ThrowController> _logger;
+    private readonly ILogger<GetRandomEmojiController> _logger;
     private static readonly Random _random = new Random();
 
-    private static readonly Dictionary<string, List<EmojiInfo>> _emojiesByText =
+    public static readonly Dictionary<string, List<EmojiInfo>> _emojiesByText =
       new Dictionary<string, List<EmojiInfo>>();
 
-    public ThrowController(ILogger<ThrowController> logger)
+    public GetRandomEmojiController(ILogger<GetRandomEmojiController> logger)
     {
       _logger = logger;
       _logger.Log(LogLevel.Critical, "hello");
@@ -33,7 +33,7 @@ public ThrowController(ILogger<ThrowController> logger)
       Consumes("application/x-www-form-urlencoded"),
       Produces("application/json")
     ]
-    public async Task<JsonResult> Post([FromForm] SlashCommand data)
+    public async Task<JsonResult> Post([FromForm] SlashCommandPayload data)
     {
       var emoji = data.Text?.ToLower();
 
@@ -67,17 +67,17 @@ public async Task<JsonResult> Post([FromForm] SlashCommand data)
 
       var index = _random.Next(emojies.Count);
       var emojiInfo = emojies[index];
+      var imageUrl = $"https://cdn.betterttv.net/emote/{emojiInfo.Id}/3x";
 
       return new JsonResult(new
       {
         response_type = "ephemeral", //"in_channel"
-        delete_original = true,
         attachments = new[]
         {
           new
           {
             text = emojiInfo.Code,
-            image_url = $"https://cdn.betterttv.net/emote/{emojiInfo.Id}/3x"
+            image_url = imageUrl
           }
         },
         blocks = new []
@@ -96,8 +96,8 @@ public async Task<JsonResult> Post([FromForm] SlashCommand data)
                   type = "plain_text",
                   text = "Send"
                 },
-                value = "click_me_123",
-                action_id = "actionId-0"
+                value = imageUrl,
+                action_id = ActionType.Send.ToString()
               },
               new
               {
@@ -108,8 +108,8 @@ public async Task<JsonResult> Post([FromForm] SlashCommand data)
                   type = "plain_text",
                   text = "Shuffle"
                 },
-                value = "click_me_123",
-                action_id = "actionId-1"
+                value = emoji,
+                action_id = ActionType.Shuffle.ToString()
               },
               new
               {
@@ -120,8 +120,8 @@ public async Task<JsonResult> Post([FromForm] SlashCommand data)
                   type = "plain_text",
                   text = "Cancel"
                 },
-                value = "click_me_123",
-                action_id = "actionId-2"
+                value = imageUrl,
+                action_id = ActionType.Remove.ToString()
               }
             }
           }

Model/ActionType.cs

@@ -0,0 +1,9 @@
+namespace SlackThrowReaction.Model
+{
+  public enum ActionType 
+  {
+    Send,
+    Shuffle,
+    Remove
+  }
+}

Properties/launchSettings.json

@@ -20,7 +20,7 @@
     "SlackThrowReaction": {
       "commandName": "Project",
       "dotnetRunMessages": "true",
-      "launchBrowser": true,
+      "launchBrowser": false,
       "launchUrl": "swagger",
       "applicationUrl": "https://localhost:5001;http://localhost:5000",
       "environmentVariables": {