Minor code edits.

Controllers/GetRandomEmojiController.cs

@@ -11,8 +11,11 @@ namespace SlackThrowReaction.Controllers
   [Route("[controller]")]
   public class GetRandomEmojiController : ControllerBase
   {
-    public GetRandomEmojiController(ILogger<GetRandomEmojiController> _)
+    private readonly ILogger<GetRandomEmojiController> _logger;
+
+    public GetRandomEmojiController(ILogger<GetRandomEmojiController> logger)
     {
+      _logger = logger;
     }
 
     [
@@ -22,18 +25,27 @@ public GetRandomEmojiController(ILogger<GetRandomEmojiController> _)
     ]
     public async Task<JsonResult> Post([FromForm] SlashCommandPayload data)
     {
-      var emoji = data.Text?.ToLower();
+      var emoji = data.Text.ToLower();
 
       if (string.IsNullOrEmpty(emoji))
       {
         return new JsonResult(new
         {
           response_type = "ephemeral",
-          text = "emoji not found bruh :c"
+          text = "your input is incorrect"
         });
       }
 
       var emojiInfo = await EmojiStorage.Get(emoji);
+      if (emojiInfo == null)
+      {
+
+        return new JsonResult(new
+        {
+          response_type = "ephemeral",
+          text = "emoji not found"
+        });
+      }
       var imageUrl = $"https://cdn.betterttv.net/emote/{emojiInfo.Id}/3x";
       var imageData = new ImageData {Emoji = emojiInfo.Code, IconUrl = imageUrl, SearchingEmoji = emoji};
       var imageDataJson = JsonConvert.SerializeObject(imageData);

Model/Model.cs → Model/SlackModel.cs

@@ -32,9 +32,9 @@ public sealed class SlashActionPayload
     [JsonProperty("type")] public string Type { get; set; }
 
     [JsonProperty("token")] public string Token { get; set; }
-    
+
     [JsonProperty("response_url")] public string ResponseUrl { get; set; }
-    
+
     [JsonProperty("user")] public User User { get; set; }
 
     [JsonProperty("actions")] public Action[] Actions { get; set; }
@@ -52,25 +52,21 @@ public sealed class Action
   public sealed class ImageData
   {
     [JsonProperty("emoji")] public string Emoji { get; set; }
-    
+
     [JsonProperty("searchemoji")] public string SearchingEmoji { get; set; }
-    
+
     [JsonProperty("url")] public string IconUrl { get; set; }
   }
 
   public sealed class User
   {
-    [JsonProperty("id")]
-    public string Id { get; set; }
-
-    [JsonProperty("name")]
-    public string Name { get; set; }
-
-    [JsonProperty("username")]
-    public string Username { get; set; }
-
-    [JsonProperty("team_id")]
-    public string TeamId { get; set; }
+    [JsonProperty("id")] public string Id { get; set; }
+
+    [JsonProperty("name")] public string Name { get; set; }
+
+    [JsonProperty("username")] public string Username { get; set; }
+
+    [JsonProperty("team_id")] public string TeamId { get; set; }
   }
 
   public sealed class SlackReply

Program.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 

ResponseElements/EmojiStorage.cs

@@ -12,15 +12,14 @@ public static class EmojiStorage
   {
     private static readonly Random Random = new Random();
 
-    private static readonly Dictionary<string, List<EmojiInfo>> EmojiesByText =
-      new Dictionary<string, List<EmojiInfo>>();
+    private static readonly Dictionary<string, List<EmojiInfo>> EmojiesByText = new();
 
-    public static async Task<EmojiInfo> Get(string emoji, bool force = false)
+    public static async Task<EmojiInfo?> Get(string emoji, bool force = false)
     {
       if (!EmojiesByText.TryGetValue(emoji, out var emojies))
       {
         var apiUrl = $"https://api.betterttv.net/3/emotes/shared/search?query={emoji}&offset=0&limit=30";
-        var result = "";
+        string result;
 
         var request = (HttpWebRequest) WebRequest.Create(apiUrl);
         request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
@@ -36,10 +35,10 @@ public static async Task<EmojiInfo> Get(string emoji, bool force = false)
 
         if (emojies == null)
           return null;
-        
+
         EmojiesByText.Add(emoji, emojies);
       }
-      
+
       var index = Random.Next(emojies.Count);
       var emojiInfo = emojies[index];
 

ResponseElements/SlackResponseManager.cs

@@ -1,5 +1,4 @@
-using Newtonsoft.Json;
-using SlackThrowReaction.Model;
+using SlackThrowReaction.Model;
 
 namespace SlackThrowReaction.ResponseElements
 {

SlackThrowReaction.csproj

@@ -2,6 +2,7 @@
 
     <PropertyGroup>
         <TargetFramework>net5.0</TargetFramework>
+        <Nullable>enable</Nullable>
     </PropertyGroup>
 
     <ItemGroup>