A template for a Reddit Bot written in C# using RedditSharp

Program.cs

using RedditSharp;
using RedditSharp.Things;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

namespace RedditBotTemplate
{
    /* GETTING STARTED:
     * 1. Install the RedditSharp NuGet package (note that this is based on prerelease 2.0.0-CI00075)
     * 2. Fill out the settings below
     * 3. Modify the DoBotLoop method for your bot's logic
     */
    class Program
    {
        //-----------SETTINGS-------------
        private static readonly string username = "";
        private static readonly string password = "";
        private static readonly string clientId = "";
        private static readonly string clientSecret = "";
        private static readonly string redirectUri = "";

        private static readonly string subreddit = "";
        //---------------------------------

        private static readonly string repliedToPath = "RepliedTo.txt";
        private static Reddit redditService;
        private static Subreddit subredditToCheck;

        static void Main()
        {
            if (!File.Exists(repliedToPath))
                File.Create(repliedToPath).Close();

            Auth().Wait();
            DoBotLoop().Wait();
        }

        private static async Task Auth()
        {
            BotWebAgent agent = new BotWebAgent(username, password, clientId, clientSecret, redirectUri);
            redditService = new Reddit(agent, true);

            subredditToCheck = await redditService.GetSubredditAsync(subreddit);
        }

        private static async Task DoBotLoop()
        {
            while (true)
            {
                try
                {
                    List<Comment> comments = await subredditToCheck.GetComments(500).ToList(); //Adjust the recent comments to get. Alternatively, use "GetPosts" to monitor posts
                    string repliedTo = File.ReadAllText(repliedToPath);
                    comments.RemoveAll(c => c.IsArchived || repliedTo.Contains(c.Id));

                    foreach (Comment comment in comments)
                    {
                        //Fill out your logic here for if you should reply to the comment and use `async comment.ReplyAsync(message)`

                        File.AppendAllLines(repliedToPath, new string[] { comment.Id }); //Log comment been replied to
                    }
                }
                catch (Exception e)
                {
                    if (e is AggregateException aggregateException)
                    {
                        foreach (Exception innerException in aggregateException.InnerExceptions)
                        {
                            Console.WriteLine($"Inner exception ({innerException.GetType()}: {innerException.Message}) thrown at \n\n{innerException.StackTrace}");
                        }
                    }

                    //Handle all sorts of "timeout" or internet connection errors
                    if (e is RedditHttpException ||
                        e is HttpRequestException ||
                        e is WebException ||
                        e is TaskCanceledException ||
                        e is OperationCanceledException)
                    {
                        Console.WriteLine($"\tIssue connecting to reddit: {e.Message}");
                    }
                    else //If it isn't one of the errors above, it might be more serious. So throw it to be caught as an unhandled exception
                    {
                        Console.WriteLine($"Exception ({e.GetType()}: {e.Message}) thrown at \n\n{e.StackTrace}");
                        throw;
                    }
                }
            }
        }
    }
}