Startup.cs

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Bot.Builder;
using Microsoft.Bot.Builder.Integration.AspNet.Core;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.BotBuilderSamples.Translation;
using Microsoft.Extensions.Hosting;
using Microsoft.Bot.Connector.Authentication;

namespace Microsoft.BotBuilderSamples
{
    /// <summary>
    /// The Startup class configures services and the app's request pipeline.
    /// </summary>
    public class Startup
    {
        public Startup()
        {
        }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHttpClient().AddControllers().AddNewtonsoftJson(options =>
            {
                options.SerializerSettings.MaxDepth = HttpHelper.BotMessageSerializerSettings.MaxDepth;
            });

            // Create the Bot Framework Authentication to be used with the Bot Adapter.
            services.AddSingleton<BotFrameworkAuthentication, ConfigurationBotFrameworkAuthentication>();

            // Create the Bot Adapter with error handling enabled.
            services.AddSingleton<IBotFrameworkHttpAdapter, AdapterWithErrorHandler>();

            // Create the storage we'll be using for User and Conversation state. (Memory is great for testing purposes.)
            services.AddSingleton<IStorage, MemoryStorage>();

            // Create the User state. (Used to store the user's language preference.)
            services.AddSingleton<UserState>();

            // Create the Microsoft Translator responsible for making calls to the Cognitive Services translation service
            services.AddSingleton<MicrosoftTranslator>();

            // Create the Translation Middleware that will be added to the middleware pipeline in the AdapterWithErrorHandler
            services.AddSingleton<TranslationMiddleware>();

            // Create the bot as a transient. In this case the ASP Controller is expecting an IBot.
            services.AddTransient<IBot, MultiLingualBot>();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseDefaultFiles()
                .UseStaticFiles()
                .UseRouting()
                .UseAuthorization()
                .UseEndpoints(endpoints =>
                {
                    endpoints.MapControllers();
                });

            // app.UseHttpsRedirection();
        }
    }
}