Startup.cs

using System;
using Elasticsearch.Net;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.OpenApi.Models;
using Nest;
using RedisExample.ClassExtensions;
using RedisExample.Data;

namespace RedisExample
{
    public class Startup
    {
        public IConfiguration Configuration { get; }

        private readonly IWebHostEnvironment _webHostEnvironment;

        public Startup(IConfiguration configuration, IWebHostEnvironment webHostEnvironment)
        {
            Configuration = configuration;
            _webHostEnvironment = webHostEnvironment;
        }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddStackExchangeRedisCache(options =>
            {
                options.Configuration = Configuration.GetConnectionString("redis");
                options.InstanceName = "RedisExample";
            });

            services.AddElasticsearch(Configuration);

            services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());

            services.AddScoped<IBusinessRepository, BusinessRepository>();

            services.AddControllers();
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "RedisExample", Version = "v1" });
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IHostApplicationLifetime hostApplicationLifetime, IDistributedCache distributedCache)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseSwagger();
                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "RedisExample v1"));
            }
            else
            {
                app.UseExceptionHandler("/Error");
                app.UseHsts();
            }

            if (!env.IsDevelopment())
                app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}