Startup.cs

using System.Net;
using System.Text;
using AutoMapper;
using CommunitySocial.API.Data;
using CommunitySocial.API.Helpers;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Diagnostics;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.IdentityModel.Tokens;

namespace CommunitySocial.API
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        public void ConfigureDevelopmentServices(IServiceCollection services)
        {
            services.AddDbContext<DataContext>(x => x.UseSqlite(Configuration.GetConnectionString("DefaultConnection")));

            ConfigureServices(services);
        }

        public void ConfigureProductionServices(IServiceCollection services)
        {
            services.AddDbContext<DataContext>(x => x.UseMySql(Configuration.GetConnectionString("DefaultConnection")));

            ConfigureServices(services);
        }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            
            services.AddControllers().AddNewtonsoftJson(opt => {

                opt.SerializerSettings.ReferenceLoopHandling = 
                Newtonsoft.Json.ReferenceLoopHandling.Ignore;
            });
            services.AddCors();
            services.Configure<CloudinarySettings>(Configuration.GetSection("CloudinarySettings"));
            services.AddAutoMapper(typeof(Startup));
            services.AddScoped<IAuthRepository, AuthRepository>();
            services.AddScoped<ISocialRepository, SocialRepository>();

            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                    .AddJwtBearer(options => {
                        options.TokenValidationParameters = new TokenValidationParameters
                        {
                            ValidateIssuerSigningKey = true,
                            IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII
                            .GetBytes(Configuration.GetSection("AppSettings:Token").Value)),
                            ValidateIssuer = false,
                            ValidateAudience = false
                        };
                    });
                    
            services.AddScoped<LogUserActivity>();

            
        }



        // 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();
            }
            else {
                app.UseExceptionHandler(builder => {
                    builder.Run(async context => {
                        context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;

                        var error = context.Features.Get<IExceptionHandlerFeature>();
                        if (error != null) {

                            context.Response.AddApplicationError(error.Error.Message);
                            await context.Response.WriteAsync(error.Error.Message);
                        }

                    }); 
                });
            }

            // app.UseHttpsRedirection();
            app.UseCors(x => x.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader());

            app.UseRouting();
            app.UseAuthentication(); 

            app.UseAuthorization();

            app.UseDefaultFiles();
            app.UseStaticFiles();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
                endpoints.MapFallbackToController("Index", "Fallback");
            });
        }
    }
}