Startup.cs

using System;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Insight.Database.Providers.MySql;
using BisHub.Services;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using Microsoft.AspNetCore.Authentication.JwtBearer;

namespace BisHub
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

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

            services.AddCors(options =>
            {
                options.AddPolicy("AllowBisHub",
                    builder =>
                    {
                        if (Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") == "Production")
                        {
                            string[] origins = Environment.GetEnvironmentVariable("ALLOWED_DOMAINS").Split(",");
                            builder.WithOrigins(origins);
                        }
                        else
                        {
                            builder.AllowAnyOrigin();
                        }
                        builder.AllowCredentials();
                        builder.AllowAnyHeader();
                        builder.AllowAnyMethod();
                    });
            });
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);



            var key = Encoding.ASCII.GetBytes(Environment.GetEnvironmentVariable("JWT_SECRET"));
            services.AddAuthentication(x =>
            {
                x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
            })
            .AddJwtBearer(x =>
            {
                x.RequireHttpsMetadata = false;
                x.SaveToken = true;
                x.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuerSigningKey = true,
                    IssuerSigningKey = new SymmetricSecurityKey(key),
                    ValidateIssuer = false,
                    ValidateAudience = false
                };
            });

            // configure DI for application services
            services.AddScoped<IUserService, UserService>();

        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
                app.UseHttpsRedirection();

            }
            app.UseAuthentication();

            app.UseMvc();

            MySqlInsightDbProvider.RegisterProvider();
        }
    }
}