Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.OpenApi.Models;
using Microsoft.EntityFrameworkCore;
using Pomelo.EntityFrameworkCore.MySql.Infrastructure;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using CidadeAlta_CodigoPenal.Models;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using System.Reflection;
using System.IO;

namespace CidadeAlta_CodigoPenal
{
    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)
        {
            MySqlServerVersion serverVersion = new MySqlServerVersion(new Version(8, 0, 24));

            services.AddDbContext<CriminalCodeContext>(opt =>
               opt.UseMySql(Configuration.GetConnectionString("DbString"), serverVersion));

            services.AddControllers();
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "CidadeAlta_CodigoPenal", Version = "v1" });
                var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
                var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
                c.IncludeXmlComments(xmlPath);

                c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
                {
                    Description = @"JWT Authorization Scheme. You can get your token in login endpoint.
                                   Enter 'Bearer' [SPACE] and the your token. 
                                   Exemple: 'Bearer your_token'.",
                    Name = "Authorization",
                    In = ParameterLocation.Header,
                    Type = SecuritySchemeType.ApiKey,
                    Scheme = "Bearer"
                });
                c.AddSecurityRequirement(new OpenApiSecurityRequirement()
                {
                    {
                        new OpenApiSecurityScheme
                        {
                            Reference = new OpenApiReference
                            {
                                Type = ReferenceType.SecurityScheme,
                                Id = "Bearer"
                            },
                            Scheme = "oauth2",
                            Name = "Bearer",
                            In = ParameterLocation.Header,
                        },
                        new List<string>()
                    }
                });
            });

            var key = Encoding.UTF8.GetBytes(Configuration["Jwt:Key"]);
            services.AddAuthentication(opt =>
            {
                opt.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                opt.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
               };

           });
            services.AddSingleton<IConfiguration>(Configuration);
        }

        // 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.UseSwagger();
                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "CidadeAlta_CodigoPenal v1"));
            }

            app.UseHttpsRedirection();

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

            app.UseAuthentication();
            app.UseAuthorization();

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