Added authentication and authorization, updated dependency injections, removed hard-coded connection string

SchengenVisaApi/SchengenVisaApi/DependencyInjection.cs

@@ -1,6 +1,10 @@
 using System.Reflection;
+using System.Text;
 using ApplicationLayer;
 using Infrastructure;
+using Infrastructure.Auth;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.IdentityModel.Tokens;
 
 namespace SchengenVisaApi;
 
@@ -8,21 +12,61 @@ namespace SchengenVisaApi;
 public static class DependencyInjection
 {
     /// Add needed services
-    public static IServiceCollection RegisterServices(this IServiceCollection services)
+    public static void RegisterServices(this WebApplicationBuilder builder)
     {
-        services
-            .AddInfrastructure()
+        var config = builder.Configuration;
+        var environment = builder.Environment;
+
+        builder.Services
+            .AddInfrastructure(config, environment.IsDevelopment())
             .AddApplicationLayer()
-            .AddPresentation();
+            .AddAuth(config)
+            .AddPresentation(environment);
+    }
+
+    /// Add services needed for Presentation layer
+    private static void AddPresentation(this IServiceCollection services,
+        IWebHostEnvironment environment)
+    {
+        if (environment.IsDevelopment())
+        {
+            services.AddSwagger();
+        }
+
+        services.AddControllers();
+    }
+
+    /// Adds authentication, authorization and token generator
+    private static IServiceCollection AddAuth(this IServiceCollection services, IConfigurationManager configurationManager)
+    {
+        var parameters = new TokenValidationParameters
+        {
+            ValidIssuer = configurationManager["JwtSettings:Issuer"],
+            ValidAudience = configurationManager["JwtSettings:Audience"],
+            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(configurationManager["JwtSettings:Key"]!)),
+            ValidateIssuer = true,
+            ValidateAudience = true,
+            ValidateLifetime = true,
+            ValidateIssuerSigningKey = true
+        };
+
+        services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+            .AddJwtBearer(opts => opts.TokenValidationParameters = parameters);
+        services.AddAuthorization();
+
+        services.AddTokenGenerator(new TokenGeneratorOptions(
+            Issuer: parameters.ValidIssuer!,
+            Audience: parameters.ValidAudience!,
+            Credentials: new SigningCredentials(parameters.IssuerSigningKey, SecurityAlgorithms.HmacSha256),
+            ValidTime: TimeSpan.FromMinutes(30)
+        ));
 
         return services;
     }
 
-    /// Add services needed for Presentation layer
-    private static void AddPresentation(this IServiceCollection services)
+    /// Add swagger
+    private static void AddSwagger(this IServiceCollection services)
     {
-        services.AddControllers();
-        services.AddEndpointsApiExplorer();
         services.AddSwaggerGen(options =>
         {
             var xmlFilename = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";