Angular 15 Tutorials for beginners 

After the releasing Angular 14 this year, now Angular 15 is released this month (November 2022) with a couple of features including performance improvement. Previously we saw a new feature added to Angular 14. The released Angular 15 version is a stable version.

 

FastEndpoints offers a more elegant solution than the Minimal APIs and MVC Controllers with the goal of increasing developer productivity. Performance is on par with the Minimal APIs and is faster; uses less memory; and outperforms a MVC Controller by about 34k requests per second on a Ryzen 3700X desktop. 

A new feature recently introduced into Github, Github Actions allow you to automate your workflow by letting Github take care of a number of processes which can be triggered by a variety of events on the platform, be it pushing code, making a release or creat 

 #region Properties

        /// <summary>
        /// Gets or sets the product variant identifier
        /// </summary>
        public int ProductVariantId { get; set; }

        /// <summary>
        /// Gets or sets the product identifier
        /// </summary>
        public int ProductId { get; set; }

        /// <summary>
        /// Gets or sets the name
        /// </summary>
        public string Name { get; set; }

        /// <summary>
        /// Gets or sets the SKU
        /// </summary>
        public string SKU { get; set; }

        /// <summary>
        /// Gets or sets the description
        /// </summary>
        public string Description { get; set; }

        /// <summary>
        /// Gets or sets the admin comment
        /// </summary>
        public string AdminComment { get; set; }

        /// <summary>
        /// Gets or sets the manufacturer part number
        /// </summary>
        public string ManufacturerPartNumber { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the product variant is gift card
        /// </summary>
        public bool IsGiftCard { get; set; }

        /// <summary>
        /// Gets or sets the gift card type
        /// </summary>
        public int GiftCardType { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the product variant is download
        /// </summary>
        public bool IsDownload { get; set; }

        /// <summary>
        /// Gets or sets the download identifier
        /// </summary>
        public int DownloadId { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether this downloadable product can be downloaded unlimited number of times
        /// </summary>
        public bool UnlimitedDownloads { get; set; }

        /// <summary>
        /// Gets or sets the maximum number of downloads
        /// </summary>
        public int MaxNumberOfDownloads { get; set; }

        /// <summary>
        /// Gets or sets the number of days during customers keeps access to the file.
        /// </summary>
        public int? DownloadExpirationDays { get; set; }

        /// <summary>
        /// Gets or sets the download activation type
        /// </summary>
        public int DownloadActivationType { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the product variant has a sample download file
        /// </summary>
        public bool HasSampleDownload { get; set; }

        /// <summary>
        /// Gets or sets the sample download identifier
        /// </summary>
        public int SampleDownloadId { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the product has user agreement
        /// </summary>
        public bool HasUserAgreement { get; set; }

        /// <summary>
        /// Gets or sets the text of license agreement
        /// </summary>
        public string UserAgreementText { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the product variant is recurring
        /// </summary>
        public bool IsRecurring { get; set; }

        /// <summary>
        /// Gets or sets the cycle length
        /// </summary>
        public int CycleLength { get; set; }

        /// <summary>
        /// Gets or sets the cycle period
        /// </summary>
        public int CyclePeriod { get; set; }

        /// <summary>
        /// Gets or sets the total cycles
        /// </summary>
        public int TotalCycles { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the entity is ship enabled
        /// </summary>
        public bool IsShipEnabled { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the entity is free shipping
        /// </summary>
        public bool IsFreeShipping { get; set; }

        /// <summary>
        /// Gets or sets the additional shipping charge
        /// </summary>
        public decimal AdditionalShippingCharge { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the product variant is marked as tax exempt
        /// </summary>
        public bool IsTaxExempt { get; set; }

        /// <summary>
        /// Gets or sets the tax category identifier
        /// </summary>
        public int TaxCategoryId { get; set; }

        /// <summary>
        /// Gets or sets a value indicating how to manage inventory
        /// </summary>
        public int ManageInventory { get; set; }

        /// <summary>
        /// Gets or sets the stock quantity
        /// </summary>
        public int StockQuantity { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display stock availability
        /// </summary>
        public bool DisplayStockAvailability { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display stock quantity
        /// </summary>
        public bool DisplayStockQuantity { get; set; }

        /// <summary>
        /// Gets or sets the minimum stock quantity
        /// </summary>
        public int MinStockQuantity { get; set; }

        /// <summary>
        /// Gets or sets the low stock activity identifier
        /// </summary>
        public int LowStockActivityId { get; set; }

        /// <summary>
        /// Gets or sets the quantity when admin should be notified
        /// </summary>
        public int NotifyAdminForQuantityBelow { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to allow orders when out of stock
        /// </summary>
        public int Backorders { get; set; }

        /// <summary>
        /// Gets or sets the order minimum quantity
        /// </summary>
        public int OrderMinimumQuantity { get; set; }

        /// <summary>
        /// Gets or sets the order maximum quantity
        /// </summary>
        public int OrderMaximumQuantity { get; set; }

        /// <summary>
        /// Gets or sets the warehouse identifier
        /// </summary>
        public int WarehouseId { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to disable buy button
        /// </summary>
        public bool DisableBuyButton { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to show "Call for Pricing" or "Call for quote" instead of price
        /// </summary>
        public bool CallForPrice { get; set; }

        /// <summary>
        /// Gets or sets the price
        /// </summary>
        public decimal Price { get; set; }

        /// <summary>
        /// Gets or sets the old price
        /// </summary>
        public decimal OldPrice { get; set; }

        /// <summary>
        /// Gets or sets the product cost
        /// </summary>
        public decimal ProductCost { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether a customer enters price
        /// </summary>
        public bool CustomerEntersPrice { get; set; }

        /// <summary>
        /// Gets or sets the minimum price entered by a customer
        /// </summary>
        public decimal MinimumCustomerEnteredPrice { get; set; }

        /// <summary>
        /// Gets or sets the maximum price entered by a customer
        /// </summary>
        public decimal MaximumCustomerEnteredPrice { get; set; }

        /// <summary>
        /// Gets or sets the weight
        /// </summary>
        public decimal Weight { get; set; }

        /// <summary>
        /// Gets or sets the length
        /// </summary>
        public decimal Length { get; set; }

        /// <summary>
        /// Gets or sets the width
        /// </summary>
        public decimal Width { get; set; }

        /// <summary>
        /// Gets or sets the height
        /// </summary>
        public decimal Height { get; set; }

        /// <summary>
        /// Gets or sets the picture identifier
        /// </summary>
        public int PictureId { get; set; }

        /// <summary>
        /// Gets or sets the available start date and time
        /// </summary>
        public DateTime? AvailableStartDateTime { get; set; }

        /// <summary>
        /// Gets or sets the shipped end date and time
        /// </summary>
        public DateTime? AvailableEndDateTime { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the entity is published
        /// </summary>
        public bool Published { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the entity has been deleted
        /// </summary>
        public bool Deleted { get; set; }

        /// <summary>
        /// Gets or sets the display order
        /// </summary>
        public int DisplayOrder { get; set; }

        /// <summary>
        /// Gets or sets the date and time of instance creation
        /// </summary>
        public DateTime CreatedOn { get; set; }

        /// <summary>
        /// Gets or sets the date and time of instance update
        /// </summary>
        public DateTime UpdatedOn { get; set; }
        /// <summary>
        /// Gets or sets CouponCreated
        /// </summary>
        public bool? CouponetCreated { get; set; }
        /// <summary>
        /// Gets or sets the date and time of CouponCreated
        /// </summary>
        public DateTime? CouponetCreatedOn { get; set; }
        #endregion

? What is Runtime Performance

To discuss any type of application performance, it’s important to define what we mean

AspNetCoreRateLimit is an ASP.NET Core rate limiting solution designed to control the rate of requests that clients can make to a Web API or MVC app based on IP address or client ID. The AspNetCoreRateLimit package contains an IpRateLimitMiddleware and a ClientRateLimitMiddleware, with each middleware you can set multiple limits for different scenarios like allowing an IP or Client to make a maximum number of calls in a time interval like per second, 15 minutes, etc. You can define these limits to address all requests made to an API or you can scope the limits to each API URL or HTTP verb and path.

public class TravelAgent
{
    public TravelAgent()
    {
        this.Bookings = new HashSet<Booking>();
    }

    public int AgentId { get; set; }
    public string Name { get; set; }
    public virtual ICollection<Booking> Bookings { get; set; }
}

public class Booking
{
    public int BookingId { get; set; }
    public int AgentId { get; set; }
    public string Customer { get; set; }
    public DateTime BookingDate { get; set; }
    public bool Paid { get; set; }
    public virtual TravelAgent TravelAgent { get; set; }
}

<connectionStrings>
  <add name="Recipe3ConnectionString"
    connectionString="Data Source=.;
    Initial Catalog=EFRecipes;
    Integrated Security=True;
    MultipleActiveResultSets=True"
    providerName="System.Data.SqlClient" />
</connectionStrings>

protected void Application_Start()
{
    // Disable Entity Framework Model Compatibilty
    Database.SetInitializer<Recipe1Context>(null);

    // The bidirectional navigation properties between related entities
    // create a self-referencing loop that breaks Web API's effort to
    // serialize the objects as JSON. By default, Json.NET is configured
    // to error when a reference loop is detected. To resolve problem,
    // simply configure JSON serializer to ignore self-referencing loops.
    GlobalConfiguration.Configuration.Formatters.JsonFormatter
        .SerializerSettings.ReferenceLoopHandling =
        Newtonsoft.Json.ReferenceLoopHandling.Ignore;
    ...
}

public static void Register(HttpConfiguration config)
{
    config.Routes.MapHttpRoute(
      name: "ActionMethodSave",
      routeTemplate: "api/{controller}/{action}/{id}",
      defaults: new { id = RouteParameter.Optional });
}

internal class Program
{
    private HttpClient _client;
    private TravelAgent _agent1, _agent2;
    private Booking _booking1, _booking2, _booking3;
    private HttpResponseMessage _response;

    private static void Main()
    {
        Task t = Run();
        t.Wait();
        Console.WriteLine("\nPress <enter> to continue...");
        Console.ReadLine();
    }

    private static async Task Run()
    {
        var program = new Program();
        program.ServiceSetup();
        // do not proceed until clean-up is completed
        await program.CleanupAsync();
        program.CreateFirstAgent();
        // do not proceed until agent is created
        await program.AddAgentAsync();
        program.CreateSecondAgent();
        // do not proceed until agent is created
        await program.AddSecondAgentAsync();
        program.ModifyAgent();
        // do not proceed until agent is updated
        await program.UpdateAgentAsync();
        // do not proceed until agents are fetched
        await program.FetchAgentsAsync();
    }

    private void ServiceSetup()
    {
        // set up infrastructure for Web API call
        _client = new HttpClient {BaseAddress = new Uri("http://localhost:6687/")};
        // add Accept Header to request Web API content negotiation to return resource in JSON format
        _client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    }

    private async Task CleanupAsync()
    {
        // call cleanup method in service
        _response = await _client.DeleteAsync("api/travelagent/cleanup/");
    }

    private void CreateFirstAgent()
    {
        // create new Travel Agent and booking
        _agent1 = new TravelAgent {Name = "John Tate"};
        _booking1 = new Booking
        {
            Customer = "Karen Stevens",
            Paid = false,
            BookingDate = DateTime.Parse("2/2/2010")
        };

        _booking2 = new Booking
        {
            Customer = "Dolly Parton",
            Paid = true,
            BookingDate = DateTime.Parse("3/10/2010")
        };
  
        _agent1.Bookings.Add(_booking1);
        _agent1.Bookings.Add(_booking2);
    }

    private async Task AddAgentAsync()
    {
        // call generic update method in Web API service to add agent and bookings
        _response = await _client.PostAsync("api/travelagent/update/",
            _agent1, new JsonMediaTypeFormatter());

        if (_response.IsSuccessStatusCode)
        {
            // capture newly created travel agent from service, which will include
            // database-generated Ids for each entity
            _agent1 = await _response.Content.ReadAsAsync<TravelAgent>();
            _booking1 = _agent1.Bookings.FirstOrDefault(x => x.Customer == "Karen Stevens");
            _booking2 = _agent1.Bookings.FirstOrDefault(x => x.Customer == "Dolly Parton");

            Console.WriteLine("Successfully created Travel Agent {0} and {1} Booking(s)",
            _agent1.Name, _agent1.Bookings.Count);
        }
        else
            Console.WriteLine("{0} ({1})", (int) _response.StatusCode, _response.ReasonPhrase);
    }

    private void CreateSecondAgent()
    {
        // add new agent and booking
        _agent2 = new TravelAgent {Name = "Perry Como"};
        _booking3 = new Booking {
            Customer = "Loretta Lynn",
            Paid = true,
            BookingDate = DateTime.Parse("3/15/2010")};
        _agent2.Bookings.Add(_booking3);
    }

    private async Task AddSecondAgentAsync()
    {
        // call generic update method in Web API service to add agent and booking
        _response = await _client.PostAsync("api/travelagent/update/", _agent2, new JsonMediaTypeFormatter());

        if (_response.IsSuccessStatusCode)
        {
            // capture newly created travel agent from service
            _agent2 = await _response.Content.ReadAsAsync<TravelAgent>();
            _booking3 = _agent2.Bookings.FirstOrDefault(x => x.Customer == "Loretta Lynn");
            Console.WriteLine("Successfully created Travel Agent {0} and {1} Booking(s)",
                _agent2.Name, _agent2.Bookings.Count);
        }
        else
            Console.WriteLine("{0} ({1})", (int) _response.StatusCode, _response.ReasonPhrase);
    }

    private void ModifyAgent()
    {
        // modify agent 2 by changing agent name and assigning booking 1 to him from agent 1
        _agent2.Name = "Perry Como, Jr.";
        _agent2.Bookings.Add(_booking1);
    }

    private async Task UpdateAgentAsync()
    {
        // call generic update method in Web API service to update agent 2
        _response = await _client.PostAsync("api/travelagent/update/", _agent2, new JsonMediaTypeFormatter());
        if (_response.IsSuccessStatusCode)
        {
            // capture newly created travel agent from service, which will include Ids
            _agent1 = _response.Content.ReadAsAsync<TravelAgent>().Result;
            Console.WriteLine("Successfully updated Travel Agent {0} and {1} Booking(s)", _agent1.Name, _agent1.Bookings.Count);
        }
        else
            Console.WriteLine("{0} ({1})", (int) _response.StatusCode, _response.ReasonPhrase);
    }

    private async Task FetchAgentsAsync()
    {
        // call Get method on service to fetch all Travel Agents and Bookings
        _response = _client.GetAsync("api/travelagent/retrieve").Result;
        if (_response.IsSuccessStatusCode)
        {
            // capture newly created travel agent from service, which will include Ids
            var agents = await _response.Content.ReadAsAsync<IEnumerable<TravelAgent>>();

            foreach (var agent in agents)
            {
                Console.WriteLine("Travel Agent {0} has {1} Booking(s)", agent.Name, agent.Bookings.Count());
            }
        }
        else
            Console.WriteLine("{0} ({1})", (int) _response.StatusCode, _response.ReasonPhrase);
    }
}