Creating Modern WebAPIs with ASP.NET Core

In distributed applications, the backend plays a decisive role, and the development of the backend has become a separate area. It should be quick and easy to use, provide the data for the frontend and be well documented. In this talk by Fabian Gosebrink you will not only hear how to create a RESTful Web API with ASP.NET Core. You'll also learn how to document it with tools and how to extend it with useful features. The end result is a clean backend that can be used from any client.

Transcript

1. Creating Modern
   Creating Modern
   WebAPIs With
   WebAPIs With
   ASP.NET Core 3
   ASP.NET Core 3
   

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2. Web
   

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3. Web
   Desktop
   

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4. Mobile
   Desktop
   Web
   

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5. Mobile
   Desktop
   Web
   ...
   

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7. WebAPI
   Mobile
   Desktop
   Web
   ...
   

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8. Tooling
   

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9. Tooling
   DOTNET
   CLI
   

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10. .NET CLI
    dotnet new ...
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    dotnet new webapi
    3
    

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11. .NET CLI
    dotnet new ...
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    2
    dotnet new webapi
    3 dotnet new webapi
    dotnet new ...
    1
    2
    3
    

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15. public class Program
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    public static void Main(string[] args)
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    CreateHostBuilder(args).Build().Run();
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    public static IHostBuilder CreateHostBuilder(string[] args
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    Host.CreateDefaultBuilder(args)
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    .ConfigureWebHostDefaults(webBuilder =>
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    webBuilder.UseStartup();
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16. public class Program
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    CreateHostBuilder(args).Build().Run();
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    public static IHostBuilder CreateHostBuilder(string[] args
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    Host.CreateDefaultBuilder(args)
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    .ConfigureWebHostDefaults(webBuilder =>
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17. public class Program
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    CreateHostBuilder(args).Build().Run();
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    .ConfigureWebHostDefaults(webBuilder =>
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    {
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    webBuilder.UseStartup();
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    public static void Main(string[] args)
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    CreateHostBuilder(args).Build().Run();
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    webBuilder.UseStartup();
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    public static IHostBuilder CreateHostBuilder(string[] args
    Host.CreateDefaultBuilder(args)
    .ConfigureWebHostDefaults(webBuilder =>
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    webBuilder.UseStartup();
    });
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18. public class Program
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    CreateHostBuilder(args).Build().Run();
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    .ConfigureWebHostDefaults(webBuilder =>
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    webBuilder.UseStartup();
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    public static void Main(string[] args)
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    CreateHostBuilder(args).Build().Run();
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    public static IHostBuilder CreateHostBuilder(string[] args
    Host.CreateDefaultBuilder(args)
    .ConfigureWebHostDefaults(webBuilder =>
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    webBuilder.UseStartup();
    });
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    .ConfigureWebHostDefaults(webBuilder =>
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19. public class Program
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    CreateHostBuilder(args).Build().Run();
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    public static IHostBuilder CreateHostBuilder(string[] args
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    Host.CreateDefaultBuilder(args)
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    .ConfigureWebHostDefaults(webBuilder =>
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    {
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    webBuilder.UseStartup();
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    });
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    public static void Main(string[] args)
    {
    CreateHostBuilder(args).Build().Run();
    }
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    {
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    webBuilder.UseStartup();
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    public static IHostBuilder CreateHostBuilder(string[] args
    Host.CreateDefaultBuilder(args)
    .ConfigureWebHostDefaults(webBuilder =>
    {
    webBuilder.UseStartup();
    });
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    public static void Main(string[] args)
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    .ConfigureWebHostDefaults(webBuilder =>
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    CreateHostBuilder(args).Build().Run();
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    webBuilder.UseStartup();
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    CreateHostBuilder(args).Build().Run();
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20. public Startup(IConfiguration configuration)
    {
    Configuration = configuration;
    }
    public IConfiguration Configuration { get; }
    public class Startup
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    public void ConfigureServices(IServiceCollection services)
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    services.AddControllers();
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    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
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    {
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    if (env.IsDevelopment())
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    {
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    app.UseDeveloperExceptionPage();
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    }
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    app.UseHttpsRedirection();
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    app.UseRouting();
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    app.UseAuthorization();
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    app.UseEndpoints(endpoints =>
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    {
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    endpoints.MapControllers();
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    });
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    }
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    }
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21. public Startup(IConfiguration configuration)
    {
    Configuration = configuration;
    }
    public IConfiguration Configuration { get; }
    public class Startup
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    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
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    {
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    if (env.IsDevelopment())
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    {
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    app.UseDeveloperExceptionPage();
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    }
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    app.UseHttpsRedirection();
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    app.UseRouting();
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    app.UseAuthorization();
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    app.UseEndpoints(endpoints =>
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    {
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    endpoints.MapControllers();
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    });
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    }
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    }
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    public void ConfigureServices(IServiceCollection services)
    {
    services.AddControllers();
    }
    public class Startup
    1
    {
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    public Startup(IConfiguration configuration)
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    {
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    Configuration = configuration;
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    }
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    public IConfiguration Configuration { get; }
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    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
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    {
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    if (env.IsDevelopment())
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    {
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    app.UseDeveloperExceptionPage();
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    }
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    app.UseHttpsRedirection();
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    app.UseRouting();
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    app.UseAuthorization();
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    app.UseEndpoints(endpoints =>
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    {
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    endpoints.MapControllers();
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    });
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    }
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    }
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22. public Startup(IConfiguration configuration)
    {
    Configuration = configuration;
    }
    public IConfiguration Configuration { get; }
    public class Startup
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    public void ConfigureServices(IServiceCollection services)
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    services.AddControllers();
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    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
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    {
    16
    if (env.IsDevelopment())
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    {
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    app.UseDeveloperExceptionPage();
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    }
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    app.UseHttpsRedirection();
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    app.UseRouting();
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    app.UseAuthorization();
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    app.UseEndpoints(endpoints =>
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    {
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    endpoints.MapControllers();
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    });
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    }
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    }
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    public void ConfigureServices(IServiceCollection services)
    {
    services.AddControllers();
    }
    public class Startup
    1
    {
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    public Startup(IConfiguration configuration)
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    {
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    Configuration = configuration;
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    }
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    public IConfiguration Configuration { get; }
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    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
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    if (env.IsDevelopment())
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    app.UseDeveloperExceptionPage();
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    app.UseHttpsRedirection();
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    app.UseRouting();
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    app.UseAuthorization();
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    app.UseEndpoints(endpoints =>
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    {
    29
    endpoints.MapControllers();
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    });
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    }
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    }
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    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
    if (env.IsDevelopment())
    {
    app.UseDeveloperExceptionPage();
    }
    app.UseHttpsRedirection();
    app.UseRouting();
    app.UseAuthorization();
    app.UseEndpoints(endpoints =>
    {
    endpoints.MapControllers();
    });
    }
    public class Startup
    1
    {
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    public Startup(IConfiguration configuration)
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    {
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    Configuration = configuration;
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    public IConfiguration Configuration { get; }
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    public void ConfigureServices(IServiceCollection services)
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    services.AddControllers();
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    }
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    }
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23. JSON
    Serialization
    

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24. JSON Serialization
    

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25. JSON Serialization
    Newtonsoft.Jso
    n
    

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26. JSON Serialization
    Newtonsoft.Jso
    n
    System.Text.Js
    on
    

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27. JSON Serialization
    > Install­Package
    Microsoft.AspNetCore.Mvc.NewtonsoftJs
    on
    

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28. JSON Serialization
    > Install­Package
    Microsoft.AspNetCore.Mvc.NewtonsoftJs
    on
    

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29. JSON Serialization
    

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30. Service Registration
    

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31. Service Registration
    

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32. Service Registration
    services.AddControllers();
    services.AddControllersWithViews()
    ;
    services.AddRazorPages();
    

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33. Service Registration
    Method Controllers Views Pages
    AddControllers(); Y N N
    AddControllersWithViews(); Y Y N
    AddRazorPages(); N N Y
    

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34. Routing
    

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35. Startup
    

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36. REST
    

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37. REST
    What is
    ?
    

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38. REST
    is not
    WebAPI
    

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39. REST
    is not
    HTTP
    

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40. Architectural
    Style
    

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41. GET /api/houses/
    GET /api/houses/1
    POST /api/houses/
    PUT /api/houses/1
    DELETE /api/houses/1
    

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42. REST
    Constraints
    

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43. REST Constraints
    

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44. REST Constraints
    Client / Server
    Cacheable
    Stateless
    Layered System
    Uniform Interface
    Code on Demand
    

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45. Richardson
    Maturity
    Model
    

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46. https://martinfowler.com/articles/richardsonMaturityModel.html
    

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47. HATEOAS
    

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48. Hypermedia
    As
    The
    Engine
    Of
    Application
    State
    

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49. {
    "id": 1,
    "name": "Lasagne",
    "type": "Starter",
    "calories": 1000,
    "created": "2020-02-23T15:42:45.4923318+01:0
    }
    1
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    GET api/v1/foods/1
    

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50. {
    "id": 1,
    "name": "Lasagne",
    "type": "Starter",
    "calories": 1000,
    "created": "2020-02-23T15:42:45.4923318+01:00",
    "links": [
    {
    "href": "https://localhost:5001/api/v1/foods/1",
    "rel": "self",
    "method": "GET"
    },
    {
    "href": "https://localhost:5001/api/v1/foods/1",
    "rel": "delete_food",
    "method": "DELETE"
    },
    {
    "href": "https://localhost:5001/api/v1/foods",
    "rel": "create_food",
    "method": "POST"
    },
    {
    "href": "https://localhost:5001/api/v1/foods/1",
    "rel": "update_food",
    "method": "PUT"
    }
    ]
    }
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    GET api/v1/foods/1
    

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51. Statuscodes
    

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53. 2xx
    

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54. 4xx
    

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56. let ok = status >= 200 && status < 30
    1
    https://github.com/angular/angular/blob/master/packages/common/http/src/xhr.ts#L180
    

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57. The
    Controller
    

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58. [HttpGet(Name = nameof(GetAllFoods))]
    public ActionResult GetAllFoods()
    {
    List foodItems = _foodRepository.GetAll().ToLi
    return Ok(_mapper.Map(foodItems));
    }
    1
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59. [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
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    FoodEntity foodItem = _foodRepository.GetSingle(id);
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    if (foodItem == null)
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    {
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    return NotFound();
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    }
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    return Ok(_mapper.Map(foodItem));
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    }
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60. [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
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    if (foodItem == null)
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    {
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    return NotFound();
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    }
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    return Ok(_mapper.Map(foodItem));
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    }
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    [Route("{id:int}", Name = nameof(GetSingleFood))]
    [HttpGet]
    1
    2
    public ActionResult GetSingleFood(int id)
    3
    {
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    FoodEntity foodItem = _foodRepository.GetSingle(id);
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    if (foodItem == null)
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    {
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    return NotFound();
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    }
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    return Ok(_mapper.Map(foodItem));
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    }
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61. [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
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    if (foodItem == null)
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    {
    8
    return NotFound();
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    }
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    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    [HttpGet]
    1
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
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    if (foodItem == null)
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    {
    8
    return NotFound();
    9
    }
    10
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    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    public ActionResult GetSingleFood(int id)
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
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    if (foodItem == null)
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    {
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    return NotFound();
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    }
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    return Ok(_mapper.Map(foodItem));
    12
    }
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62. [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
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    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    [HttpGet]
    1
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
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    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
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    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    public ActionResult GetSingleFood(int id)
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    

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63. [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    [HttpGet]
    1
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    public ActionResult GetSingleFood(int id)
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    if (foodItem == null)
    {
    return NotFound();
    }
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    7
    8
    9
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    

    View Slide

64. [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    [HttpGet]
    1
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    public ActionResult GetSingleFood(int id)
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    if (foodItem == null)
    {
    return NotFound();
    }
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    7
    8
    9
    10
    11
    return Ok(_mapper.Map(foodItem));
    12
    }
    13
    return Ok(_mapper.Map(foodItem));
    [HttpGet]
    1
    [Route("{id:int}", Name = nameof(GetSingleFood))]
    2
    public ActionResult GetSingleFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    12
    }
    13
    

    View Slide

65. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    

    View Slide

66. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    [HttpPost(Name = nameof(AddFood))]
    1
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    

    View Slide

67. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    [HttpPost(Name = nameof(AddFood))]
    1
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (foodCreateDto == null)
    {
    return BadRequest();
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    4
    5
    6
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    

    View Slide

68. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    [HttpPost(Name = nameof(AddFood))]
    1
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (foodCreateDto == null)
    {
    return BadRequest();
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    4
    5
    6
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    

    View Slide

69. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    [HttpPost(Name = nameof(AddFood))]
    1
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (foodCreateDto == null)
    {
    return BadRequest();
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    4
    5
    6
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    _foodRepository.Add(toAdd);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    

    View Slide

70. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    [HttpPost(Name = nameof(AddFood))]
    1
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (foodCreateDto == null)
    {
    return BadRequest();
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    4
    5
    6
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    _foodRepository.Add(toAdd);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (!_foodRepository.Save())
    {
    throw new Exception("Creating a fooditem failed on save.");
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    13
    14
    15
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    

    View Slide

71. [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    [HttpPost(Name = nameof(AddFood))]
    1
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (foodCreateDto == null)
    {
    return BadRequest();
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    4
    5
    6
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    _foodRepository.Add(toAdd);
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    if (!_foodRepository.Save())
    {
    throw new Exception("Creating a fooditem failed on save.");
    }
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    13
    14
    15
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    20
    _mapper.Map(newFoodItem));
    21
    }
    22
    return CreatedAtRoute(nameof(GetSingleFood), new { id = newFoodItem.Id },
    _mapper.Map(newFoodItem));
    [HttpPost(Name = nameof(AddFood))]
    1
    public ActionResult AddFood([FromBody] FoodCreateDto foodCreateDto)
    2
    {
    3
    if (foodCreateDto == null)
    4
    {
    5
    return BadRequest();
    6
    }
    7
    8
    FoodEntity toAdd = _mapper.Map(foodCreateDto);
    9
    10
    _foodRepository.Add(toAdd);
    11
    12
    if (!_foodRepository.Save())
    13
    {
    14
    throw new Exception("Creating a fooditem failed on save.");
    15
    }
    16
    17
    FoodEntity newFoodItem = _foodRepository.GetSingle(toAdd.Id);
    18
    19
    20
    21
    }
    22
    

    View Slide

72. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

73. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

74. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

75. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (foodUpdateDto == null)
    {
    return BadRequest();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    5
    6
    7
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

76. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (foodUpdateDto == null)
    {
    return BadRequest();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    5
    6
    7
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    var existingFoodItem = _foodRepository.GetSingle(id);
    if (existingFoodItem == null)
    {
    return NotFound();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    10
    11
    12
    13
    14
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

77. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (foodUpdateDto == null)
    {
    return BadRequest();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    5
    6
    7
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    var existingFoodItem = _foodRepository.GetSingle(id);
    if (existingFoodItem == null)
    {
    return NotFound();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    10
    11
    12
    13
    14
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    _mapper.Map(foodUpdateDto, existingFoodItem);
    _foodRepository.Update(id, existingFoodItem);
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    17
    18
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

78. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (foodUpdateDto == null)
    {
    return BadRequest();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    5
    6
    7
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    var existingFoodItem = _foodRepository.GetSingle(id);
    if (existingFoodItem == null)
    {
    return NotFound();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    10
    11
    12
    13
    14
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    _mapper.Map(foodUpdateDto, existingFoodItem);
    _foodRepository.Update(id, existingFoodItem);
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    17
    18
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (!_foodRepository.Save())
    {
    throw new Exception("Updating a fooditem failed on save.");
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    21
    22
    23
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    

    View Slide

79. [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    [Route("{id:int}", Name = nameof(UpdateFood))]
    [HttpPut]
    1
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (foodUpdateDto == null)
    {
    return BadRequest();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    5
    6
    7
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    var existingFoodItem = _foodRepository.GetSingle(id);
    if (existingFoodItem == null)
    {
    return NotFound();
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    10
    11
    12
    13
    14
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    _mapper.Map(foodUpdateDto, existingFoodItem);
    _foodRepository.Update(id, existingFoodItem);
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    17
    18
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    if (!_foodRepository.Save())
    {
    throw new Exception("Updating a fooditem failed on save.");
    }
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    21
    22
    23
    24
    25
    return Ok(_mapper.Map(existingFoodItem));
    26
    }
    27
    return Ok(_mapper.Map(existingFoodItem));
    [HttpPut]
    1
    [Route("{id:int}", Name = nameof(UpdateFood))]
    2
    public ActionResult UpdateFood(int id, [FromBody]FoodUpdateDto foodUpda
    3
    {
    4
    if (foodUpdateDto == null)
    5
    {
    6
    return BadRequest();
    7
    }
    8
    9
    var existingFoodItem = _foodRepository.GetSingle(id);
    10
    11
    if (existingFoodItem == null)
    12
    {
    13
    return NotFound();
    14
    }
    15
    16
    _mapper.Map(foodUpdateDto, existingFoodItem);
    17
    18
    _foodRepository.Update(id, existingFoodItem);
    19
    20
    if (!_foodRepository.Save())
    21
    {
    22
    throw new Exception("Updating a fooditem failed on save.");
    23
    }
    24
    25
    26
    }
    27
    

    View Slide

80. [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    

    View Slide

81. [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    [Route("{id:int}", Name = nameof(RemoveFood))]
    [HttpDelete]
    1
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    

    View Slide

82. [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    [Route("{id:int}", Name = nameof(RemoveFood))]
    [HttpDelete]
    1
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    public ActionResult RemoveFood(int id)
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    

    View Slide

83. [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    [Route("{id:int}", Name = nameof(RemoveFood))]
    [HttpDelete]
    1
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    public ActionResult RemoveFood(int id)
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    if (foodItem == null)
    {
    return NotFound();
    }
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    5
    6
    7
    8
    9
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    

    View Slide

84. [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    [Route("{id:int}", Name = nameof(RemoveFood))]
    [HttpDelete]
    1
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    public ActionResult RemoveFood(int id)
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    if (foodItem == null)
    {
    return NotFound();
    }
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    5
    6
    7
    8
    9
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    _foodRepository.Delete(id);
    if (!_foodRepository.Save())
    {
    throw new Exception("Deleting a fooditem failed on save
    }
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    12
    13
    14
    15
    16
    17
    18
    return NoContent();
    19
    }
    20
    

    View Slide

85. [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    [Route("{id:int}", Name = nameof(RemoveFood))]
    [HttpDelete]
    1
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    public ActionResult RemoveFood(int id)
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    if (foodItem == null)
    {
    return NotFound();
    }
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    5
    6
    7
    8
    9
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    return NoContent();
    19
    }
    20
    _foodRepository.Delete(id);
    if (!_foodRepository.Save())
    {
    throw new Exception("Deleting a fooditem failed on save
    }
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    12
    13
    14
    15
    16
    17
    18
    return NoContent();
    19
    }
    20
    return NoContent();
    [HttpDelete]
    1
    [Route("{id:int}", Name = nameof(RemoveFood))]
    2
    public ActionResult RemoveFood(int id)
    3
    {
    4
    FoodEntity foodItem = _foodRepository.GetSingle(id);
    5
    6
    if (foodItem == null)
    7
    {
    8
    return NotFound();
    9
    }
    10
    11
    _foodRepository.Delete(id);
    12
    13
    if (!_foodRepository.Save())
    14
    {
    15
    throw new Exception("Deleting a fooditem failed on save
    16
    }
    17
    18
    19
    }
    20
    

    View Slide

86. Use
    DTOs
    

    View Slide

87. Before going
    to the
    Demo
    ...
    

    View Slide

88. Paging
    /api/foods?page=2&count=5
    

    View Slide

89. Sorting
    /api/foods?orderby=id
    

    View Slide

90. Datashaping
    /api/foods?fields=calories,nam
    

    View Slide

91. Versioning
    is hard!
    

    View Slide

92. Versioning
    document.docx
    

    View Slide

93. Versioning
    document-final.docx
    

    View Slide

94. Versioning
    document-final-final.docx
    

    View Slide

95. Versioning
    document-really-final.docx
    

    View Slide

96. Versioning
    document-really-final-end-
    of-discussion.docx
    

    View Slide

97. Versioning
    document-really-final-approved-by-
    customer.docx
    

    View Slide

98. Versioning
    document-really-final-approved-by-
    customer-with-alterations-
    suggested-by-his-assistant.docx
    

    View Slide

99. Versioning
    document-really-final-approved-by-
    customer-with-alterations-suggested-
    by-his-assistant-and-the-janitor-
    cause-apparently-the-janitor-thinks-
    he-knows-all-about-good-api-design
    

    View Slide

100. Versioning
     document-really-final-approved-by-
     customer-with-alterations-suggested-
     by-his-assistant-and-the-janitor-cause-
     apparently-the-janitor-thinks-he-
     knows-all-about-good-api-design.docx
     

     View Slide

101. View Slide

102. Versioning
     /api/v1/foods/
     

     View Slide

103. Versioning
     /api/v1/foods/
     api-version: 1.0
     

     View Slide

104. Versioning
     /api/v1/foods/
     api-version: 1.0
     api/foods?version=1.
     

     View Slide

105. Documentation
     

     View Slide

106. Documentation
     Swagger
     

     View Slide

107. View Slide

108. Demo
     

     View Slide

109. SignalR
     

     View Slide

110. public class Startup
     {
     public Startup(IConfiguration configuration)
     {
     Configuration = configuration;
     }
     public IConfiguration Configuration { get; }
     public void ConfigureServices(IServiceCollection services)
     {
     // ...
     services.AddSignalR();
     }
     public void Configure(IApplicationBuilder app, IWebHostEnvironment env
     {
     // ...
     app.UseEndpoints(endpoints =>
     {
     // ...
     endpoints.MapHub("/coolHub");
     });
     }
     }
     1
     2
     3
     4
     5
     6
     7
     8
     9
     10
     11
     12
     13
     14
     15
     16
     17
     18
     19
     20
     21
     22
     23
     24
     25
     26
     

     View Slide

111. Takeaways
     Takeaways
     

     View Slide

112. Takeaways
     Takeaways
     Use DTOs
     

     View Slide

113. Takeaways
     Takeaways
     Use DTOs
     Abstract HTTP Layer
     

     View Slide

114. Takeaways
     Takeaways
     Use DTOs
     Abstract HTTP Layer
     Correct Statuscodes
     

     View Slide

115. Takeaways
     Takeaways
     Use DTOs
     Abstract HTTP Layer
     Correct Statuscodes
     REST Constraints
     

     View Slide

116. View Slide

117. T h e E n d
     

     View Slide

118. Links
     Links
     https://aip.dev/
     https://martinfowler.com/articles/richardsonMaturityModel.html
     https://www.youtube.com/watch?v=nSKp2StlS6s
     https://github.com/FabianGosebrink/ASPNETCore-WebAPI-Sample
     

     View Slide