web api 2 versioning with name space
참고 - http://aspnet.codeplex.com/SourceControl/changeset/view/dd207952fa86#Samples/WebApi/NamespaceControllerSelector/ReadMe.txt
- class를 NamespaceHttpControllerSelector 추가하자. ```cs using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http; using System.Web.Http.Controllers; using System.Web.Http.Dispatcher; using System.Web.Http.Routing;
namespace s3.api.App_Start { public class NamespaceHttpControllerSelector : IHttpControllerSelector { private const string NamespaceKey = “namespace”; private const string ControllerKey = “controller”;
private readonly HttpConfiguration _configuration;
private readonly Lazy<Dictionary<string, HttpControllerDescriptor>> _controllers;
private readonly HashSet<string> _duplicates;
public NamespaceHttpControllerSelector(HttpConfiguration config)
{
_configuration = config;
_duplicates = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
_controllers = new Lazy<Dictionary<string, HttpControllerDescriptor>>(InitializeControllerDictionary);
}
private Dictionary<string, HttpControllerDescriptor> InitializeControllerDictionary()
{
var dictionary = new Dictionary<string, HttpControllerDescriptor>(StringComparer.OrdinalIgnoreCase);
// Create a lookup table where key is "namespace.controller". The value of "namespace" is the last
// segment of the full namespace. For example:
// MyApplication.Controllers.V1.ProductsController => "V1.Products"
IAssembliesResolver assembliesResolver = _configuration.Services.GetAssembliesResolver();
IHttpControllerTypeResolver controllersResolver = _configuration.Services.GetHttpControllerTypeResolver();
ICollection<Type> controllerTypes = controllersResolver.GetControllerTypes(assembliesResolver);
foreach (Type t in controllerTypes)
{
var segments = t.Namespace.Split(Type.Delimiter);
// For the dictionary key, strip "Controller" from the end of the type name.
// This matches the behavior of DefaultHttpControllerSelector.
var controllerName = t.Name.Remove(t.Name.Length - DefaultHttpControllerSelector.ControllerSuffix.Length);
var key = String.Format(CultureInfo.InvariantCulture, "{0}.{1}", segments[segments.Length - 1], controllerName);
// Check for duplicate keys.
if (dictionary.Keys.Contains(key))
{
_duplicates.Add(key);
}
else
{
dictionary[key] = new HttpControllerDescriptor(_configuration, t.Name, t);
}
}
// Remove any duplicates from the dictionary, because these create ambiguous matches.
// For example, "Foo.V1.ProductsController" and "Bar.V1.ProductsController" both map to "v1.products".
foreach (string s in _duplicates)
{
dictionary.Remove(s);
}
return dictionary;
}
// Get a value from the route data, if present.
private static T GetRouteVariable<T>(IHttpRouteData routeData, string name)
{
object result = null;
if (routeData.Values.TryGetValue(name, out result))
{
return (T)result;
}
return default(T);
}
public HttpControllerDescriptor SelectController(HttpRequestMessage request)
{
IHttpRouteData routeData = request.GetRouteData();
if (routeData == null)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
// Get the namespace and controller variables from the route data.
string namespaceName = GetRouteVariable<string>(routeData, NamespaceKey);
if (namespaceName == null)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
string controllerName = GetRouteVariable<string>(routeData, ControllerKey);
if (controllerName == null)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
// Find a matching controller.
string key = String.Format(CultureInfo.InvariantCulture, "{0}.{1}", namespaceName, controllerName);
HttpControllerDescriptor controllerDescriptor;
if (_controllers.Value.TryGetValue(key, out controllerDescriptor))
{
return controllerDescriptor;
}
else if (_duplicates.Contains(key))
{
throw new HttpResponseException(
request.CreateErrorResponse(HttpStatusCode.InternalServerError,
"Multiple controllers were found that match this request."));
}
else
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
}
public IDictionary<string, HttpControllerDescriptor> GetControllerMapping()
{
return _controllers.Value;
}
}
2. 기존 라우터에 namespace를 추가하자. - WebApiConfig.cs
```cs
// Register default route
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{namespace}/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
- 서비스에 등록하자. - WebApiConfig.cs ```cs
config.Services.Replace(typeof(IHttpControllerSelector), new NamespaceHttpControllerSelector(config));
4. 이제 api를 두개 만들자. - Controllers/v1/
```cs
namespace MyApp.Controllers.V1
{
// Version 1 controller
public class ValuesController : ApiController { }
}
namespace MyApp.Controllers.V2
{
// Version 2 controller
public class ValuesController : ApiController { }
}
- 테스트해보자.
- http://localhost:59486/v1/values
- http://localhost:59486/v2/values
동작한다.
- 해결하지 못한 문제..
- swagger에서 이상하게 나온다.
- api 주소를 잘못치면 자꾸 비쥬얼 스튜디오가 멈춘다.