CODEWITHSUNDEEP
c#asp.net-mvclinqasp.net-web-api
michasaucer
michasaucer

Reputation: 5228

ASP WebApi GET response with string id?

I have a question.

I have a table of users. ID of user is a string. I have GET that looks like that:

    // GET: api/WatchedProduct
    [HttpGet]
    public IEnumerable<WatchedProduct> GetWatchedProduct(string id)
    {
        var productsList = id == String.Empty ?
            db.WatchedProducts.Where(u => u.ApplicationUserId == id).ToList() :
            db.WatchedProducts.Where(u => u.ApplicationUserId == loggedUserId).ToList();

        return productsList;
    }

When i call API in Postman, i get this response:

{
"message": "No HTTP resource was found that matches the request URI 'http://.../api/WatchedProduct'.",
"messageDetail": "No action was found on the controller 'WatchedProduct' that matches the request."
}

My question is, how to make GetWatchedProduct method like when id is int (GetWatchedProduct(int? id)) ? Is it possible to do the same with a string? I need another Get Method?

EDIT:

When i call my API with string param:

http://localhost.../api/WatchedProduct/StringidHere

It works, I want to have one method for GET in my controller. When String.Empty and when i pass a string.

My RouteConfig.cs

public class RouteConfig
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapMvcAttributeRoutes();
        //AreaRegistration.RegisterAllAreas();

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
        );
    }
}

EDIT2

WebApiConfig.cs

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        /*var cors = new EnableCorsAttribute("http://localhost:4200", "*", "GET,POST,PUT,DELETE,OPTIONS");
        cors.SupportsCredentials = true;

        config.EnableCors(cors);*/

        // Web API configuration and services
        // Configure Web API to use only bearer token authentication.
        config.SuppressDefaultHostAuthentication();
        config.Filters.Add(new HostAuthenticationFilter(OAuthDefaults.AuthenticationType));

        // Web API routes
        config.MapHttpAttributeRoutes();

        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );
    }

EDIT3:

For example, that method from another controller works:

     // GET: api/Product/search?str=kaarol
    [Route("search")]
    public IEnumerable<Product> GetSearch(string str)
    {
        return db.Products.Where(p => p.Name.Contains(str)).ToList();
    }

But in my case, i want to have one method to call /Api/Watched... and with StringID when i want to.

Upvotes: 1

Views: 2803

Answers (2)

Gurpreet_Carmel_5
Gurpreet_Carmel_5

Reputation: 357

You can try something like this

public class WatchedProduct : ApiController
{
 // GET: api/WatchedProduct
 [HttpGet]
  [Route("WatchedProduct")]
   public IEnumerable<WatchedProduct> Get()
  {
   var context = Request.Properties["MS_HttpContext"] as HttpContext;
   var id = context.Request.QueryString["id"];
    var productsList = id == String.Empty ?
    db.WatchedProducts.Where(u => u.ApplicationUserId == id).ToList() :
    db.WatchedProducts.Where(u => u.ApplicationUserId == loggedUserId).ToList();

    return productsList;
  }
}

should work for both the cases as it satisfies both the routes.

Upvotes: 0

darcane
darcane

Reputation: 483

Normally your route works like GET /api/controllerName/ If you want to access it like GET /api/controllerName/customRoute you need to Route your method.

// GET: api/WatchedProduct
[HttpGet]
[Route("WatchedProduct")]
public IEnumerable<WatchedProduct> GetWatchedProduct(string id)
{
    var productsList = id == String.Empty ?
        db.WatchedProducts.Where(u => u.ApplicationUserId == id).ToList() :
        db.WatchedProducts.Where(u => u.ApplicationUserId == loggedUserId).ToList();

    return productsList;
}

More info Microsoft docs here

EDIT

If your controller name is WatchedProductController then you dont need to specify it explicitly. What i am saying is:

public class WatchedProduct : ApiController
{
    // GET: api/WatchedProduct
    [HttpGet]
    public IEnumerable<WatchedProduct> Get(string id)
    {
        var productsList = id == String.Empty ?
        db.WatchedProducts.Where(u => u.ApplicationUserId == id).ToList() :
        db.WatchedProducts.Where(u => u.ApplicationUserId == loggedUserId).ToList();

        return productsList;
    }
}

should works.

Upvotes: 4

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