Passing multiple Id parameter to Web Api GET or DELETE request

Question

I have a Bussiness Entity that is recognized by 2 Keys, for example:

class UserItem {
    [Key]
    [Column(Order = 1)]
    public string UserId {get;set;}
    [Key]
    [Column(Order = 2)]
    public string ItemName {get; set;}
    public int Count {get; set;}    
}

Now using ASP.NET Web Api, how can I make an HTTP GET or HTTP DELETE to accept multiple parameters? Currently, the default generated template only accept 1 key:

class ItemController : ApiController {
    .....

    //api/item/[key]
    [HttpGet]
    [ResponseType(typeof(UserItem))]
    public async Task<IHttpActionResult> GetUserItem(string id)
    {
        UserItem item = await db.useritems.FindAsync(id);
        ......
    }

    ......
}

db is my datacontext, i'm using EntityFramework 6 with ASP.NET Web Api 2

Answer 1

Map your route like below will allow you to pass two parameter, you can add more that two parameter this way

    [HttpGet]
    [Route("api/item/{id1}/{id2}")]
    [ResponseType(typeof(UserItem))]
    public async Task<IHttpActionResult> GetUserItem(string id1, string id2)
    {
       UserItem item = await db.useritems.FindAsync(id1);
       ......
    }