如何将URL与控制器动作匹配

Question

I'm having difficulty getting my my controller action, as this is currently matching the default route (I'm using a typical default route configuration)

routes.MapRoute(
    name: "default",
    template: "{controller=Home}/{action=Index}/{id?}");

Why doesn't my url get routed to this controller action?

My typescript

let headers = new Headers();
    headers.append('Content-Type', 'application/json');

    let update = new CollectionUpdate();
    update.collectionID = Number(this.collectionID);
    update.collectionName = "new name";

    let url = "/api/Collections/RenameCollection/";

    let json = JSON.stringify(update);
    debugger;
    return this.http
        .patch(url, json, { headers: headers })
        .map(res => res.json())
        .subscribe(
        result => {
            this.onRename(result as CollectionUpdate)
        });

My controller action

[HttpPatch]
    public Task<CollectionUpdate> RenameCollection([FromBody]CollectionUpdate update)
    {
        return Task.FromResult<CollectionUpdate>(new CollectionUpdate());
    }

Answer 1

Changing it to a put operation worked. I guess I'll just roll with that.

        [HttpPut("[action]")]
    public Task<CollectionUpdate> RenameCollection([FromBody]CollectionUpdate update)