ASP.NET ChangePassword userId = null

Question

So, I'm trying to change user password using default ASP.NET methond, but just don't work, somehow I'm not able to get the current user data. I tried different approaches to get userId and still nothing. And I didn't change a thing except for the [AllowAnonymous], because there was a error saying permission denied when I tried to call the method.

// POST api/Account/ChangePassword
    [AllowAnonymous]
    [Route("ChangePassword")]
    public async Task<IHttpActionResult> ChangePassword(ChangePasswordBindingModel model)
    {
        if (!ModelState.IsValid)
        {
            return BadRequest(ModelState);
        }

        IdentityResult result = await UserManager.ChangePasswordAsync(User.Identity.GetUserId(), model.OldPassword,
            model.NewPassword);

        if (!result.Succeeded)
        {
            return GetErrorResult(result);
        }

        return Ok();
    }

Answer 1

So, I found the answer... I forgot to put this on the request:

authorization: bearer my_token