Error handling (Sending ex.Message to the client)

Question

I have an ASP.NET Core 1.0 Web API application and trying to figure out how to pass the exception message to the client if a function that my controller is calling errors ou

Answer 1

Rather than raising and catching an exception, how about you simplify your action to:

// GET: api/customers/{id}
[HttpGet("{id}", Name = "GetCustomer")]
public IActionResult GetById(int id)
{
    var customer = _customersService.GetCustomerById(id);

    if (customer == null)
    {
        return NotFound("Customer doesn't exist");        
    }

    return Ok(customer);
}

I wrote a blog post with some more options such as returning a JSON object instead of text.