How to read error message by httpclient class throwing from web api

Question

_{Friday, August 26, 2016 2:20 PM}

below is a sample action which is returning HttpResponseMessage and if any error occur then this way web api action returning error message and status code to client side return Request.CreateErrorResponse(HttpStatusCode.NotFound, message);.

[HttpGet, Route("GetAll")]
public HttpResponseMessage GetAllCustomers()
{
    IEnumerable<Customer> customers = repository.GetAll();
    if (customers == null)
    {
        var message = string.Format("No customers found");
        return Request.CreateErrorResponse(HttpStatusCode.NotFound, message);
    }
    else
    {
        return Request.CreateResponse(HttpStatusCode.OK, customers);
    }
}

when i am invoking action by http client then i am not getting message in ReasonPhrase property. just tell me what is the right way to read message at client side which is passing like this way return Request.CreateResponse(HttpStatusCode.OK, customers);

here is my client side code

private async void btnFind_Click(object sender, EventArgs e)
{
    var fullAddress = baseAddress + "api/customer/GetByID/"+txtFind.Text;
    Customer _Customer = null;

    using (var client = new HttpClient())
    {
        using (var response = client.GetAsync(fullAddress).Result)
        {
            if (response.IsSuccessStatusCode)
            {
                var customerJsonString = await response.Content.ReadAsStringAsync();
                _Customer = JsonConvert.DeserializeObject<Customer>(customerJsonString);
            }
            else
            {
                Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
            }
        }
    }

    if (_Customer != null)
    {
        var _CustList = new List<Customer> { _Customer };
        dgCustomers.DataSource = _CustList;
    }

}

response.ReasonPhrase not holding the message which i am passing from action. so may be i am not doing things to read message. please tell me what to change in my code to read the message. thanks

All replies (1)

_{Friday, August 26, 2016 3:00 PM ✅Answered}

It looks like you're passing the message as part of the body so you would use the Content property just like you are doing for the success case. It may be a JSON object however (you can do this query directly in the browser to get what is returned).

Michael Taylor
http://www.michaeltaylorp3.net