WebAPI: How to do attribute routing for Post, Put and Delete verbs

Question

I am new in WebAPI. Somehow I manage to do attribute routing for get type request but do not know how to do it for Post, Put and Delete verbs

Please see my sample code and come with modified code where some one would show me how to do attribute routing for Post, Put and Delete verbs.

[RoutePrefix("api/customer")]
public class CustomerController : ApiController
{
    static readonly ICustomerRepository repository = new CustomerRepository();

    [HttpGet, Route("GetAll")]
    public IEnumerable<Customer> GetAllCustomers()
    {
        return repository.GetAll();
    }

    [HttpGet, Route("GetByID/{customerID}")]
    public Customer GetCustomer(string customerID)
    {
        Customer customer = repository.Get(customerID);
        if (customer == null)
        {
            throw new HttpResponseException(HttpStatusCode.NotFound);
        }
        return customer;
    }

    [HttpGet, Route("GetByCountryName/{country}")]
    public IEnumerable<Customer> GetCustomersByCountry(string country)
    {
        return repository.GetAll().Where(
            c => string.Equals(c.Country, country, StringComparison.OrdinalIgnoreCase));
    }

    public HttpResponseMessage PostCustomer(Customer customer)
    {
        customer = repository.Add(customer);
        var response = Request.CreateResponse<Customer>(HttpStatusCode.Created, customer);

        string uri = Url.Link("DefaultApi", new { customerID = customer.CustomerID });
        response.Headers.Location = new Uri(uri);
        return response;
    }

    public void PutProduct(string customerID, Customer customer)
    {
        customer.CustomerID = customerID;
        if (!repository.Update(customer))
        {
            throw new HttpResponseException(HttpStatusCode.NotFound);
        }
    }

    public void DeleteProduct(string customerID)
    {
        Customer customer = repository.Get(customerID);
        if (customer == null)
        {
            throw new HttpResponseException(HttpStatusCode.NotFound);
        }
        repository.Remove(customerID);
    }
}

Customer class

public class Customer
{
    public string CustomerID { get; set; }
    public string CompanyName { get; set; }
    public string ContactName { get; set; }
    public string ContactTitle { get; set; }

    public string Address { get; set; }

    public string Region { get; set; }

    public string PostalCode { get; set; }
    public string City { get; set; }
    public string Country { get; set; }
    public string Phone { get; set; }
    public string Fax { get; set; }
}

Answer 1

Not testet but I think it should look like this:

[RoutePrefix("api/customer")]
public class CustomerController : ApiController
{
    static readonly ICustomerRepository repository = new CustomerRepository();

    [HttpGet]
    [Route("")]
    public IEnumerable<Customer> GetAllCustomers()
    {
        return repository.GetAll();
    }

    [HttpGet]
    [Route("{customerID}")]
    public Customer GetCustomer(string customerID)
    {
        Customer customer = repository.Get(customerID);
        if (customer == null)
        {
            throw new HttpResponseException(HttpStatusCode.NotFound);
        }
        return customer;
    }

    [HttpGet]
    [Route("/GetByCountryName/{country}")]
    public IEnumerable<Customer> GetCustomersByCountry(string country)
    {
        return repository.GetAll().Where(
            c => string.Equals(c.Country, country, StringComparison.OrdinalIgnoreCase));
    }

    [HttpPost]
    [Route("")]
    public HttpResponseMessage PostCustomer([FromBody]Customer customer)
    {
        customer = repository.Add(customer);
        var response = Request.CreateResponse<Customer>(HttpStatusCode.Created, customer);

        string uri = Url.Link("DefaultApi", new { customerID = customer.CustomerID });
        response.Headers.Location = new Uri(uri);
        return response;
    }

    [HttpPut]
    [Route("{customerID}")]
    public void PutProduct(string customerID, [FromBody]Customer customer)
    {
        customer.CustomerID = customerID;
        if (!repository.Update(customer))
        {
            throw new HttpResponseException(HttpStatusCode.NotFound);
        }
    }

    [HttpDelete]
    [Route("{customerID}")]
    public void DeleteProduct(string customerID)
    {
        Customer customer = repository.Get(customerID);
        if (customer == null)
        {
            throw new HttpResponseException(HttpStatusCode.NotFound);
        }
        repository.Remove(customerID);
    }
}