public async Task<HttpResponseMessage> CreateAsync(Product model)
{
_entityContext.Products.Add(model);
await _entityContext.SaveChangesAsync();
var response = Request.CreateResponse(HttpStatusCode.Created);
var uri = Url.Link(RetrieveProductRoute, new {id = model.Id});
response.Headers.Location = new Uri(uri);
return response;
}
/// <summary>
/// Idempotent product creation
/// </summary>
/// <param name="context">The entity context</param>
/// <param name="name">The product name</param>
/// <param name="description">The product description</param>
/// <param name="quantityAvailable">The product quantity available</param>
public static Product TryAddProduct(this EntityContext context, string name, string description, int quantityAvailable)
{
Condition.Requires(context, "context").IsNotNull();
var product = context.Products.FirstOrDefault(o => o.Name == name);
if (null == product)
{
product = new Product(name) {Description = description, QuantityAvailable = quantityAvailable};
context.Products.Add(product);
}
return product;
}