How to pass several objects to web api method?

Question

Hi,

I've got controller that inherits from ApiController. It has following method:

[HttpPost]

public Product Add(Product prod)
{
 try
 {
   if (prod == null)
   {
      throw new ArgumentNullException("Product");
   }
   db.Products.AddObject(prod);
   db.SaveChanges();

   int id = prod.ID;
   Product p = db.Products.Where(x => x.ID == id).First();
   return p;

 }
 catch (Exception e)
 {
   return null;
 }
}

To invoke this method I use client method shown below:

public Product Add(Product prod)
{
  ApiServiceUrl = "http://localhost:55933/Api/Product";
  using (WebClient client = new WebClient())
    {
       client.Headers[HttpRequestHeader.ContentType] = "application/json";
       var jsonObj = JsonConvert.SerializeObject(prod);
       var dataString = client.UploadString(ApiServiceUrl, jsonObj);
       var data = JsonConvert.DeserializeObject<Product>(dataString);
       return data;
    }
}

and it works fine.

I'm wondering if it's possible to invoke Web Api method that has several parameters(eg. Product prod, SomeObject info, String desc). How should look client method to achieve that?

Regards,

borowa

Answer 1

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Answer 2

<dir>

Front end code

Just put the parameter in your backend.

$.ajax({
    url: '/Inventory/TransferParts',
    data: $.param({ id: id, name:name }),
    type: 'POST',
    success: function () {
     self.model.fetch();
     $.growlUI('System Notification', 'Your changes have been saved!');
    },
    error: function (xhr) {
     showError(xhr.responseText);
    }
   });</dir>

---

chanmm

Answer 3

Small tweak using your code:

public Product Add(List<Product> prodlist)
{
  ApiServiceUrl = "http://localhost:55933/Api/Product";
  using (WebClient client = new WebClient())
    {
       client.Headers[HttpRequestHeader.ContentType] = "application/json";
       var jsonObj = JsonConvert.SerializeObject(new {prods = prodlist.ToArray()});
       var dataString = client.UploadString(ApiServiceUrl, jsonObj);
       var data = JsonConvert.DeserializeObject<Product>(dataString);
       return data;
    }
}

Now modify you web method to:

public Product Add(List<Product> prods)
{
   //You should be able to change accordingly
}