CODEWITHSUNDEEP
c#asp.net-mvcwcfrestasp.net-mvc-5
Alma
Alma

Reputation: 4420

How pass parameter to Rest WCF Service from MVC5 project

I have a WCF Rest Service(using Json) that gets the username and password and returns Customer information. This is the Method interface.

   //Get Customer by Name
    [OperationContract]
    [WebInvoke
       (UriTemplate = "/GetCustomerByName",
        Method = "POST", BodyStyle = WebMessageBodyStyle.Wrapped,
        ResponseFormat = WebMessageFormat.Json,
        RequestFormat = WebMessageFormat.Json
        )]
    List<Model.Customer> GetCustomerByName(Model.CustomerName CustomerData);

I need to call this method in MVC5 and pass parameter to it. Not sure how to pass parameter.

This is how I call the service:

readonly string customerServiceUri = "http://localhost:63674/CSA.svc/";
 public ActionResult SearchByName(InputData model)
    {
        List<CustomerModel> customerModel = new List<CustomerModel>();

        if (ModelState.IsValid)
        {
            if (model != null)
            {
                using (WebClient webclient = new WebClient())
                {
                    string jsonStr = webclient.DownloadString(string.Format("{0}GetCustomerByName?CustomerData={1}", customerServiceUri, model));

                    if (!string.IsNullOrWhiteSpace(jsonStr))
                    {
                        var result = JsonConvert.DeserializeObject<Models.CustomerModel.Result>(jsonStr);

                        if (result != null)
                        {
                            customerModel = result.GetCustomersByNameResult;
                        }
                    }
                }
            }
        }
        return View(customerModel);
    }

I am getting error right on this line:

 string jsonStr = webclient.DownloadString(string.Format("{0}GetCustomerByName?CustomerData={1}", customerServiceUri, model));

and this is the error:

The remote server returned an error: (405) Method Not Allowed.

and this is InputData class:

 public class InputData
  {

      public string First_Name { get; set; }
      public string Last_Name { get; set; }
  }

Upvotes: 2

Views: 1073

Answers (1)

adricadar
adricadar

Reputation: 10219

The problem is that the line of code is calling the service, wrong. Because you pass the values in url, the line of code is making an GET request, not a POST. If you are willing to make a POST request please follow this answer.

What is wrong with the code?

string jsonStr = webclient.DownloadString(string.Format("{0}GetCustomerByName?CustomerData={1}", customerServiceUri, model));

1) This error is thrown (405) Method Not Allowed because you expecting because a POST request is expected and is made a GET request.

2) This will output something like this: http://localhost:63674/CSA.svc/GetCustomerByName?CustomerData=[SolutionName].[ProjectName].InputData

This is happening because C# don't know how to convert InputData to string in the way you want, for this you have to override the method ToString().

Possible solution

Try to make a GET request, you have to call the service in this way (with few modifications)

string jsonStr = webclient.DownloadString(string.Format("{0}GetCustomerByName?firstName={1}&lastName={2}", customerServiceUri, model.First_Name, model.Last_Name));

You have to modify the service to match the example i made for the GET request.

//Get Customer by Name
[OperationContract]
[WebGet(UriTemplate = "GetCustomerByName?firstName={firstName}&lastName={lastName}")]
List<Model.Customer> GetCustomerByName(string firstName, string lastName);

Upvotes: 1

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