Serializing an object with restsharp and passing it to WebApi not serializing list

Question

I have a a view model that looks like.

public class StoreItemViewModel
{
    public Guid ItemId { get; set; }
    public List StoreIds { get; set; }
         


        

Answer 1

I managed to get this working. I don't think its the correct way but it works.

 public static IRestResponse Create<T>(object objectToUpdate, string apiEndPoint) where T : new()
    {
        var client = new RestClient(CreateBaseUrl(null))
        {
            Authenticator = new HttpBasicAuthenticator("user", "Password1")
        };
        var json = JsonConvert.SerializeObject(objectToUpdate);
        var request = new RestRequest(apiEndPoint, Method.POST);
        request.AddParameter("text/json", json, ParameterType.RequestBody);
        var response = client.Execute<T>(request);
        return response;
    }

Answer 2

I struggled with the same problem and came up a working solution.

1. Be sure to set the request format to JSON:

   request.RequestFormat = DataFormat.Json;

2. Use AddBody, rather than AddObject:

   request.AddBody(zNewSessionUsage);

So your code would be something like this:

public static IRestResponse Create<T>(object objectToUpdate, string apiEndPoint) where T : new()
{
    var client = new RestClient(CreateBaseUrl(null))
    {
        Authenticator = new HttpBasicAuthenticator("user", "Password1")
    };

    var request = new RestRequest(apiEndPoint, Method.POST);
    request.RequestFormat = DataFormat.Json;
    request.AddBody(objectToUpdate);
    var response = client.Execute<T>(request);
    return response;
}

Answer 3

RestSharp now has a more streamlined way to add an object to the RestRequest Body with Json Serialization:

public static IRestResponse Create<T>(object objectToUpdate, string apiEndPoint) where T : new()
{
    var client = new RestClient(CreateBaseUrl(null))
    {
        Authenticator = new HttpBasicAuthenticator("user", "Password1")
    };
    var request = new RestRequest(apiEndPoint, Method.POST);
    request.AddJsonBody(objectToUpdate); // HERE
    var response = client.Execute<T>(request);
    return response;
}

This was found in RestSharp 105.0.1.0