Question

I have read about the memory usage of a wcf client and what i have done until now is might be wrong.
When i have used a wcf client, i created a new wcf client for each call. (for self hosting and for iis).
is it the way to go ? of i should create one client as a member and use it all around ?
what is the truly memory usage of a wcf client ?
Thanks

Answer 1

I would think that you should only create a new client when you need to call service operations from a new endpoint, but your binding typically stays the same. So you can a create a factory class to make clients for a specific contract + binding but different endpoints. For example, the following would be for WebHttpBinding but you can substitute whatever binding you need:

public class WebHttpClient<T> 
{
    protected WebHttpBinding Binding { get; private set; }

    public WebHttpClient()
    {
        // set default binding here
    }

    public WebHttpClient(WebHttpBinding binding)
    {
        Binding = binding; 
    }

    public T Get(string uri)
    {
        EndpointAddress _endpoint = new EndpointAddress(uri);
        ChannelFactory<T> _factory = new ChannelFactory<T>(Binding, _endpoint);

        _factory.Endpoint.Behaviors.Add(new WebHttpBehavior());
        return _factory.CreateChannel();
    }
}

Where T is your service contract.