At least the credentials should be in post data

[johanv]

Now all is passed as url parameters.

WCF expects one object as post data, and is able to convert this to json (RequestFormat = WebMessageFormat.Json). I tried this, so I can create {"api_key"="blabla", "site_key"="yadayada"}. Which is not accepted by the CiviCRM api.

I guess I'll need a custom converter that generates "api_key"="blabla"&"site_key"="yadayada"

[johanv]

http://stackoverflow.com/questions/6328972/using-x-www-form-urlencoded-content-type-in-wcf

[johanv]

And maybe this? http://stackoverflow.com/questions/7929384/pass-multiple-parameters-into-wcf-web-api-service