<form action="https://api.wapka.org/PostCreator" method="post">
   <input type="hidden" name="apikey" value="{{VAR(APIKEY)}}">
   <input name="forumid" type="hidden" value="23731"/><br/>
   <input name="title" type="text" value="Test"/><input name="content" type="text" value="hi, hello"/><br/>
   <input type="submit" value="submit"/>
 </form>