Given a category $ce-order, how can one write a projection to count number of specific events per each stream in category. Documentation is sparse with very little guidance. I started with something like this. I need to find all orders that have more than one occurrence of specific event. Any help would be appreciated…
fromCategory(“order”)
.foreachStream()
.when({
$init:function(){
return {};
},
MyEvent: function(state,event){
}
});