http.querystring doesn't support array parameters

[ebachle]

In a request like this one (normally this is URL encoded):

http://host.example/something/entries?include[]=ask.placed.share&include[]=ask.placed.reminder&include[]=ask.placed.confirm.reminder&include[]=ask.matched.share&include[]=ask.matched.reminder&include[]=ask.payment_failed.reminder&include[]=ask.authorization_failed.reminder&include[]=ask.additional_days_to_ship_alert&include[]=ask.how_it_works.penalty&include[]=ask.condition_tutorial&include[]=bid.placed.share&include[]=bid.placed.reminder&include[]=bid.matched.share&include[]=bid.matched.reminder&include[]=bid.payment_failed.reminder&include[]=bid.authorization_failed.reminder&include[]=bid.additional_days_to_ship_alert&include[]=bid.how_it_works.penalty&include[]=bid.condition_tutorial&include[]=bid.confirm_condition&include[]=want.placed.share&include[]=want.placed.reminder&include[]=hold.placed.share&include[]=hold.placed.reminder&include[]=share&query=%7B%0A%20%20%22content_group%22%20:%20%22streetwear-clothing%22%0A%7D&locale=ja-jp

The trace only has the very last include[] query string array parameter of "share" in the include object.

Approximation from the trace:

queryString = {
	include = {
		share
	}
	locale = ja-jp
	query = %7B%0A%20%20%22content_group%22%20:%20%22streetwear-clothing%22%0A%7D
}

Not sure if this is an issue with the nginx module, the cpp tracer, or something I'm doing. But I'd be open to thoughts on how to resolve it.

[dmehala]

Hello @ebachle

The NGINX module does not set those tags, nor the cpp tracer. In fact, the module only set the whole url as a span tag, then, the Datadog Agent or the backend split the url.

I can bring this ticket to the respective teams but there's nothing on the plugin nor the cpp tracer I can do (Well, I can split the URL in the cpp tracer but that will be costly, inefficient and add unnecessary tech debt).

In the meanwhile, I suggest to open a feature request here for visibility.