Facebook Graph Api Insights Filtering Param Usage

Question

For filtering param, This page demo-ed IN and CONTAIN,

https://developers.facebook.com/docs/marketing-api/insights/v2.4#filtering

curl -G \
-d "filtering=[{'field':'adgroup.delivery_info','operator':'IN','value':['archived']}]" \
-d "access_token=<ACCESS_TOKEN>" \
"https://graph.facebook.com/<API_VERSION>/act_<AD_ACCOUNT_ID>/insights"

curl -G \
-d "filtering=[{'field':'adcampaign.name','operator':'CONTAIN','value':'18-25'}]" \
-d "access_token=<ACCESS_TOKEN>" \
"https://graph.facebook.com/<API_VERSION>/act_<AD_ACCOUNT_ID>/insights"

But the information is very limited. Where can I find more info about the usage of filtering? e.g. How it should be if I want to filter out all items with blank (ad campaign) names? Or only the items with some attr (any type, e.g. dict or array) not empty (undefined).

Answer 1

Perhaps here you can find which fields are filterable and which operators are supported.

https://developers.facebook.com/docs/marketing-api/ad-rules/overview/evaluation-spec

Description in section Metadata filters supported by Trigger and Schedule Based rules