Instagram Graph API - Use Business Discovery and Insights edge combined - facebook-graph-api

Question

I am able to fetch the list of media objects associated with an external user using the following URL
GET (my IG user id)?fields=business_discovery.username(therock){media{caption,children,comments_count,like_count,id,media_type,media_url,owner,timestamp,username}}
How do I fetch the Insights of an external user using the above method. I do know to fetch the insights of my own account using the following URL
GET (my IG user id)/insights?metric=impressions&period=week
When I try to fetch the insights using the URL below
GET (my IG user id)?fields=business_discovery.username(therock){insights}}
the following error is thrown
{
"error": {
"message": "Syntax error \"Expected end of string instead of \"}\".\" at character 46: business_discovery.username(therock){insights}}",
"type": "OAuthException",
"code": 2500,
"fbtrace_id": "FeWhDF4hOJY"
}
}
Is it possible to fetch the insights of an external account?

Answer 1

To retrieve insights from a FB page you have to provide credentials from one of the page admins. If you have them, you don't need to use the business_discovery endpoint. If you don't have them, you cannot retrieve insights.

Answer 2

GET (my IG user id)?fields=business_discovery.username(therock){insights}}
Looks like you simply left an extra } there at the end - remove the superfluous one, then the error should be gone.
(With {media{...}} you had two levels of nesting, but now you have only one.)