Facebook Graph API: I get "Calls to stream have exceeded the rate of 600 calls per 600 seconds." at 38-th API call

Question

My application tries to get Facebook page's photos information by sending API requests like this:

https://graph.facebook.com/152623178098449/photos?fields=id,name,from,link,created_time,comments.filter(stream).limit(20).fields(id,message,from,created_time,like_count,comment_count),likes.limit(20).fields(id,profile_type),sharedposts.limit(20).fields(from,id)&limit=25&after=...&access_token=...

It sends 1 call in 1 second, but after 38-th call to API I get:

Error: (#613) Calls to stream have exceeded the rate of 600 calls per 600 seconds.

I don't use batch requests. Why FB thinks that my application exceeds the limit?

Thanks!

Answer 1

Please see my answer here: Do Facebook Graph API calls using field expansion count differently against the rate limits than batch calls

you are using field expansion, and it appears that facebook counts this as additional calls under the rate limit.