Question

I can use FQL multiquery in batch request? I have not found examples in google.

I run this query

[{\"method\":\"GET\",
\"relative_url\":\"fql?q=
   {\"posts\":\"SELECT post_id, actor_id, source_id, target_id, message, created_time FROM stream WHERE source_id = ... LIMIT 0, 10\"}\, 
   {\"users\":\"SELECT uid, name FROM users WHERE uid IN (SELECT actor_id FROM #posts) LIMIT 0, 10\"}
 \"}]

But in response I get:

HttpResponse: 400: {"error":{"message":"batch parameter must be a JSON array","type":"GraphBatchException"}}

Answer 1

The Batching feature returns this message when you submit a batch of size 1. For instance

curl -k -F 'access_token=...' \
  -F 'batch=[{"method":"GET","relative_url":"me"}]' https://graph.facebook.com

gives the same error, whereas

curl -k -F 'access_token=...' \
  -F 'batch=[{"method":"GET","relative_url":"me"}, \
  {"method":"GET","relative_url":"me"}]' https://graph.facebook.com

works as expected.

The following works for me:

curl -k -F 'access_token=...' \
  -F 'batch=[{"method":"POST","relative_url":"method/fql.multiquery?queries={\"q1\":\"SELECT uid, rsvp_status FROM event_member WHERE eid=199886676776200\",\"q2\":\"SELECT name, url, pic FROM profile WHERE id IN (SELECT uid FROM #q1)\"}"}, \
  {"method":"GET","relative_url":"me"}]' https://graph.facebook.com