adding and querying pointers isn't working with the REST API for Parse.com

Question

I"m using the following commands which i've copied over from the documentation. Assume that I'm passing in the application id and keys in each curl statement for brevity.

1. create player

   curl -X POST \ -d '{"name":"abhinav", "rank" :"amazing"}' \ https://api.parse.com/1/classes/Player

Player objectId: HgMZF6H90L

2. Create game and add pointer relation

   curl -X POST \ -d '{"Level" : "TWO"}' \ https://api.parse.com/1/classes/GameScore

GameScore objectId: cwYIEwFaq9

curl -X PUT \
  -d '{"opponents":{"__op":"AddRelation","objects":[{"__type":"Pointer","className":"Player","objectId":"HgMZF6H90L"}]}}' \
  https://api.parse.com/1/classes/GameScore/tDiFZSE0lQ

Now I check from the Data browser and the GameScore object has a field with Relation. clicking on the "View Relations" navigates me to the correct list underneath. Working fine except that it says "Relation" and not pointer. Not sure if that is relevant

HOWEVER, I'm not able to query this information from the REST API. A GET results in the relation data but no objectId for the player available.

curl -X GET \
  https://api.parse.com/1/classes/GameScore/cwYIEwFaq9

result:

{"Level":"TWO","createdAt":"2014-06-11T08:49:43.325Z","objectId":"cwYIEwFaq9","opponents":{"__type":"Relation","className":"Player"},"updatedAt":"2014-06-11T08:51:01.093Z"}

tried with include option but that results in some error

curl -X GET \
  --data-urlencode "include=opponents" \
  https://api.parse.com/1/classes/GameScore/cwYIEwFaq9

result:

code 107, invalid JSON

What am I doing wrong?

Answer 1

why are you using "Remove" to add a relation? Look at the docs again.

go to Docs section "Creating Roles" again....

 "__op": "AddRelation",
          "objects": [
            {
              "__type": "Pointer",
              "className": "_Role",
              "objectId": "Ed1nuqPvc"
            }
          ]

-- EDIT to get using "include=opponents" you could create with this:

{"opponents":{"__op":"Add","objects":[{"__type":"Pointer","className":"_Role","objectId":"Ed1..."}]}}