Send advanced push notification in parse.com with Rest API - rest

Question

Im trying to send push with two criteria in where.
I make this so:
curl -X POST
-H "X-Parse-Application-Id: myappId" \
-H "X-Parse-REST-API-Key: myRESTApiId" \
-H "Content-Type: application/json" \
-d '{
"where": {“$and”:[{“deviceType": "winphone”},{”channels":{"$all":[“string1”],"$nin":[“string2”]}}]},
"data": {"alert": “String1 is comming”}
}' \
https://api.parse.com/1/push
Something like: https://parse.com/questions/rest-api-or-constraint-on-multiple-fields-using-where, but I getting error message: error code 107 - invalid JSON Parse
How can I send push notification for given device and for given channel with condition $all and $nin.
Thanks for your help!
Hipek

Answer 1

This error is likely being returned because your where value does not match the REST API spec. You will also want to make sure you are consistent in your use of double quotes as these can also lead to malformed JSON errors (e.g. do not use “ and ”, use ").
After fixing that, we end up with the following, which is still not valid per the REST API Parse docs:
"where": {
"$and": [
{"deviceType": "winphone”},
{"channels": {
"$all": ["string1"],
"$nin":["string2"]}
}
]
},
There's a couple of problems with your query:
$and is not a valid Parse REST API operator, and does not appear in the REST API docs. All constraints in a where query are implicitly ANDed, so this is unnecessary, anyway.
Your $all and $nin constraints over channels conflict with each other as there cannot be more than one such query per key. You may want to instead create a unique channel for those installations that should receive messages aimed at the string1 channel but not the string2 channel.