Google plus1 button API?

Question

API

In the documentation for the API, I did not find how to get the number of plus signs for a specific url.
Can someone come across, if such a possibility? (It's just that the tweeter has , but it's not in the documentation either)
If the API does not have such an opportunity, will it be legal to execute js and parse the page?

Answer 1

I have not tried it in practice, but after studying the requests, it turns out something like this:
Send a request to clients6.google.com/rpc?key= [developer key] with a post request of the form and in response you get
[
{
"method":"pos.plusones.get",
"id":"p",
"params": {
"nolog":true,
"id":"http://habrahabr.ru/",
"source":"widget",
"userId":"@viewer",
"groupId":"@self"
},
"jsonrpc":"2.0",
"key":"p",
"apiVersion":"v1"
}
]

[
{
"result": {
"kind": "pos#plusones",
"id": "http://habrahabr.ru/",
"isSetByViewer": false,
"metadata": {
"type": "URL",
"globalCounts": {
"count": 6.0
}
}
},
"id": "p"
}
]


Answer 2

But what about the fact that Twitter shortens all links? do they count?