How can I get "campaign name" from traffic source?

[nevstas]

How can I get "campaign name" from traffic source?

Branch.initSession().then(function(data) {
    var campaign_name = ???
});

Can anybody help me?

[nevstas]

I found solution.

Branch.initSession().then(function(data) {
    var campaign_name = data['~campaign'];
});

I found example of data here https://help.branch.io/developers-hub/docs/attribution-api#handling-deep-link-data

{
   "randomized_device_token": "823600311503935224",
   "link": "https://example.app.link/X7OsnWv9TF",
   "session_id": "429691081177874743",
   "data": "{
            "$canonical_url": "https://example.com/home?utm_campaign=test",
            "$desktop_url": "http://example.com/home",
            "$og_description": "My Content Description",
            "$og_image_url": "http://lorempixel.com/200/200/",
            "$og_title": "46D6D28E-0390-40E4-A856-BD74F34D24C8",
            "+click_timestamp": 1503684563,
            "+clicked_branch_link": true,
            "+is_first_session": false,
            "+match_guaranteed": true,
            "custom": "blue",
            "~campaign": "new launch",
            "~channel": "facebook",
            "~creation_source": 3,
            "~feature": "sharing",
            "~id": 429691043152332059,
            "~referring_link": "https://example.app.link/X7OsnWv9TF",
            "~stage": "new person",
            "~tags": ["one","two"]
   }"
}