branch.init(
    branch_key,
    options,
    callback (err, data),
);

callback(
	"Error message",
	{
		data_parsed: { }, // If the user was referred from a link, and the link has associated data, the data is passed in here
		referring_identity: '12345', // If the user was referred from a link, and the link was created by a user with an identity, that identity is here
		has_app: true, // Whether the user has the app installed already
		identity: 'BranchUser', // Unique string that identifies the user
		~referring_link: 'https://bnc.lt/c/jgg75-Gjd3' // The referring link click, if available
	}
);

branch.setRequestMetadata("key","value");

branch.setAPIUrl("https://api2.myhost.io");

branch.getAPIUrl();

branch.data(function(err, data) {
	response.html(err || JSON.stringify(data));
});

branch.first(function(err, data) {
	response.html(err || JSON.stringify(data));
});

branch.setIdentity(
    "unique-user-aa11",
    callback (err, data)
);

callback(
     "Error message",
     {
          randomized_bundle_token: '12345', // Server-generated ID of the user identity, stored in `sessionStorage`
          link:                    'url',   // New link to use (replaces old stored link), stored in `sessionStorage`
          referring_data_parsed:   { },     // Returns the initial referring data for this identity, if exists, as a parsed object
          referring_identity:      '12345'  // Returns the initial referring identity for this identity, if exists
     }
);

branch.logout(
    callback (err)
);

callback(
     "Error message"
);

branch.getBrowserFingerprintId(function(err, data) { console.log(data); });

callback(
     null,
     '00000000000000000', // browser-fingerprint-id, stored in `localStorage`
);

branch.lastAttributedTouchData(
    attribution_window,
    callback (err, data)
);

// Example for how to log a `PURCHASE` Commerce Event

var event_and_custom_data = {
   "transaction_id": "tras_Id_1232343434",
   "currency": "USD",
   "revenue": 180.2,
   "shipping": 10.5,
   "tax": 13.5,
   "coupon": "promo-1234",
   "affiliation": "high_fi",
   "description": "Preferred purchase",
   "purchase_loc": "Palo Alto",
   "store_pickup": "unavailable"
};

var content_items = [
{
   "$content_schema": "COMMERCE_PRODUCT",
   "$og_title": "Nike Shoe",
   "$og_description": "Start loving your steps",
   "$og_image_url": "http://example.com/img1.jpg",
   "$canonical_identifier": "nike/1234",
   "$publicly_indexable": false,
   "$price": 101.2,
   "$locally_indexable": true,
   "$quantity": 1,
   "$sku": "1101123445",
   "$product_name": "Runner",
   "$product_brand": "Nike",
   "$product_category": "Sporting Goods",
   "$product_variant": "XL",
   "$rating_average": 4.2,
   "$rating_count": 5,
   "$rating_max": 2.2,
   "$creation_timestamp": 1499892855,
   "$exp_date": 1499892854,
   "$keywords": [ "sneakers", "shoes" ],
   "$address_street": "230 South LaSalle Street",
   "$address_city": "Chicago",
   "$address_region": "IL",
   "$address_country": "US",
   "$address_postal_code": "60604",
   "$latitude": 12.07,
   "$longitude": -97.5,
   "$image_captions": [ "my_img_caption1", "my_img_caption_2" ],
   "$condition": "NEW",
   "$custom_fields": {"foo1":"bar1","foo2":"bar2"}
},
{
   "$og_title": "Nike Woolen Sox",
   "$canonical_identifier": "nike/5324",
   "$og_description": "Fine combed woolen sox for those who love your foot",
   "$publicly_indexable": false,
   "$price": 80.2,
   "$locally_indexable": true,
   "$quantity": 5,
   "$sku": "110112467",
   "$product_name": "Woolen Sox",
   "$product_brand": "Nike",
   "$product_category": "Apparel & Accessories",
   "$product_variant": "Xl",
   "$rating_average": 3.3,
   "$rating_count": 5,
   "$rating_max": 2.8,
   "$creation_timestamp": 1499892855
}];

var customer_event_alias = "event alias";

branch.logEvent(
   "PURCHASE",
   event_and_custom_data,
   content_items,
   customer_event_alias,
   function(err) { console.log(err); }
);

var custom_data = {
   "Custom_Event_Property_Key1": "Custom_Event_Property_val1",
   "Custom_Event_Property_Key2": "Custom_Event_Property_val2"
};

branch.logEvent(
    'custom_event_name',
    custom_data,
    function(err) { console.log(err); }
);

branch.link({
    tags: [ 'tag1', 'tag2' ],
    channel: 'facebook',
    feature: 'dashboard',
    stage: 'new user',
    data: {
        mydata: 'something',
        foo: 'bar',
        '$desktop_url': 'http://myappwebsite.com',
        '$ios_url': 'http://myappwebsite.com/ios',
        '$ipad_url': 'http://myappwebsite.com/ipad',
        '$android_url': 'http://myappwebsite.com/android',
        '$og_title': 'My App',
        '$og_description': 'My app\'s description.',
        '$og_image_url': 'http://myappwebsite.com/image.png'
    }
}, function(err, link) {
    console.log(err, link);
});

callback(
    "Status message here",
    "https://example.app.link/l/3HZMytU-BW"
);

branch.deepview(
    {
        channel: 'facebook',
        data: {
            mydata: 'content of my data',
            foo: 'bar',
            '$deeplink_path': 'item_id=12345'
        },
        feature: 'dashboard',
        stage: 'new user',
        tags: [ 'tag1', 'tag2' ],
    },
    {
        make_new_link: true,
        open_app: true
    },
    function(err) {
        console.log(err || 'no error');
    }
);

$('a.deepview-cta').click(branch.deepviewCta); // jQuery example

document.getElementById('my-elem').onClick = branch.deepviewCta; // General example

<a href='...' onclick='branch.deepviewCta()'> // In HTML

// We recommend assigning `deepviewCta()` in `deepview()` callback:
branch.deepview(data, option, function(err) {
    if (err) {
        throw err;
    }
    $('a.deepview-cta').click(branch.deepviewCta);
});

// You can call `deepviewCta()` any time after `deepview()` is finished
branch.deepviewCta();

// When debugging, call `deepviewCta()` with an error callback
branch.deepviewCta(function(err) {
	if (err) {
		console.log(err);
	}
});

var listener = function(event, data) { console.log(event, data); }

// Specify an event to listen for
branch.addListener('willShowJourney', listener);

// Listen for all events
branch.addListener(listener);

var listener = function(event, data) { console.log(event, data); }

// Specify an event to listen for
branch.addListener('willShowJourney', listener);

// Remover listener
branch.removeListener(listener);

branch.setBranchViewData({
  tags: ['tag1', 'tag2'],
  data: {
    mydata: 'something',
    foo: 'bar',
    '$deeplink_path': 'open/item/1234'
  }
},
function(err) {
	if (err) {
		console.log(err);
	}
});

branch.closeJourney(function(err) {
	if (err) {
		console.log(err);
	}
});

branch.disableTracking(
	true,
	function(err) {
		if (err) {
			console.log(err);
		}
	}
);

// Example for an EEA resident who has denied both ad personalization and data usage consent
branch.setDMAParamsForEEA(
  true,
  false,
  false,
	function(err) {
		if (err) {
			console.log(err);
		}
	}
);