Saves campaign query string parameters into a session cookie so they can be retrieved and passed to your marketing automation system when needed.
npm install last-campaignSaves the last campaign (utm) query string parameters found on the current URL into a session cookie; so that they can be passed to your marketing automation system at any time during the users session.
By default, only utm_campaign, utm_source, utm_medium, utm_content, and utm_term are saved. Extra parameters can also be saved by passing them in via the options.params object. If the query string contains any of the parameters to be saved, a new session is assumed and previously set cookies will be removed.
lastCampaign() should be called on each page view.
Note: This is currently a browser only module because it reads the query string from window.location.search and sets cookies via the document.cookie. It could however, easily be modified to run as an express middleware and work on the server side.
Version 2 of last-campaign by default now sets cookies with a default session timeout of 30 minutes rather than a session cookie.
$ npm install last-campaign``
var lastCampaign = require('last-campaign');
lastCampaign();
lastCampaign();
Options
$3
Default session timeout in minutes. This should match the session timeout used in Google Analyutcs. Default
Passing in
will disable the session timeout and revert to using a session cookie. E.g. timeout: null$3
Cookie name prefix. Default
$3
An array of additional query string parameters to save. E.g.
.$3
An object of additional values to save. Values are only saved once per session.
$3
Specify if the default parameters,
utm_campaign, utm_source, utm_medium, utm_content, and utm_term should be saved. Default true$3
Specify a domain to set cookie on. If you want this to work across all of your sub-domains, set this to your domain name prefixed with a period. E.g.
Default
$3
Cookie path.
Default
Examples
$3
lastCampaign({
params: ['gclid']
});
$3
lastCampaign({
prefix: '_',
defaults: false,
params: ['foo']
});
$3
lastCampaign({
data: {
foo: 'bar'
}
});
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