1 General paramaters for the Javascript tracker

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## 2. General parameters

• 2.1 Setting the endpoint
  • 2.1.1 setCollectorCf
  • 2.1.2 setCollectorUrl
• 2.2 Setting the application ID
  • 2.2.1 setAppId
• 2.3 Setting the user ID
  • 2.3.1 setUserId

There are two "global parameters" that should be set for the Javascript tracker:

1. The collector endpoint
2. The application ID

These are generally set as part of the pageview tracking tags, before the actual trackPageView method is called e.g.

<!-- SnowPlow starts plowing -->
<script type="text/javascript">
var _snaq = _snaq || [];

_snaq.push(['setCollectorCf', '{{CLOUDFRONT-DOMAIN}}']);
_snaq.push(['setAppId', '{{MY-SITE-ID}}']);
_snaq.push(['trackPageView']);

(function() {
var sp = document.createElement('script'); sp.type = 'text/javascript'; sp.async = true; sp.defer = true;
sp.src = ('https:' == document.location.protocol ? 'https' : 'http') + '://d1fc8wv8zag5ca.cloudfront.net/0.10.0/sp.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(sp, s);
})();
 </script>
<!-- SnowPlow stops plowing -->

### 2.1 Setting the endpoint

Endpoint refers to the location of your collector: you need to point your Javascript tracker to your collector endpoint, to ensure that data generated by the tracker is logged by the collector.

If you are using a Cloudfront collector you can use setCollectorCf to set the endpoint. If you are using any other collector (e.g. the Clojure collector, or SnowCannon), then you should use setCollectorUrl.

#### 2.1.1 Setting a Cloudfront endpoint using `setCollectorCf`

You can set the collector endpoint for the Cloudfront collector using:

_snaq.push(['setCollectorCf', '{{CLOUDFRONT-SUBDOMAIN}}']);

So if your domain is d3rkrsqld9gmqf, you would include:

_snaq.push(['setCollectorCf', 'd3rkrsqld9gmqf']);

in your SnowPlow tag.

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#### 2.1.2 Setting a collector endpoint (e.g. for the Clojure collector) using `setCollector URL`

If you are running a different collector (not the Cloudfront collector) then you set the collector endpoint using:

_snaq.push(['setCollectorUrl', '{{COLLECTOR-URL}}'])

E.g. if your collector endpoint is at 'my-company.c.snplow.com' then you would include:

_snaq.push(['setCollectorUrl', 'my-company.c.snplow.com'])

in your SnowPlow tags.

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### 2.2 Setting the application ID

You can set different application IDs on different parts of your site. You can then distinguish events that occur on different applications by grouping results based on application_id.

#### 2.2.1 Setting the application ID using `setAppId`

To set the application ID, use the setAppId method i.e.:

_snaq.push(['setAppId', 'my_application_id_here']);

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### 2.3 Setting the user ID

The Javascript tracker automatically sets a domain_userid based on a first party cookie.

There are many situations, however, when you will want to identify a specific user using an ID generated by one of your business systems. To do this, you use the setUserId method.

#### 2.3.1 Setting the user ID using `setUserId`

To set the user ID, use the setUserId method i.e.:

_snaq.push(['setUserId', '[email protected]']);

Typically, companies employ this method at points in the customer journey when the user identifies him / herself e.g. if he / she logs in.

Note: this will only set the user ID on further events fired while the user is on this page; if you want events on another page to record this user ID too, you must call setUserId on the other page as well.

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