App & tracker information

Information about the app and the tracker instance that the events originate from is tracked using:

1. Atomic event properties
2. Application context entity on mobile apps

Atomic event properties

These properties can be assigned across all our trackers regardless of the platform.

Atomic table field	Type	Description	Example values
name_tracker	text	The tracker namespace	tracker_1
app_id	text	Unique identifier for website / application	snow-game-android
platform	text	The platform the app runs on	web, mob, app
v_tracker	text	Identifier for Snowplow tracker. The format follows the convention of TRACKER_NAME-TRACKER_VERSION	js-2.16.2

Tracker namespace

The tracker namespace parameter is used to distinguish between different trackers. The name can be any string that does not contain a colon or semi-colon character. Tracker namespacing allows you to run multiple trackers, pinging to different collectors.

How to track?

You can specify the tracker namespace and app ID when creating a new tracker instance (the newTracker call in the JavaScript and Snowplow.createTracker in mobile trackers). The tracker platform is set automatically but can be overriden in most of our trackers. The tracker version is also set automatically.

Application context entity on mobile apps

This context entity is automatically tracked with events on mobile apps and gives information about the app version and build number.

Context entity: application

Schema for an application context which automatically tracks version number and build name when using our mobile SDK's.

Schema URI: iglu://com.snowplowanalytics.mobile/application/jsonschema/1-0-0

Web	Mobile	Tracked automatically
❌	✅	✅

👀 Example

{
  "version": "1.1.0",
  "build": "s9f2k2d"
}

📃 Schema properties definition

Table

Property	Type	Description	Required?
version	"string"	Version number of the application e.g 1.1.0	✅
build	"string"	Build name of the application e.g s9f2k2d or 1.1.0 beta	✅

JSON schema

{
  "$schema": "http://iglucentral.com/schemas/com.snowplowanalytics.self-desc/schema/jsonschema/1-0-0#",
  "description": "Schema for an application context which automatically tracks version number and build name when using our mobile SDK's.",
  "self": {
    "vendor": "com.snowplowanalytics.mobile",
    "name": "application",
    "format": "jsonschema",
    "version": "1-0-0"
  },
  "type": "object",
  "properties": {
    "version": {
      "type": "string",
      "description": "Version number of the application e.g 1.1.0",
      "maxLength": 255
    },
    "build": {
      "type": "string",
      "description": "Build name of the application e.g s9f2k2d or 1.1.0 beta",
      "maxLength": 255
    }
  },
  "required": [
    "version",
    "build"
  ],
  "additionalProperties": false
}

How to track?

It is tracked on our iOS and Android trackers as well as on the React Native and Flutter tracker (when used in iOS or Android).