Preset properties

Last updated 10/03/2026

1. Preset properties for all events

The following preset properties are carried by all events on uni-app mini program platforms, including auto-tracked events

Property name	Display name	Property type	Description
#ip	IP address	Text	The user's IP address, which AE uses to get the user's geographic location
#country	Country	Text	The user's country, generated from the IP address
#country_code	Country code	Text	The country code of the user's country (ISO 3166-1 alpha-2, that is, two uppercase letters), generated from the IP address
#province	Province	Text	The user's province, generated from the IP address
#city	City	Text	The user's city, generated from the IP address
#device_model	Device model	Text	Model of the user's device, such as iPhone 8
#device_id	Device ID	Text	The user's device ID, which is the UUID generated during initialization
#screen_height	Screen height	Numeric	Screen height of the user's device, such as 1920
#screen_width	Screen width	Numeric	Screen height of the user's device, such as 1080
#manufacturer	Device manufacturer	Text	Manufacturer of the user's device, such as Apple and vivo
#os_version	OS Version	Text	iOS 11.2.2, Android 8.0.0, etc.
#os	OS	Text	Such as Android and iOS
#network_type	Network status	Text	Network status when the event is uploaded, such as WIFI, 3G, and 4G
#lib	SDK type	Text	The type of SDK you integrated, such as MP (mini program) and MG (mini game)
#lib_version	SDK version	Text	The version of the SDK you integrated
#scene	Scene value	Numeric	Scene value passed in when the WeChat Mini Program starts
#mp_platform	Mini program platform	Text	Identifies the platform where the app runs
#zone_offset	Time Zone Offset	Numeric	Offset in hours of the data time relative to UTC
#system_language	System language	Text	System language of the user's device (ISO 639-1, that is, two lowercase letters), such as zh and en

2. Preset properties of auto-tracked events

The following preset properties are specific to each auto-tracked event

• Preset properties of mini program launch (ta_mp_show)

Property name	Display name	Property type	Description
#url_path	Page path	Text	Path of the page displayed when the mini program launches

• Preset properties of mini program hide (ta_mp_hide)

Property name	Display name	Property type	Description
#duration	Event duration	Numeric	The duration from this launch ta_mp_show to the hide ta_mp_hide, in seconds

3. Get preset properties

When server-side tracking needs some preset properties from the app, you can use this method to get the preset properties on the client side and then pass them to the server.

//Get the property object
var presetProperties=TDAnalytics.getPresetProperties();
//Generate event preset properties
var properties=presetProperties.toEventPresetProperties();
/*
      {
         "#device_model":"iPhone 5",
         "#device_id":"3204487163-1624513721217",
         "#screen_width":320,
         "#screen_height":568,
         "#os":"iOS",
         "#os_version":"10.0.1",
         "#network_type":"wifi",
         "#zone_offset":8,
         "#manufacturer":"Apple"
       }
 */
//Get a specific preset property
var os=presetProperties.os;//OS type, such as Android
var osVersion=presetProperties.osVersion;//OS version
var networkType=presetProperties.networkType;//Network type
var manufacture=presetProperties.manufacturer;//Device manufacturer
var deviceModel=presetProperties.deviceModel;//Device model
var screenWidth=presetProperties.screenWidth;//Screen width
var screenHeight=presetProperties.screenHeight;//Screen height
var deviceId=presetProperties.deviceId;//Device ID
var zoneOffset=presetProperties.zoneOffset;//Time zone offset

IP address, country, and city information is parsed and generated on the server side. The client doesn't provide APIs to get these properties