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Quick Tracking:Web SDK basic features

Last Updated:Jun 08, 2026

Use the QuickTracking Web SDK to send event and page view logs through an instruction-based API.

1. SDK overview

1.1. How it works

The SDK uses an instruction-based API. Push instructions to the `aplus_queue` queue of the `aplus` environment variable:

aplus_queue.push({
    'action': "$APIName", 
    'arguments': [$arguments] // arguments are the input parameters for the specified API.
})
  • The `action` parameter specifies the API name. Accepted values:

    • `setMetaInfo`: Overwrites SDK default configurations.

    • `appendMetaInfo`: Appends to SDK default configurations.

    • `getMetaInfo`: Retrieves the current SDK configuration.

    • `record`: Sends event logs.

    • `sendPV`: Sends page view (PV) logs.

    • `recordAppLink`: Sends application launch events.

  • The `arguments` parameter is an array of input parameters for the specified API, in the same order as the API definition.

1.2. Example

// Change the default settings of the SDK.
aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: [metaName, metaValue]
});

// Get the current configuration of the SDK.
aplus.getMetaInfo(metaName);

// Send an event log.
aplus_queue.push({
    action: 'aplus.record',
    arguments: [trackerEventCode, eventType, eventParams]
});

// Send a page log.
aplus_queue.push({
    action: 'aplus.sendPV',
    arguments: [pageEventConfig, userData]
});

2. Log printing

aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['DEBUG', true]
});

3. Log sending policy

Logs are sent in near real-time when events are triggered.

4. Application configuration

Modify or append default configurations when importing the SDK.

// The appKey of the integrated application.
aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['appKey', 'Your_AppKey']
})

aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['trackDomain', 'Your_Data_Collection_Service_Endpoint']
});

// Enable debug mode.
aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['DEBUG', true]
});

MetaName

Description

metaValue description

Supported versions

DEBUG

Outputs SDK instrumentation logs to the console.

`true` enables logs. `false` disables logs.

all

appVersion

Current version of the web application.

Your web application version string.

all

appKey

The `appKey` assigned when you created the application.

Get the `appKey` from the platform.

all

aplus-rhost-v

Data collection domain name (Deprecated).

Get from the platform.

all

trackDomain

Data collection domain name.

Get from the platform.

v2.0.0 and later

_dev_id

Custom device ID.

Overwrites the auto-generated QuickTracking device ID.

all

_user_id

Sets the user ID.

A custom login account ID for your business.

all

_hold

Sends a hold signal. Set `_hold` multiple times during the SDK lifecycle, but `BLOCK` and `START` must be used in pairs. Otherwise, log sending is affected.

Enumeration values:

  • "START": Enables log sending.

  • "BLOCK": Blocks log sending. Complete preparations before sending logs in the `BLOCK` state.

all

Note: This applies only to API calls made using `aplus_queue.push`.

aplus-jsbridge-only

H5 log reporting switch.

  • `true`: Disables H5 log sending. In bridging scenarios, sends only bridge logs.

  • `false`: Enables H5 log sending (default).

all

aplus-utm-expire-days

Sets the expiration time for UTM parameters.

UTM parameters are valid for the current session by default. Set a custom expiration in days. The value is stored in a cookie, subject to the browser's cookie expiration limit.

v2.0.7 and later

aplus-preset-events-disabled

Disables default prebuilt events collected by the SDK.

Default: `undefined`. Assign an array to disable specific events. Example:

aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['aplus-preset-events-disabled', [
        '$$_page_leave', // Prebuilt page leave event.
    ]] 
});

v2.0.9 and later

5. Data collection switch

Data collection is enabled by default. Use the enable and disable APIs to control it. Available in v2.2.2 and later.

Important

Data collection is enabled by default. Unless a developer sets or deletes the `aplus-sdk-disable` field in local storage, data collection remains active.

5.1. Enable data collection

enableSDK

Example:

5.1.1. Synchronous integration

<script src='SDK_URL' charset="UTF-8"></script>
<script>
    aplus.initParams({
        appKey: "Your_AppKey",
        trackDomain: 'Your_Data_Collection_Domain',
        ...
        'disableSDK': false // Enable data collection (enabled by default).
    });
</script>

5.1.2. Asynchronous integration (instruction queue)

// Enable data collection.
window.aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['aplus-sdk-disable',  false]
})

5.1.3. Asynchronous integration (API)

// Enable data collection.
window.aplus.enableSDK();

5.2. Disable data collection

disableSDK

Example:

5.2.1. Synchronous integration

<script src='SDK_URL' charset="UTF-8"></script>
<script>
    aplus.initParams({
        appKey: "Your_AppKey",
        trackDomain: 'Your_Data_Collection_Domain',
        ...
        'disableSDK': true // Disable data collection.
    });
</script>

5.2.2. Asynchronous integration (instruction queue)

// Disable data collection.
window.aplus_queue.push({
    action: 'aplus.setMetaInfo',
    arguments: ['aplus-sdk-disable',  true]
})

5.2.3. Asynchronous integration (API)

// Disable data collection.
window.aplus.disableSDK();