Mergn Web SDK

Installation

Mergn Web SDK is available as an npm package.

Using a package manager

npm install --save mergn-webapp-sdk@latest

import mergn from 'mergn-webapp-sdk';

Using a CDN

<script src="https://cdn.jsdelivr.net/npm/mergn-webapp-sdk@latest/dist/index.global.js"></script>

Initialization

Add your Mergn account credentials

mergn.init('Api_Key', options?: {
  swPath?: string || '/'; // custom service worker path. Defaults to root '/'
}); // Replace with values applicable to you. Refer below

Api_Key (mandatory): This value is given by Mergn Team.

options (optional): Additional initialization parameters.

mergn-sw.js (mandatory): A service worker file given by Mergn Team to enable features like web push notifications. This file must be kept in the root of the project like public folder in case of React. Or a custom path given in swPath option.

Event Record

Events monitor specific user actions within your app or website, such as app launch, product view, song play, photo share, purchase, or item favoring.

mergn.recordEvent(eventName: string, eventProperties?: { eventProperty: string; value: string | number }[];
): Promise<void>

Example:

// event without properties
mergn.recordEvent('Product viewed')

// event with properties
mergn.recordEvent('Product viewed', [{ eventProperty: 'Mens Accessories', value: 59.99 }])

Note: In most cases, it's recommended to use recordEvent without awaiting the returned Promise. This allows your application to continue running without waiting for the event recording to complete.

Attribute Record

Records or updates the attributes of user such as name, age or address.

mergn.recordAttribute(attributeName: string, value: string | number): Promise<void>

mergn.recordAttribute('Age', 35);

Note: In most cases, it's recommended to use recordAttribute without awaiting the returned Promise. This allows your application to continue running without waiting for the attribute recording to complete.

User Set Identity

Use this method for setting identity.

await mergn.login('Unique_Identity'): Promise<void>;

Unique_Identity (mandatory): This value is the customer's unique identity in your database like Id or Email.

Note: it's recommended to use login with awaiting the returned Promise. This allows your application to set identity successfully which would later be used for recording events and attributes.

User Logout

Use this method where user is logged out successfully to record logout event.

mergn.logout();

Offline Mode

mergn-webapp-sdk automatically queue events in case of internet disruption, and sends them once internet is restored while the user is on the website

max event queue limit is 50, after which events are ignored

Debugging

! MUST DISABLE ON PRODUCTION

To show logs while debugging

mergn.setDebugLevel(LOG_LEVEL);

LOG_LEVEL (mandatory): Enter corresponding value:

NONE = 0, INFO = 1, ERROR = 2, ALL = 3,

Default is 0