@mntm/stats/lib/pixel/fb.js

A package for integrating analytics tools

import { safeWindow } from '../dom.js';
import { loadScript, thenable } from '../utils.js';
/**
 * Implement FB Pixel
 *
 * @param code XXXXXXX
 */
export const createPixelFB = (code) => {
    const context = safeWindow;
    context.fbq = Object.assign(function fbq() {
        // eslint-disable-next-line prefer-rest-params
        const args = arguments;
        if (context.fbq.callMethod) {
            context.fbq.callMethod.apply(context.fbq, args);
        }
        else {
            context.fbq.queue.push(args);
        }
    }, {
        loaded: true,
        version: '2.0',
        queue: []
    });
    context.fbq.push = context.fbq;
    context._fbq = context.fbq;
    const load = loadScript('https://connect.facebook.net/en_US/fbevents.js');
    const ready = load.then(() => {
        context.fbq('init', code, {});
        context.fbq('track', 'PageView', {});
    });
    const pixel = {
        track(event, params) {
            return thenable(ready, () => {
                context.fbq('track', event, params || {});
            });
        },
        custom(event, params) {
            return thenable(ready, () => {
                context.fbq('trackCustom', event, params || {});
            });
        }
    };
    return pixel;
};