@mntm/stats/lib/providers/gtm.js

A package for integrating analytics tools

import { loadScript, thenable } from '../utils.js';
import { launchParams } from '../launch.js';
import { safeWindow } from '../dom.js';
/**
 * Implements Google Tag Manager
 *
 * @param code GTM-XXXXXXX
 */
export const createProviderGTM = (code) => {
    const context = safeWindow;
    context.gtm = context.gtm || [];
    context.gtm.push({
        'gtm.start': Date.now(),
        'event': 'gtm.js'
    });
    context.gtm.push({
        userId: launchParams.vk_user_id
    });
    const load = loadScript(`https://www.googletagmanager.com/gtm.js?id=${code}&l=gtm`);
    const ready = load.then(() => {
        if (context.gtm.push === Array.prototype.push) {
            throw new Error('net::ERR_BLOCKED_BY_CLIENT');
        }
    });
    const provider = {
        send(event, params) {
            return thenable(ready, () => {
                context.gtm.push({
                    event: 'event_gtm',
                    ec: params.category || 'main',
                    ea: event,
                    el: params.label || ''
                });
            });
        }
    };
    return provider;
};