Rocket.Chat/app/livechat/server/methods/webhookTest.js

import { Meteor } from 'meteor/meteor';
import { HTTP } from 'meteor/http';

import { settings } from '../../../settings';

const postCatchError = Meteor.wrapAsync(function(url, options, resolve) {
	HTTP.post(url, options, function(err, res) {
		if (err) {
			resolve(null, err.response);
		} else {
			resolve(null, res);
		}
	});
});

Meteor.methods({
	'livechat:webhookTest'() {
		this.unblock();

		const sampleData = {
			type: 'LivechatSession',
			_id: 'fasd6f5a4sd6f8a4sdf',
			label: 'title',
			topic: 'asiodojf',
			createdAt: new Date(),
			lastMessageAt: new Date(),
			tags: [
				'tag1',
				'tag2',
				'tag3',
			],
			customFields: {
				productId: '123456',
			},
			visitor: {
				_id: '',
				name: 'visitor name',
				username: 'visitor-username',
				department: 'department',
				email: 'email@address.com',
				phone: '192873192873',
				ip: '123.456.7.89',
				browser: 'Chrome',
				os: 'Linux',
				customFields: {
					customerId: '123456',
				},
			},
			agent: {
				_id: 'asdf89as6df8',
				username: 'agent.username',
				name: 'Agent Name',
				email: 'agent@email.com',
			},
			messages: [{
				username: 'visitor-username',
				msg: 'message content',
				ts: new Date(),
			}, {
				username: 'agent.username',
				agentId: 'asdf89as6df8',
				msg: 'message content from agent',
				ts: new Date(),
			}],
		};

		const options = {
			headers: {
				'X-RocketChat-Livechat-Token': settings.get('Livechat_secret_token'),
			},
			data: sampleData,
		};

		const response = postCatchError(settings.get('Livechat_webhookUrl'), options);

		console.log('response ->', response);

		if (response && response.statusCode && response.statusCode === 200) {
			return true;
		}
		throw new Meteor.Error('error-invalid-webhook-response');
	},
});