example to publish event to Azure Event Grid using Request module and Azure REST interface

publishEvent.js

const request = require('request');

function publishEvent(topicURL, topicSecret, eventPayload, callback) {

    const options = {
        method: 'POST',
        url: topicURL,
        headers: {
            'aeg-sas-key': topicSecret
        },
        json: true,
        body: [eventPayload]
    }

    request(options, (err, response, body) => {
        if (err) {
            callback(err)
        } else {
            callback(null, true);
        }
    })
}