initial_example.js

const fs = require('fs');
const Storage = require('@google-cloud/storage');
const BUCKET_NAME = ''; // This would actually have the name of our bucket
const storage = new Storage({
  projectId: '', // This should be your Google Cloud Project ID where you're deploying your function & have your bucket
  keyFilename: './keyfile.json'
});

exports.webhook = (request, response) => {
  const data = JSON.stringify(request.body, null, 2);
  const fileName = `/tmp/${request.body.location_id}_${request.body.entity_id}_${Date.now()}.json`;

  fs.writeFileSync(fileName, data);

  storage
    .bucket(BUCKET_NAME)
    .upload(`${fileName}`)
    .then((success) => {
      fs.unlink(fileName);
      console.log(success);
      response.status(200).send();
    })
    .catch((error) => {
      fs.unlink(fileName);
      console.log(error);
      response.status(403).send(error);
    });
};

exports.event = (event, callback) => {
  callback();
};