MEAN Cookbook

How to do it...

Let's add image transformation URL parameters to our image API using Cloudinary's transformation options by following these steps:

1. First, we will need to create a whitelist of the URL query parameters we want to pick out for specific transformations in Cloudinary. We will use Lodash's pick method to filter out only the specific query keys and values that we want to allow. We will turn these into a set of options, which we will pass through to Cloudinary:

var cloudinary = require('cloudinary');var JSONAPIError = require('jsonapi-serializer').Error;var _pick = require('lodash/pick');var self = module.exports = {  ...  getTransformation: function(req, res, next) { let transforms = _pick(req.query, ['width', 'height', 'crop', ...