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npm version

Compile cloudinary URLs at build time.



You can define the globals for your cloudinary URLs in a cloudinaryrc.json that should be placed in the root of your project.

  "native": {
    "cloud_name": "trivago",
    "secure": true
  "overrideBaseUrl": true,
  "host": "",
  "defaultTransforms": {
    "fetch_format": "auto",
    "quality": "auto"
  • native - these are directly passed into the cloudinary-core upon instantiation, you can use all the configs in the official cloudinary API.
  • overrideBaseUrl - set this to true if you want to override cloudinary default URL with the property host.
  • host - a host to perform replace the default generated base URL (
  • defaultTransforms - an object that holds transforms that are applied by default to all the generated cloudinary URLs. These properties can still be overwritten for individual cases, by passing the same property within the option.transforms of that __buildCloudinaryUrl call.


__buildCloudinaryUrl(assetName, options);


  • assetName {string} [mandatory] - a string that represents the asset/image name.
  • options {object} [optional] - the options object aggregates a series of optional parameters that you can feed in to the plugin in order to customize your URL. Again note that all parameters inside of options are entirely optional.
  • options.transforms {object} - these object are the cloudinary transformations to apply to the URL (e.g. {height: 250, width: 250}). For convince they will keep the same API as the cloudinary-core image transformations, these said you can check the official docs and use the cloudinary-core API directly.
  • options.prefix {string} - a prefix string for you assetName.
  • options.postfix {string} - a postfix string for you assetName.
  • options.resourceExtension {string} - the resource extension (e.g. ".jpeg", ".png"). You can also specify the extension within the assetName, let's suppose that your assetName is dog-picture you can simple pass dog-picture.jpeg within the assetName itself. This optional parameter is only here you to give you a more robust API and also the possibility to interpolate the prefix and postfix with the assetName as you can see in the url above URL structure <prefix><assetName><postfix><resourceExtension>.


Install the plugin

npm install babel-plugin-cloudinary

Add the plugin to your .babelrc

  "plugins": ["babel-plugin-cloudinary"]

Use it in your code

// gallery.js
function getImageUrl(imageName) {
  // compiles into "`${'<cloud_name>/image/upload/'}${imageName}${'.jpeg'}`;"
  return __buildCloudinaryUrl(imageName, {
    transforms: {
      width: 250,
      height: 250,
    resourceExtension: ".jpeg",

Additional configurations

This projects ships together with the plugin a types definition file (index.d.ts) that will be automatically recognized by IDEs and text editors with typescript based IntelliSense. In case you have some linting in place it might also be convenient to make __buildCloudinaryUrl a global. With eslint you can achieve this by adding a simple property to the globals block just like:

// .eslintrc.js
module.exports = {
  // ...
  globals: {
    // ...
    __buildCloudinaryUrl: true,
  // ...