How to update an already fetched asset?

You can update an asset that was previously fetched and then updated via the original remote URL  using one of the following methods:

1. Through the UI, you can delete the resource from the Media Library. This will automatically invalidate it on the CDN, and it will be re-fetched when accessed again.

2. Using the API, you can call the explicit method with the public ID (the remote asset URL in this case) and set the invalidate flag to true. For example, in Node.js:

   cloudinary.uploader.explicit("URL", { type: "fetch", invalidate: true }, function(result) {
           console.log(result)
   });

3. Using the API, you can also call the destroy method with the public ID (the remote asset URL in this case) and set the invalidate flag to true:

   cloudinary.v2.uploader.destroy("URL", { type: "fetch", invalidate: true }).then(callback);

Note that using the API, the CDN may take a few minutes to fully propagate the purge and display the updated asset.