Resize images while uploading to Amazon S3 bucket

Question

I am Developing an API in PHP and I have to upload images with resize. How can I resize images while uploading to an Amazon S3 bucket?

I have to upload the maximum dimensions of 1920*1080 images

Answer 1

The 'AWS way' would be to create an s3 event notification for the bucket you are uploading images to, and then have an Lambda function get called each time a new file is put into the bucket - the lambda function would do the resizing and either save the new image to a different location or a different name.

All your PHP app needs to do is 'put' the object in the bucket, and let lambda do the rest - quite certain there are lots of examples around the internet to do this exact thing.

Answer 2

You have to resize the images locally with PHP first before uploading them to S3. You can use an already available PHP library for resizing, for example php-image-resize .

Answer 3

I would recommend using image optimization services like Cloudinary which can directly connect to AWS bucket. But this is available in Paid plans only as explained in https://support.cloudinary.com/hc/en-us/articles/202520492-Can-images-be-stored-in-my-own-S3-bucket-

Another way can be to host clone of Imgur; another image optimization service on your own S3. Process explained here: https://hackernoon.com/building-a-highly-scalable-imgur-clone-with-lambda-and-s3-aaf9da422c3e