compress-image

Compress .png Images

A Ruby Cloud Function that compresses png images.

image and provider are recieved from the payload, where image is a base64 encoded string and provider is either tinypng or krakenio

Example input:

{
    "image": "iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAf0lEQVR4nO2Wuw2AMAxEbw1gpMwDDMBcGQpooDKydGVAoXCK6J7k6qyc83MCCFGP/Yz+CkDF4KHmjgowbQF0CKFrCDUiwztqxabHCL0/xwcNhoI2UdsjC8g0mQvaSs1zwkg0uQAsAEaGm9/UPCeU7eMj6loTEpf6ZOQWMxd98gAhZnS6XEZcNQAAAABJRU5ErkJggg==",
    "provider": "tinypng", 
}

krakenio is also a supported provider

Example output:

{
    "success": true,
    "image": "iVBORw0KGgoAAAANSUhEUgAAACAAAAAgBAMAAACBVGfHAAAAG1BMVEUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACUUeIgAAAACHRSTlMA8712Sxr5g97cFtUAAAA9SURBVCjPY6Aa6AADfAIcDSA8KoBTgLGVgSFCAEmAqZmBwUIBSYClzTQ4wwE52Cs6OtpR4oFFUciBerEKAP58HnyLtZsYAAAAAElFTkSuQmCC"
}

📝 Variables

only selected provider's api keys are neccessary, ie. kraken's api keys are not neccessary when choosing tinypng as the provider.

• TINYPNG_API - API key for tinypng service
• KRAKENIO_KEY - API key for kraken-io service
• KRAKENIO_SECRET - API Secret for kraken-io service

🚀 Deployment

1. Clone this repository, and enter this function folder:

$ git clone https://github.com/open-runtimes/examples.git && cd examples
$ cd ruby/compress-image

2. Enter this function folder and build the code:

docker run --rm --interactive --tty --volume $PWD:/usr/code openruntimes/ruby:v2-3.1 sh /usr/local/src/build.sh

As a result, a code.tar.gz file will be generated. 3. Start the Open Runtime:

docker run -p 3000:3000 -e INTERNAL_RUNTIME_KEY=secret-key -e INTERNAL_RUNTIME_ENTRYPOINT=index.rb --rm --interactive --tty --volume $PWD/code.tar.gz:/tmp/code.tar.gz:ro openruntimes/ruby:v2-3.1 sh /usr/local/src/start.sh

4. Execute function:

curl http://localhost:3000/ -d '{"variables":{"TINYPNG_API":"[YOUR_API_KEY]"},"payload":"{\"provider\":\"tinypng\",\"image\":\"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAf0lEQVR4nO2Wuw2AMAxEbw1gpMwDDMBcGQpooDKydGVAoXCK6J7k6qyc83MCCFGP/Yz+CkDF4KHmjgowbQF0CKFrCDUiwztqxabHCL0/xwcNhoI2UdsjC8g0mQvaSs1zwkg0uQAsAEaGm9/UPCeU7eMj6loTEpf6ZOQWMxd98gAhZnS6XEZcNQAAAABJRU5ErkJggg==\"}"}' -H "X-Internal-Challenge: secret-key" -H "Content-Type: application/json"

Your function is now listening on port 3000, and you can execute it by sending POST request with appropriate authorization headers. To learn more about runtime, you can visit Python runtime README.

📝 Notes

• This function is designed for use with Appwrite Cloud Functions. You can learn more about it in Appwrite docs.
• This example is compatible with Ruby 3.1. Other versions may work but are not guaranteed to work as they haven't been tested.