Automatically Convert Images
This sample demonstrates how to automatically convert images that are uploaded to Firebase Storage to JPEG using ImageMagick.
See file
functions/index.js
for the image conversion code.
The image conversion is performed using ImagMagick which is installed by default on all Cloud Functions instances. This is a CLI so we execute the command from node using the
child-process-promise
package. The image is first downloaded locally from the Firebase Storage bucket to the
tmp
folder using the
google-cloud
SDK.
The dependencies are listed in
functions/package.json
.
The function triggers on upload of any file to your Firebase project's default Cloud Storage bucket.
To deploy and test the sample:
- Create a Firebase project on the
Firebase Console
and visit the
Storage
tab.
- Deploy your project using
firebase deploy
- Go to the Firebase Console
Storage
tab and upload an image that is not a JPEG, for instance a PNG. After a short time an image with the same base name but the
.jpg
extension will be created in the same folder (make sure you refresh the UI to see the new file).
