lukechilds
/
functions-samples
mirror of https://github.com/lukechilds/functions-samples.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 Commits
7 Branches
0 Tags
673 KiB
 
 
 
 
 
 
Branch: ll-addtest
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'll-addtest'
${ noResults }
functions-samples/generate-thumbnail
Nicolas Garnier 7e653e3d8a
Forgot to move to 0.5.0 one sample 		8 years ago
..
functions Forgot to move to 0.5.0 one sample 8 years ago
README.md Updating "Firebase" Functions and Storage naming following the rebranding to "Cloud". 8 years ago
firebase.json Adding the generate thumbnail sample. 8 years ago

README.md

Automatically Generate Thumbnails

This sample demonstrates how to automatically generate thumbnails for each images that are uploaded to Firebase Storage.

Functions Code

See file functions/index.js for the thumbnail generation code.

The thumbnail generation 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.

Trigger rules

The function triggers on upload of any file to your Firebase project's default Cloud Storage bucket.

Deploy and test

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. After a short time an thumbnail image with the same name but a thumb_ prefix will be created in the same folder (make sure you refresh the UI to see the new file).