How Can I Upload An Thumbnail Image (blob) At The Same Time As An Entity Into A Datastore In Google App Engine?

I Just started using google app engine today, and I have fallen in love with endpoints. I made one very easily that will store an object in the datastore that just has a few strin

Solution 1:

Well you can use ImageService API in GAE to serve your images of different sizes and also you can apply various transformations on those images.

I am sharing you some code as well below so you will understand how I am serving the image urls using the stored blobkey.

String blobKeyString = blobKey.getKeyString();   // Returned value of blobkey when upload is done.
ImagesService services = ImagesServiceFactory.getImagesService();
ServingUrlOptions serve = ServingUrlOptions.Builder.withBlobKey(blobKey);
String imageUrl = services.getServingUrl(serve);