Retrieve a Blob by ID/Name from Google Blobstore -


storing images in blobstore working because of serving url doesn't require frontend instances.

servingurloptions options = servingurloptions.builder.withblobkey(blobkey); string url = imagesservice.getservingurl(options);

after uploading images throw away filenames (it auto generated). blobs in datastore console have kind __gsfileinfo__ , have fields follows:

key: agljbhv0dhj3zwjyy... write ops: 10 id/name: encoded_gs_key:l2dzl2nsdxr0ci81mdkxzmflmc1imgvhltqxnzctymu... content_type: application/octet-stream creation: fri may 08 15:13:26 cdt 2015 filename: /gs/bucket1234/5091fae0-b0ea-4177-be46-36cc7df5a36c

i noticed serving url same id/name - handle blob/image. there way get blob id/name?

if trying retrieve blob itd blobkey use:

 blobkey blobkey = new blobkey(req.getparameter("blob-key"));  blobstoreservice.serve(blobkey, res);

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