Question

I couldn’t find articles match to my requirements.

Basically, what I want is that:

1. User uploads picture to the application from their local drive.
2. Application stores the picture uploaded to datastore.
3. Application retrieves images from datastore.

Any suggestions? Urgent.

Answer 1

You can do this in much the same way as you would in any other framework or platform: Create an HTML form with a ‘file’ input and the mimetype set to ‘multipart/form-data’. On the server side, extract the file data from the form field (using self.request.POST['fieldname'].value in webapp) and store the contents in a datastore model, in a db.BlobProperty field.