How to delete all datastore in Google App Engine?

Question

Does anyone know how to delete all datastore in Google App Engine?

Answer 1

For the development server, instead of running the server through the google app engine launcher, you can run it from the terminal like:

dev_appserver.py --port=[portnumber] --clear_datastore=yes [nameofapplication]

ex: my application "reader" runs on port 15080. After modify the code and restart the server, I just run "dev_appserver.py --port=15080 --clear_datastore=yes reader".

It's good for me.