Prevent Google App Engine local development server from losing DataStore contents after restarts

8-Jun-2017

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By default the local development server doesn't specify a storage path for the simulated Cloud DataStore. This means that after your computer restarts the DataStore data gets lost, it's probably stored in a temporary directory somewhere. There is a setting that can be used to make sure that the data is preserved.

Simply set the --storage_path parameter when you run the dev_appserver.py script. I set mine to a subdirectory, 'gae', from my home directory, but any directory that is not a temporary directory will work. This is what the start command looks like in my case:

Dev Server Command

dev_appserver.py --port=8080 --log_level=debug --dev_appserver_log_level=info --storage_path=~/gae app.yaml

That's all there is to it!

-i

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