datastore-emulator-enforcer

Dead simple tool to make sure @google-cloud/datastore will target an emulator, so that tests/development won't pollute your production datastore.

To use it, simply require it before @google-cloud/datastore, e.g.

if (process.env.NODE_ENV !== 'production') {
  require('datastore-emulator-enforcer');
}

var myDatastore = require('@google-cloud/datastore')(/* init options */);

The enforcer throws an error if:

• @google-cloud-datastore was required before the enforcer (i.e. datastore might already be pointing to production)
• The emulator environment variables were not already present, and they could not be automatically determined & set.

If process.env does not already contain all emulator env vars, the enforcer will try to set them by running gcloud beta emulators datastore env-init. However, it won't override already-specified values.

• Auto-determining emulator env vars only works if you're running a local emulator. You need to have installed the Google Cloud SDK
• This functionality won't work if you're using the emulator on another host (, docker image, etc) – in that case, env vars must be specified ahead of time.

License

ISC