A simple library that helps you manage and send subscriptions and unsubscriptions for web push notifications services using leveldb.
How to use
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export GCM_API_KEY=YOURKEY
var wsub = require( 'web-push-subscriber' );
wsub.subscribe( 'firefox', 'feature', 'token_a' );
wsub.subscribe( 'google', 'feature', 'token_b' );
wsub.ping( 'google', ['token_b'], 'feature' )
wsub.broadcast( 'feature' ) ~~~~