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[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release) [![Greenkeeper badge](https://badges.greenkeeper.io/cdaringe/pg-subscribe.svg)](https://greenkeeper.io/)\n\n\n\nsubscribe to postgres events via [postgresql notify/listen](http://www.postgresql.org/docs/10/static/sql-notify.html)\n\nthis is a fork of [pg-pub-sub](https://github.com/voxpelli/node-pg-pubsub) to address some open issues, provide 1st class typescript support, and improve the api.\n\n## install\n\n```sh\nnpm install pg-subscribe --save\n```\n\n## usage\n\n### basic\n\n```js\nimport { PgSubscriber } from 'pg-subscribe'\nvar subscriber = new PgSubscriber('postgres://username@localhost/database')\nawait subscriber.addChannel('channelName', function onNotify (channelPayload) {\n  // Process the payload – if it was JSON that JSON has been parsed into an object for you\n})\nawait subscriber.publish('channelName', { hello: \"world\" })\n```\n\nthe above sends `NOTIFY channelName, '{\"hello\":\"world\"}'` to PostgreSQL, which will trigger the above listener with the parsed JSON in `channelPayload`.\n\n### advanced\n\n```js\nimport { PgSubscriber } from 'pg-subscribe'\nvar subscriber = new PgSubscriber('postgres://username@localhost/database')\nawait subscriber.addChannel('channelName')\n// subscriber is a full EventEmitter object that sends events on channel names\nsubscriber.once('channelName', function (channelPayload) {\n  // do great work!\n})\n```\n\n## api\n\na copy of the latest typings can always [be found 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