Redis PubSub client for Node
This library is now mainly maintained by @rangermauve and @narcisoguillen
Simple pubsub for node using Redis. Why use NRP instead of Node's EventEmitter? It is useful when your Node application needs to share data with other applications. In that case EventEmitter will not help you, you need an external pubsub provider. Redis is pretty good at this, but its pubsub API is strange. So you use this wrapper.
$ npm install node-redis-pubsub # Install locally$ npm install -g node-redis-pubsub # Install globally$$ make test # test (devDependencies need to be installed and a Redis server up)
for a trusted environment where Redis runs locally, unprotected on a port blocked by firewall.
var NRP = require'node-redis-pubsub';var config =port : 6379 // Port of your locally running Redis serverscope : 'demo' // Use a scope to prevent two NRPs from sharing messages;var nrp = config; // This is the NRP client
for a remote Redis server
var NRP = require'node-redis-pubsub';var config =port: 1234 // Port of your remote Redis serverhost: 'path.to.remote.redis.host' // Redis server host, defaults to 127.0.0.1auth: 'password' // Passwordscope: 'demo' // Use a scope to prevent two NRPs from sharing messages;var nrp = config; // This is the NRP client
nrpon'say hello'console.log'Hello ' + dataname;;nrpemit'say hello' name: 'Louis' ; // Outputs 'Hello Louis'// You can use patterns to capture all messages of a certain type// The matched channel is given as a second parameter to the callbacknrpon'city:*' data channel =>console.logdatacity + ' is great';;nrpemit'city:hello' city: 'Paris' ; // Outputs 'Paris is great'nrpemit'city:yeah' city: 'San Francisco' ; // Outputs 'San Francisco is great'
nrpon'say hello'// Never called;nrpoff'say hello' Callback;
// Safely (connections will be closed properly once all commands are sent)nrpquit;// Dangerously (connections will be immediately terminated)nrpend;
(The MIT License)
Copyright (c) 2012 tldr.io <email@example.com>
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