metamaps--metamaps/realtime/node_modules/redis/examples/psubscribe.js

33 lines
1 KiB
JavaScript

var redis = require("redis"),
client1 = redis.createClient(),
client2 = redis.createClient(),
client3 = redis.createClient(),
client4 = redis.createClient(),
msg_count = 0;
redis.debug_mode = false;
client1.on("psubscribe", function (pattern, count) {
console.log("client1 psubscribed to " + pattern + ", " + count + " total subscriptions");
client2.publish("channeltwo", "Me!");
client3.publish("channelthree", "Me too!");
client4.publish("channelfour", "And me too!");
});
client1.on("punsubscribe", function (pattern, count) {
console.log("client1 punsubscribed from " + pattern + ", " + count + " total subscriptions");
client4.end();
client3.end();
client2.end();
client1.end();
});
client1.on("pmessage", function (pattern, channel, message) {
console.log("("+ pattern +")" + " client1 received message on " + channel + ": " + message);
msg_count += 1;
if (msg_count === 3) {
client1.punsubscribe();
}
});
client1.psubscribe("channel*");