socket.io-store

Redis-backed store functionality, like socket.io pre-v1.x

Usage

Create a middleware to add store functions .get(), .set(), .has(), .del() functions to each socket instance.

var io = require("socket.io")();
var SocketStore = require("socket.io-store");
var redis = require("redis");
var redisClient = redis.createClient();
 
SocketStore.initialize({ redisClient: redisClient });
 
io.use(SocketStore.middleware());
 
io.on("connection", function (socket) {
 
    socket.on("message", function (from, message) {
        var data = JSON.stringify({
            from: from,
            message: message
        });
        socket.set("lastMessage", data, function (err) {
            if (err) {
                socket.emit("error", err);
            }
        });
    });
 
    socket.on("history", function () {
        socket.get("lastMessage", function (err, data) {
            if (err) {
                socket.emit("error", err);
            }
            else if (data) {
                var message = JSON.parse(data);
                var response = "I last received a message by " + message.from + " saying " + message.message ".";
                socket.emit("history message", response);
                socket.del("lastMessage");
            }
            else {
                socket.emit("history message", "I got nothin'.");
            }
        });
    });
});
 

API

Generated docs

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