const redis = require("redis");

redisClient = redis.createClient(process.env.REDIS_PORT, process.env.REDIS_HOST);

redisClient.on("error", function(err) {
    console.log("Error " + err);
});

redisClient.set("string key", "string val", redis.print);
redisClient.hset("hash key", "hashtest 1", "some value", redis.print);
redisClient.hset(["hash key", "hashtest 2", "some other value"], redis.print);
redisClient.hkeys("hash key", function (err, replies) {
    console.log(replies.length + " replies:");
    replies.forEach(function (reply, i) {
        console.log("    " + i + ": " + reply);
    });
    redisClient.quit();
});