susanlulu/node-exercise

Node Exercise from CodeSchool

Part1 Pub/sub

发布/订阅(publish/subcribe)是一种消息通信模式：发送者(pub)发送消息，订阅者(sub)接收消息。

Redis 客户端(client)可以订阅(sub)任意数量的频道(channel).

例如: 当有新消息通过 PUBLISH 命令发送给频道 channel1 时， 这个消息就会被发送给订阅它的三个客户端—— client2 、 client5 和 client1 .

Need these modules & their role :

• express : Middleware
• Redis : No-SQL Database
• Underscore

Part2

Need these modules & their role :

• socket
• axon

Reference:

1. WatchUsBuild-ImageStreamingAppWithNodePubSubServer
2. watchUsBuild-imageStreamingAppWithNodeWebServer