This is a Golang port of Zyre 2.0, an open-source framework for proximity-based peer-to-peer applications, implementing the same ZeroMQ Realtime Exchange Protocol.
Gyre does local area discovery and clustering. A Gyre node broadcasts UDP beacons, and connects to peers that it finds. This class wraps a Gyre node with a message-based API.
All incoming events are delivered via the recv call of a Gyre instance. The first frame defines the type of the message, and following frames provide further values:
ENTER fromnode headers ipaddress
a new peer has entered the network
EXIT fromnode
a peer has left the network
JOIN fromnode groupname
a peer has joined a specific group
LEAVE fromnode groupname
a peer has left a specific group
WHISPER fromnode message
a peer has sent this node a message
SHOUT fromnode groupname message
a peer has sent one of our groups a message
In SHOUT and WHISPER the message is a single frame in this version. In ENTER, the headers frame contains a packed dictionary.
To join or leave a group, use the Join and Leave methods. To set a header value, use the SetHeader method. To send a message to a single peer, use Whisper method. To send a message to a group, use Shout.
go get github.com/armen/gyre
View the API docs
Run following command in a terminal:
git clone https://github.com/armen/gyre
cd gyre
go run examples/chat/chat.go -name yourname
And repeat the last command in another terminal or all the commands in another computer. Happy chatting!