Go/WebSocket + Redis/PubSub

This application starts a WebSocket Server in Go, default port 8080 (and 8443). It will connect to the given Redis server and do PubSub things.

Building

go get github.com/gorilla/websocket
go get github.com/go-redis/redis
go get github.com/oklog/ulid
go build

Running the Server

Here what all the options look like, and shows their default values.

./gwsrps \
	--redis=127.0.0.1:6379:0 \
	--tcp-addr=8080 \
	--tls-addr=8433 \
	--tls-pem=server.pem \
	--tls-key=server.key \
	--path=/ \
	--origin='*'

• --redis=$HOST:$POST:$DATABASE_ID
• --tcp-addr=8080 -- the listen address for TCP/HTTP/WS connections
• --tls-addr=8443 -- the listen address for SSL/TLS/HTTPS/WSS connections
• --tls-pem and --tls-key are the certificate/chain PEM files and the key.
• --path=/ -- the websocket path
• --origin='*' -- the allowed origin glob-like pattern

Enable SSL/TLS

Please do this but use proper SSL Certificates. One can rename the files, just pass proper options

openssl genrsa -out server.key 2048
openssl req -new -x509 -sha256 -key server.key -out server.pem -days 3650

See Also

• https://github.com/gorilla/websocket

• https://github.com/oklog/ulid/

• https://github.com/go-redis/redis

• https://hackernoon.com/communicating-go-applications-through-redis-pub-sub-messaging-paradigm-df7317897b13