forked from orus-io/nats-websocket-gw
/
main.go
65 lines (53 loc) · 1.6 KB
/
main.go
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package main
import (
"fmt"
"net/http"
"os"
"github.com/gorilla/websocket"
gw "github.com/orus-io/nats-websocket-gw"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var rootCmd = cobra.Command{
Run: rootCmdRun,
}
func init() {
flags := rootCmd.Flags()
flags.Int("port", 8910, "Port to run http server on")
flags.String("host", "localhost", "host/IP to run http server on")
flags.String("path", "/nats", "webpath of the websocket")
flags.String("nats", "localhost:4222", "nats server address:port")
flags.Bool("no-origin-check", false, "Disable websocket origin check")
flags.Bool("trace", false, "Enable trace logs")
viper.BindPFlag("port", flags.Lookup("port"))
viper.BindPFlag("host", flags.Lookup("host"))
viper.BindPFlag("path", flags.Lookup("path"))
viper.BindPFlag("nats", flags.Lookup("nats"))
viper.BindPFlag("no-origin-check", flags.Lookup("no-origin-check"))
viper.BindPFlag("trace", flags.Lookup("trace"))
}
func rootCmdRun(cmd *cobra.Command, args []string) {
settings := gw.Settings{
NatsAddr: viper.GetString("nats"),
}
if viper.GetBool("no-origin-check") {
settings.WSUpgrader = &websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
CheckOrigin: func(r *http.Request) bool { return true },
}
}
if viper.GetBool("trace") {
settings.Trace = true
}
listenOn := viper.GetString("host") + ":" + viper.GetString("port")
gateway := gw.NewGateway(settings)
http.HandleFunc(viper.GetString("path"), gateway.Handler)
http.ListenAndServe(listenOn, nil)
}
func main() {
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}