Files
NixMsg/sdk/go/example/minimal/main.go
T

54 lines
1.2 KiB
Go

package main
import (
"context"
"fmt"
"os"
"time"
nixmsg "git.asio.asia/nixevol/NixMsg/sdk/go"
)
func main() {
url := env("NIXMSG_URL", "ws://127.0.0.1:7443/mqtt")
id := env("NIXMSG_ID", "device-1")
pass := env("NIXMSG_PASSWORD", "secret")
peer := env("NIXMSG_PEER", "device-2")
c := nixmsg.New()
c.OnSession(func(tok string) {
fmt.Println("session", tok)
})
c.OnMessage(func(msg nixmsg.Message) error {
fmt.Println("msg", msg.From, msg.Body.Data)
return nil
})
c.OnConnection(func(ev nixmsg.ConnectionEvent) {
fmt.Println("conn", ev.State, ev.Reason)
})
ctx := context.Background()
if err := c.Connect(ctx, url, id, nixmsg.Credential{Password: pass}, nixmsg.Options{}); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
defer c.Close()
delay := time.Duration(0)
res, err := c.Send(ctx, nixmsg.Target{Kind: "endpoint", ID: peer},
nixmsg.Body{Enc: "utf8", Data: "hello from go sdk"}, nixmsg.SendOptions{Delay: &delay})
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
fmt.Println("sent", res.ID, res.State)
time.Sleep(2 * time.Second)
}
func env(k, def string) string {
if v := os.Getenv(k); v != "" {
return v
}
return def
}