Files
ownwire-go-sdk/example/cli/main.go

86 lines
1.8 KiB
Go

package main
import (
"bufio"
"context"
"flag"
"fmt"
"os"
"os/signal"
"syscall"
"time"
sdk "ownwire.net/ownwire-sdk"
)
func main() {
url := flag.String("url", "", "websocket url, e.g. ws://localhost:8080/ownwire")
resume_session_id := flag.String("resume", "", "resume session id (optional)")
flag.Parse()
if *url == "" {
fmt.Fprintln(os.Stderr, "missing -url")
os.Exit(2)
}
client := sdk.NewClient(sdk.ClientOptions{
Url: *url,
})
ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
defer cancel()
if err := client.Connect(ctx, *resume_session_id); err != nil {
fmt.Fprintf(os.Stderr, "connect failed: %v\n", err)
os.Exit(1)
}
fmt.Println("connected")
sig_ch := make(chan os.Signal, 1)
signal.Notify(sig_ch, syscall.SIGINT, syscall.SIGTERM)
go func() {
for ev := range client.Events() {
switch ev.Kind {
case sdk.EventOpened:
fmt.Println("[opened]")
case sdk.EventClosed:
fmt.Println("[closed]")
return
case sdk.EventError:
fmt.Fprintf(os.Stderr, "[error] %v\n", ev.Err)
case sdk.EventMessage:
if ev.Message.Metadata != "" {
fmt.Printf("[msg #%d] %s | %s\n", ev.Message.SeqNum, ev.Message.Metadata, ev.Message.Content)
} else {
fmt.Printf("[msg #%d] %s\n", ev.Message.SeqNum, ev.Message.Content)
}
}
}
}()
go func() {
<-sig_ch
client.Close()
os.Exit(0)
}()
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
line := scanner.Text()
send_ctx, send_cancel := context.WithTimeout(context.Background(), 5*time.Second)
err := client.Send(send_ctx, line, "")
send_cancel()
if err != nil {
fmt.Fprintf(os.Stderr, "send failed: %v\n", err)
}
}
if err := scanner.Err(); err != nil {
fmt.Fprintf(os.Stderr, "stdin error: %v\n", err)
}
client.Close()
}