Firebase keepalive, supports #56

tools/fbsend/main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"context"
+	firebase "firebase.google.com/go"
+	"firebase.google.com/go/messaging"
+	"flag"
+	"fmt"
+	"google.golang.org/api/option"
+	"os"
+	"strings"
+)
+
+func main() {
+	conffile := flag.String("config", "/etc/fbsend/fbsend.json", "config file")
+	flag.Parse()
+	if flag.NArg() < 2 {
+		fail("Syntax: fbsend [-config FILE] topic key=value ...")
+	}
+	topic := flag.Arg(0)
+	data := make(map[string]string)
+	for i := 1; i < flag.NArg(); i++ {
+		kv := strings.SplitN(flag.Arg(i), "=", 2)
+		if len(kv) != 2 {
+			fail(fmt.Sprintf("Invalid argument: %s (%v)", flag.Arg(i), kv))
+		}
+		data[kv[0]] = kv[1]
+	}
+	fb, err := firebase.NewApp(context.Background(), nil, option.WithCredentialsFile(*conffile))
+	if err != nil {
+		fail(err.Error())
+	}
+	msg, err := fb.Messaging(context.Background())
+	if err != nil {
+		fail(err.Error())
+	}
+	_, err = msg.Send(context.Background(), &messaging.Message{
+		Topic: topic,
+		Data:  data,
+	})
+	if err != nil {
+		fail(err.Error())
+	}
+	fmt.Println("Sent successfully")
+}
+
+func fail(s string) {
+	fmt.Println(s)
+	os.Exit(1)
+}