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a7b34f1601
* Vendor nats-io/nats * Use NATS for shortcut reports. * Review feedback. * Rejig shortcut subscriptions, so they work. * Review feedback
55 lines
1003 B
Go
55 lines
1003 B
Go
// Copyright 2012-2016 Apcera Inc. All rights reserved.
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// +build ignore
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package main
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import (
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"flag"
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"log"
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"runtime"
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"github.com/nats-io/nats"
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)
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// NOTE: Use tls scheme for TLS, e.g. nats-sub -s tls://demo.nats.io:4443 foo
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func usage() {
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log.Fatalf("Usage: nats-sub [-s server] [-t] <subject> \n")
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}
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func printMsg(m *nats.Msg, i int) {
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log.Printf("[#%d] Received on [%s]: '%s'\n", i, m.Subject, string(m.Data))
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}
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func main() {
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var urls = flag.String("s", nats.DefaultURL, "The nats server URLs (separated by comma)")
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var showTime = flag.Bool("t", false, "Display timestamps")
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log.SetFlags(0)
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flag.Usage = usage
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flag.Parse()
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args := flag.Args()
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if len(args) < 1 {
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usage()
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}
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nc, err := nats.Connect(*urls)
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if err != nil {
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log.Fatalf("Can't connect: %v\n", err)
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}
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subj, i := args[0], 0
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nc.Subscribe(subj, func(msg *nats.Msg) {
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i += 1
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printMsg(msg, i)
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})
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log.Printf("Listening on [%s]\n", subj)
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if *showTime {
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log.SetFlags(log.LstdFlags)
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}
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runtime.Goexit()
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}
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