mirror of https://github.com/tidwall/tile38.git
73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
// Copyright 2012-2018 The NATS Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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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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"os"
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"runtime"
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"github.com/nats-io/go-nats"
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)
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// NOTE: Use tls scheme for TLS, e.g. nats-qsub -s tls://demo.nats.io:4443 foo
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func usage() {
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log.Fatalf("Usage: nats-qsub [-s server] [-t] <subject> <queue-group>\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] Queue[%s] Pid[%d]: '%s'\n", i, m.Subject, m.Sub.Queue, os.Getpid(), 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) < 2 {
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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, queue, i := args[0], args[1], 0
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nc.QueueSubscribe(subj, queue, func(msg *nats.Msg) {
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i++
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printMsg(msg, i)
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})
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nc.Flush()
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if err := nc.LastError(); err != nil {
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log.Fatal(err)
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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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