PubSub example
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_examples/xmpp_pubsub_client/xmpp_ps_client.go
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182
_examples/xmpp_pubsub_client/xmpp_ps_client.go
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package main
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import (
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"context"
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"encoding/xml"
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"fmt"
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"gosrc.io/xmpp"
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"gosrc.io/xmpp/stanza"
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"log"
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"time"
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)
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const (
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userJID = "testuser2@localhost"
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serverAddress = "localhost:5222"
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nodeName = "lel_node"
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serviceName = "pubsub.localhost"
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)
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func main() {
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config := xmpp.Config{
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TransportConfiguration: xmpp.TransportConfiguration{
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Address: serverAddress,
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},
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Jid: userJID,
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Credential: xmpp.Password("pass123"),
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// StreamLogger: os.Stdout,
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Insecure: true,
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}
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router := xmpp.NewRouter()
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router.NewRoute().Packet("message").
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HandlerFunc(func(s xmpp.Sender, p stanza.Packet) {
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data, _ := xml.Marshal(p)
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fmt.Println("Received a publication ! => \n" + string(data))
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})
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client, err := xmpp.NewClient(config, router, func(err error) { fmt.Println(err) })
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if err != nil {
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log.Fatalf("%+v", err)
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}
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// ==========================
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// Client connection
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err = client.Connect()
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if err != nil {
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log.Fatalf("%+v", err)
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}
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// ==========================
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// Create a node
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rqCreate, err := stanza.NewCreateNode(serviceName, nodeName)
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if err != nil {
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log.Fatalf("%+v", err)
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}
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ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
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createCh, err := client.SendIQ(ctx, rqCreate)
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if err != nil {
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log.Fatalf("%+v", err)
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} else {
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if createCh != nil {
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select {
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case respCr := <-createCh:
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// Got response from server
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if respCr.Error != nil {
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if respCr.Error.Reason != "conflict" {
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log.Fatalf("%+v", respCr.Error.Text)
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}
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fmt.Println(respCr.Error.Text)
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} else {
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fmt.Print("successfully created channel")
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}
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case <-time.After(100 * time.Millisecond):
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cancel()
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log.Fatal("No iq response was received in time")
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}
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}
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}
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// ====================================
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// Now let's subscribe to this node :
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rqSubscribe, _ := stanza.NewSubRq(serviceName, stanza.SubInfo{
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Node: nodeName,
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Jid: userJID,
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})
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if err != nil {
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log.Fatalf("%+v", err)
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}
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subRespCh, _ := client.SendIQ(ctx, rqSubscribe)
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if subRespCh != nil {
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select {
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case <-subRespCh:
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fmt.Println("Subscribed to the service")
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case <-time.After(100 * time.Millisecond):
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cancel()
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log.Fatal("No iq response was received in time")
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}
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}
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// ==========================
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// Publish to that node
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pub, err := stanza.NewPublishItemRq(serviceName, nodeName, "", stanza.Item{
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Publisher: "testuser2",
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Any: &stanza.Node{
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XMLName: xml.Name{
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Space: "http://www.w3.org/2005/Atom",
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Local: "entry",
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},
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Nodes: []stanza.Node{
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{
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XMLName: xml.Name{Space: "", Local: "title"},
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Attrs: nil,
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Content: "My pub item title",
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Nodes: nil,
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},
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{
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XMLName: xml.Name{Space: "", Local: "summary"},
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Attrs: nil,
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Content: "My pub item content summary",
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Nodes: nil,
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},
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{
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XMLName: xml.Name{Space: "", Local: "link"},
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Attrs: []xml.Attr{
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{
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Name: xml.Name{Space: "", Local: "rel"},
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Value: "alternate",
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},
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{
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Name: xml.Name{Space: "", Local: "type"},
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Value: "text/html",
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},
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{
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Name: xml.Name{Space: "", Local: "href"},
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Value: "http://denmark.lit/2003/12/13/atom03",
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},
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},
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},
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{
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XMLName: xml.Name{Space: "", Local: "id"},
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Attrs: nil,
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Content: "My pub item content ID",
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Nodes: nil,
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},
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{
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XMLName: xml.Name{Space: "", Local: "published"},
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Attrs: nil,
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Content: "2003-12-13T18:30:02Z",
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Nodes: nil,
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},
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{
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XMLName: xml.Name{Space: "", Local: "updated"},
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Attrs: nil,
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Content: "2003-12-13T18:30:02Z",
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Nodes: nil,
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},
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},
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},
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})
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if err != nil {
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log.Fatalf("%+v", err)
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}
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pubRespCh, _ := client.SendIQ(ctx, pub)
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if pubRespCh != nil {
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select {
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case <-pubRespCh:
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fmt.Println("Published item to the service")
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case <-time.After(100 * time.Millisecond):
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cancel()
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log.Fatal("No iq response was received in time")
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}
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}
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// =============================
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// Let's purge the node now :
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purgeRq, _ := stanza.NewPurgeAllItems(serviceName, nodeName)
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client.SendIQ(ctx, purgeRq)
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cancel()
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}
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