mirror of
https://github.com/pion/webrtc.git
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0e7086d37a
Let's pull off the bandaid! * Reduces studdering: webrtc.RTCTrack -> webrtc.Track * Makes it easier to find types by editor autocomplete * Makes code read more fluently (less repetition) Since we're breaking the API in 2.0, our only chance to do this is now. Relates to #408
107 lines
2.9 KiB
Go
107 lines
2.9 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"time"
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"github.com/pions/webrtc"
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"github.com/pions/webrtc/examples/util"
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"github.com/pions/webrtc/pkg/datachannel"
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"github.com/pions/webrtc/pkg/ice"
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)
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func main() {
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closeAfter := flag.Int("close-after", 5, "Close data channel after sending X times.")
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flag.Parse()
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// Everything below is the pion-WebRTC API! Thanks for using it ❤️.
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// Prepare the configuration
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config := webrtc.Configuration{
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ICEServers: []webrtc.ICEServer{
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{
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URLs: []string{"stun:stun.l.google.com:19302"},
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},
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},
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}
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// Create a new RTCPeerConnection
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peerConnection, err := webrtc.NewPeerConnection(config)
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util.Check(err)
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// Set the handler for ICE connection state
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// This will notify you when the peer has connected/disconnected
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peerConnection.OnICEConnectionStateChange(func(connectionState ice.ConnectionState) {
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fmt.Printf("ICE Connection State has changed: %s\n", connectionState.String())
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})
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// Register data channel creation handling
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peerConnection.OnDataChannel(func(d *webrtc.DataChannel) {
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fmt.Printf("New DataChannel %s %d\n", d.Label, d.ID)
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// Register channel opening handling
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d.OnOpen(func() {
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fmt.Printf("Data channel '%s'-'%d' open. Random messages will now be sent to any connected DataChannels every 5 seconds\n", d.Label, d.ID)
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ticker := time.NewTicker(5 * time.Second)
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d.OnClose(func() {
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fmt.Printf("Data channel '%s'-'%d' closed.\n", d.Label, d.ID)
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ticker.Stop()
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})
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cnt := *closeAfter
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for range ticker.C {
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message := util.RandSeq(15)
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fmt.Printf("Sending %s \n", message)
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err := d.Send(datachannel.PayloadString{Data: []byte(message)})
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util.Check(err)
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cnt--
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if cnt < 0 {
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fmt.Printf("Sent %d times. Closing data channel '%s'-'%d'.\n", *closeAfter, d.Label, d.ID)
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ticker.Stop()
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err = d.Close()
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util.Check(err)
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}
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}
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})
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// Register message handling
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d.OnMessage(func(payload datachannel.Payload) {
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switch p := payload.(type) {
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case *datachannel.PayloadString:
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fmt.Printf("Message '%s' from DataChannel '%s' payload '%s'\n", p.PayloadType().String(), d.Label, string(p.Data))
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case *datachannel.PayloadBinary:
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fmt.Printf("Message '%s' from DataChannel '%s' payload '% 02x'\n", p.PayloadType().String(), d.Label, p.Data)
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default:
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fmt.Printf("Message '%s' from DataChannel '%s' no payload \n", p.PayloadType().String(), d.Label)
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}
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})
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})
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// Wait for the offer to be pasted
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offer := webrtc.SessionDescription{}
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util.Decode(util.MustReadStdin(), &offer)
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// Set the remote SessionDescription
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err = peerConnection.SetRemoteDescription(offer)
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util.Check(err)
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// Create answer
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answer, err := peerConnection.CreateAnswer(nil)
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util.Check(err)
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// Sets the LocalDescription, and starts our UDP listeners
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err = peerConnection.SetLocalDescription(answer)
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util.Check(err)
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// Output the answer in base64 so we can paste it in browser
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fmt.Println(util.Encode(answer))
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// Block forever
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select {}
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}
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