ceremonyclient/go-libp2p/examples/ipfs-camp-2019/05-Discovery/main.go

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2023-08-21 03:50:38 +00:00
package main
import (
"context"
"fmt"
"os"
"os/signal"
"syscall"
"github.com/libp2p/go-libp2p"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/p2p/muxer/yamux"
tls "github.com/libp2p/go-libp2p/p2p/security/tls"
"github.com/libp2p/go-libp2p/p2p/transport/tcp"
"github.com/libp2p/go-libp2p/p2p/transport/websocket"
"github.com/multiformats/go-multiaddr"
)
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
transports := libp2p.ChainOptions(
libp2p.Transport(tcp.NewTCPTransport),
libp2p.Transport(websocket.New),
)
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muxers := libp2p.Muxer("/yamux/1.0.0", yamux.DefaultTransport)
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security := libp2p.Security(tls.ID, tls.New)
listenAddrs := libp2p.ListenAddrStrings(
"/ip4/0.0.0.0/tcp/0",
"/ip4/0.0.0.0/tcp/0/ws",
)
// TODO: Configure libp2p to use a DHT with a libp2p.Routing option
host, err := libp2p.New(
transports,
listenAddrs,
muxers,
security,
)
if err != nil {
panic(err)
}
host.SetStreamHandler(chatProtocol, chatHandler)
for _, addr := range host.Addrs() {
fmt.Println("Listening on", addr)
}
targetAddr, err := multiaddr.NewMultiaddr("/ip4/127.0.0.1/tcp/63785/p2p/QmWjz6xb8v9K4KnYEwP5Yk75k5mMBCehzWFLCvvQpYxF3d")
if err != nil {
panic(err)
}
targetInfo, err := peer.AddrInfoFromP2pAddr(targetAddr)
if err != nil {
panic(err)
}
err = host.Connect(ctx, *targetInfo)
if err != nil {
panic(err)
}
fmt.Println("Connected to", targetInfo.ID)
donec := make(chan struct{}, 1)
go chatInputLoop(ctx, host, donec)
stop := make(chan os.Signal, 1)
signal.Notify(stop, syscall.SIGINT)
select {
case <-stop:
host.Close()
os.Exit(0)
case <-donec:
host.Close()
}
}