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Update chat with rendezvous example #2769

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merged 2 commits into from
Apr 15, 2024
Merged

Update chat with rendezvous example #2769

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7efa7d9
Update chat with rendezvous example
MarcoPolo Apr 15, 2024
8f999f0
Merge branch 'master' into marco/update-chat-with-rendezvous
MarcoPolo Apr 15, 2024
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27 changes: 9 additions & 18 deletions examples/chat-with-rendezvous/chat.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ import (
"flag"
"fmt"
"os"
"sync"
"time"

"github.com/libp2p/go-libp2p"
"github.com/libp2p/go-libp2p/core/network"
Expand Down Expand Up @@ -114,7 +114,12 @@ func main() {
// DHT, so that the bootstrapping node of the DHT can go down without
// inhibiting future peer discovery.
ctx := context.Background()
kademliaDHT, err := dht.New(ctx, host)
bootstrapPeers := make([]peer.AddrInfo, len(config.BootstrapPeers))
for i, addr := range config.BootstrapPeers {
peerinfo, _ := peer.AddrInfoFromP2pAddr(addr)
bootstrapPeers[i] = *peerinfo
}
kademliaDHT, err := dht.New(ctx, host, dht.BootstrapPeers(bootstrapPeers...))
if err != nil {
panic(err)
}
Expand All @@ -126,22 +131,8 @@ func main() {
panic(err)
}

// Let's connect to the bootstrap nodes first. They will tell us about the
// other nodes in the network.
var wg sync.WaitGroup
for _, peerAddr := range config.BootstrapPeers {
peerinfo, _ := peer.AddrInfoFromP2pAddr(peerAddr)
wg.Add(1)
go func() {
defer wg.Done()
if err := host.Connect(ctx, *peerinfo); err != nil {
logger.Warning(err)
} else {
logger.Info("Connection established with bootstrap node:", *peerinfo)
}
}()
}
wg.Wait()
// Wait a bit to let bootstrapping finish (really bootstrap should block until it's ready, but that isn't the case yet.)
time.Sleep(1 * time.Second)

// We use a rendezvous point "meet me here" to announce our location.
// This is like telling your friends to meet you at the Eiffel Tower.
Expand Down
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