blox

server := startMockServer("127.0.0.1:4000")
defer func() {
	// Shutdown the server after test
	if err := server.Shutdown(context.Background()); err != nil {
		panic(err) // Handle the error as you see fit
	}
}()

const poolName = "1"
ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
//ctx = network.WithUseTransient(ctx, "fx.exchange")
defer cancel()

// Elevate log level to show internal communications.
if err := logging.SetLogLevel("*", "info"); err != nil {
	panic(err)
}

// Use a deterministic random generator to generate deterministic
// output for the example.
rng := rand.New(rand.NewSource(42))
cfg := NewConfig()

// ListenAddr configure
ListenAddrsConfig1 := []string{"/ip4/0.0.0.0/tcp/40001", "/ip4/0.0.0.0/udp/40001/quic"}
listenAddrs1 := make([]multiaddr.Multiaddr, 0, len(ListenAddrsConfig1)+1)
// Convert string addresses to multiaddr and append to listenAddrs
for _, addrString := range ListenAddrsConfig1 {
	addr, err := multiaddr.NewMultiaddr(addrString)
	if err != nil {
		panic(fmt.Errorf("invalid multiaddress: %w", err))
	}
	listenAddrs1 = append(listenAddrs1, addr)
}
// Add the relay multiaddress
relayAddr2, err := multiaddr.NewMultiaddr("/p2p-circuit")
if err != nil {
	panic(fmt.Errorf("error creating relay multiaddress: %w", err))
}
listenAddrs1 = append(listenAddrs1, relayAddr2)
///
ListenAddrsConfig2 := []string{"/ip4/0.0.0.0/tcp/40002", "/ip4/0.0.0.0/udp/40002/quic"}
listenAddrs2 := make([]multiaddr.Multiaddr, 0, len(ListenAddrsConfig2)+1)
// Convert string addresses to multiaddr and append to listenAddrs
for _, addrString := range ListenAddrsConfig2 {
	addr, err := multiaddr.NewMultiaddr(addrString)
	if err != nil {
		panic(fmt.Errorf("invalid multiaddress: %w", err))
	}
	listenAddrs2 = append(listenAddrs2, addr)
}
// Add the relay multiaddress
listenAddrs2 = append(listenAddrs2, relayAddr2)
///
ListenAddrsConfig3 := []string{"/ip4/0.0.0.0/tcp/40003", "/ip4/0.0.0.0/udp/40003/quic"}
listenAddrs3 := make([]multiaddr.Multiaddr, 0, len(ListenAddrsConfig3)+1)
// Convert string addresses to multiaddr and append to listenAddrs
for _, addrString := range ListenAddrsConfig3 {
	addr, err := multiaddr.NewMultiaddr(addrString)
	if err != nil {
		panic(fmt.Errorf("invalid multiaddress: %w", err))
	}
	listenAddrs3 = append(listenAddrs3, addr)
}
// Add the relay multiaddress
listenAddrs3 = append(listenAddrs3, relayAddr2)
///
ListenAddrsConfig4 := []string{"/ip4/0.0.0.0/tcp/40004", "/ip4/0.0.0.0/udp/40004/quic"}
listenAddrs4 := make([]multiaddr.Multiaddr, 0, len(ListenAddrsConfig4)+1)
// Convert string addresses to multiaddr and append to listenAddrs
for _, addrString := range ListenAddrsConfig4 {
	addr, err := multiaddr.NewMultiaddr(addrString)
	if err != nil {
		panic(fmt.Errorf("invalid multiaddress: %w", err))
	}
	listenAddrs4 = append(listenAddrs4, addr)
}
// Add the relay multiaddress
listenAddrs4 = append(listenAddrs4, relayAddr2)

//End of ListenAddr configure
hopts := []libp2p.Option{
	//libp2p.ListenAddrs(listenAddrs...),
	libp2p.EnableNATService(),
	libp2p.NATPortMap(),
	libp2p.EnableRelay(),
	libp2p.EnableHolePunching(),
}
sr := make([]peer.AddrInfo, 0, len(cfg.StaticRelays))
for _, relay := range cfg.StaticRelays {
	rma, err := multiaddr.NewMultiaddr(relay)
	if err != nil {
		fmt.Println(err)
	}
	rai, err := peer.AddrInfoFromP2pAddr(rma)
	if err != nil {
		fmt.Println(err)
	}
	sr = append(sr, *rai)
}
libp2p.EnableAutoRelayWithStaticRelays(sr, autorelay.WithNumRelays(1))
hopts = append(hopts, libp2p.ForceReachabilityPrivate())

// Instantiate the first node in the pool
pid1, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
hopts1 := append(hopts, libp2p.Identity(pid1))
hopts1 = append(hopts1, libp2p.ListenAddrs(listenAddrs1...))
h1, err := libp2p.New(hopts1...)
if err != nil {
	panic(err)
}

n1, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h1),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{devRelay}),
	blox.WithPingCount(5),
	blox.WithMaxPingTime(100),
	blox.WithMinSuccessPingRate(80),
)
if err != nil {
	panic(err)
}
if err := n1.Start(ctx); err != nil {
	panic(err)
}
defer n1.Shutdown(ctx)
log.Debugf("n1 Instantiated node in pool %s with ID: %s\n", poolName, h1.ID().String())

// Instantiate the second node in the pool
pid2, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
hopts2 := append(hopts, libp2p.Identity(pid2))
hopts2 = append(hopts2, libp2p.ListenAddrs(listenAddrs2...))
h2, err := libp2p.New(hopts2...)
if err != nil {
	panic(err)
}

n2, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h2),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{devRelay}),
	blox.WithPingCount(5),
	blox.WithMaxPingTime(100),
	blox.WithMinSuccessPingRate(80),
)
if err != nil {
	panic(err)
}
if err := n2.Start(ctx); err != nil {
	panic(err)
}
defer n2.Shutdown(ctx)
log.Debugf("n2 Instantiated node in pool %s with ID: %s\n", poolName, h2.ID().String())

// Instantiate the third node in the pool
pid3, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
hopts3 := append(hopts, libp2p.Identity(pid3))
hopts3 = append(hopts3, libp2p.ListenAddrs(listenAddrs3...))
h3, err := libp2p.New(hopts3...)
if err != nil {
	panic(err)
}

n3, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h3),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{devRelay}),
	blox.WithPingCount(5),
	blox.WithMaxPingTime(100),
	blox.WithMinSuccessPingRate(80),
)
if err != nil {
	panic(err)
}
if err := n3.Start(ctx); err != nil {
	panic(err)
}
defer n3.Shutdown(ctx)
log.Debugf("n3 Instantiated node in pool %s with ID: %s\n", poolName, h3.ID().String())

if err = h1.Connect(ctx, peer.AddrInfo{ID: h2.ID(), Addrs: h2.Addrs()}); err != nil {
	panic(err)
}
if err = h1.Connect(ctx, peer.AddrInfo{ID: h3.ID(), Addrs: h3.Addrs()}); err != nil {
	panic(err)
}

// Wait until the nodes discover each other
for {
	if len(h1.Peerstore().Peers()) >= 3 &&
		len(h2.Peerstore().Peers()) >= 3 &&
		len(h3.Peerstore().Peers()) >= 3 {
		break
	} else {
		h1Peers := h1.Peerstore().Peers()
		log.Debugf("n1 Only %s peerstore contains %d nodes:\n", h1.ID(), len(h1Peers))
	}
	select {
	case <-ctx.Done():
		panic(ctx.Err())
	default:
		time.Sleep(time.Second)
	}
}

h1Peers := h1.Peerstore().Peers()
log.Debugf("n1 Finally %s peerstore contains %d nodes:\n", h1.ID(), len(h1Peers))
for _, id := range h1Peers {
	log.Debugf("- %s\n", id)
}

h2Peers := h2.Peerstore().Peers()
log.Debugf("n2 Finally %s peerstore contains %d nodes:\n", h2.ID(), len(h2Peers))
for _, id := range h2Peers {
	log.Debugf("- %s\n", id)
}

h3Peers := h3.Peerstore().Peers()
log.Debugf("n3 Finally %s peerstore contains %d nodes:\n", h3.ID(), len(h3Peers))
for _, id := range h3Peers {
	log.Debugf("- %s\n", id)
}

// Instantiate the fourth node not in the pool
log.Debug("Now creating pid of n4")
pid4, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	log.Errorw("An error happened in creating keypair of n4", "Err", err)
	panic(err)
}
log.Debug("Now creating host of n4")
hopts4 := append(hopts, libp2p.Identity(pid4))
hopts4 = append(hopts4, libp2p.ListenAddrs(listenAddrs4...))
h4, err := libp2p.New(hopts4...)
if err != nil {
	log.Errorw("An error happened in creating libp2p  instance of n4", "Err", err)
	panic(err)
}
log.Debug("Now creating blox for n4")
n4, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h4),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{devRelay}),
	blox.WithPingCount(5),
	blox.WithMaxPingTime(100),
	blox.WithMinSuccessPingRate(80),
)
if err != nil {
	log.Errorw("An error happened in creating blox instance of n4", "Err", err)
	panic(err)
}
log.Debug("Now starting n4")
if err := n4.Start(ctx); err != nil {
	log.Errorw("An error happened in starting instance of n4", "Err", err)
	panic(err)
}
defer n4.Shutdown(ctx)
log.Debugf("n4 Instantiated node in pool %s with ID: %s\n", poolName, h4.ID().String())

n4.AnnounceJoinPoolRequestPeriodically(ctx)

if err = h1.Connect(ctx, peer.AddrInfo{ID: h4.ID(), Addrs: h4.Addrs()}); err != nil {
	panic(err)
}
if err = h2.Connect(ctx, peer.AddrInfo{ID: h4.ID(), Addrs: h4.Addrs()}); err != nil {
	panic(err)
}
if err = h3.Connect(ctx, peer.AddrInfo{ID: h4.ID(), Addrs: h4.Addrs()}); err != nil {
	panic(err)
}

// Wait until the fourth node discover others
for {
	members := n4.GetBlMembers()

	for id, status := range members {
		memberInfo := fmt.Sprintf("Member ID: %s, Status: %v", id.String(), status)
		log.Debugln(memberInfo)
	}
	if len(members) >= 2 {
		break
	} else {
		log.Debugln(members)
	}
	select {
	case <-ctx.Done():
		panic(ctx.Err())
	default:
		time.Sleep(2 * time.Second)
	}
}

h4Peers := h4.Peerstore().Peers()
log.Debugf("n4 Finally %s peerstore contains %d nodes:\n", h4.ID(), len(h4Peers))
for _, id := range h4Peers {
	log.Debugf("- %s\n", id)
}

//wait for 60 seconds
count := 1
for {
	count = count + 1
	if count > 60 {
		break
	}
	select {
	case <-ctx.Done():
		panic(ctx.Err())
	default:
		time.Sleep(1 * time.Second)
	}
}

Output:

Voted on QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe {"pool_id":1,"account":"QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe","vote_value":true}
Voted on QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe {"pool_id":1,"account":"QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe","vote_value":true}
Voted on QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe {"pool_id":1,"account":"QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe","vote_value":true}

Example_poolDiscoverPeersViaPubSub starts a pool named "1" across three nodes, connects two of the nodes to the other one to facilitate a path for pubsub to propagate and shows all three nodes discover each other using pubsub.

server := startMockServer("127.0.0.1:4000")
defer func() {
	// Shutdown the server after test
	if err := server.Shutdown(context.Background()); err != nil {
		panic(err) // Handle the error as you see fit
	}
}()

const poolName = "1"
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()

// Elevate log level to show internal communications.
if err := logging.SetLogLevel("*", "info"); err != nil {
	panic(err)
}

// Use a deterministic random generator to generate deterministic
// output for the example.
rng := rand.New(rand.NewSource(42))

// Instantiate the first node in the pool
pid1, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h1, err := libp2p.New(libp2p.Identity(pid1))
if err != nil {
	panic(err)
}

n1, err := blox.New(blox.WithPoolName(poolName), blox.WithHost(h1))
if err != nil {
	panic(err)
}
if err := n1.Start(ctx); err != nil {
	panic(err)
}
defer n1.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h1.ID().String())

// Instantiate the second node in the pool
pid2, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h2, err := libp2p.New(libp2p.Identity(pid2))
if err != nil {
	panic(err)
}
n2, err := blox.New(blox.WithPoolName(poolName), blox.WithHost(h2))
if err != nil {
	panic(err)
}
if err := n2.Start(ctx); err != nil {
	panic(err)
}
defer n2.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h2.ID().String())

// Instantiate the third node in the pool
pid3, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h3, err := libp2p.New(libp2p.Identity(pid3))
if err != nil {
	panic(err)
}
n3, err := blox.New(blox.WithPoolName(poolName), blox.WithHost(h3))
if err != nil {
	panic(err)
}
if err := n3.Start(ctx); err != nil {
	panic(err)
}
defer n3.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h3.ID().String())

// Connect n1 to n2 and n3 so that there is a path for gossip propagation.
// Note that we are not connecting n2 to n3 as they should discover
// each other via pool's iexist announcements.
h1.Peerstore().AddAddrs(h2.ID(), h2.Addrs(), peerstore.PermanentAddrTTL)
if err = h1.Connect(ctx, peer.AddrInfo{ID: h2.ID(), Addrs: h2.Addrs()}); err != nil {
	panic(err)
}
h1.Peerstore().AddAddrs(h3.ID(), h3.Addrs(), peerstore.PermanentAddrTTL)
if err = h1.Connect(ctx, peer.AddrInfo{ID: h3.ID(), Addrs: h3.Addrs()}); err != nil {
	panic(err)
}

// Wait until the nodes discover each other
for {
	if len(h1.Peerstore().Peers()) == 3 &&
		len(h2.Peerstore().Peers()) == 3 &&
		len(h3.Peerstore().Peers()) == 3 {
		break
	}
	select {
	case <-ctx.Done():
		panic(ctx.Err())
	default:
		time.Sleep(time.Second)
	}
}

h1Peers := h1.Peerstore().Peers()
fmt.Printf("%s peerstore contains %d nodes:\n", h1.ID(), len(h1Peers))
for _, id := range h1Peers {
	fmt.Printf("- %s\n", id)
}

h2Peers := h2.Peerstore().Peers()
fmt.Printf("%s peerstore contains %d nodes:\n", h2.ID(), len(h2Peers))
for _, id := range h2Peers {
	fmt.Printf("- %s\n", id)
}

h3Peers := h3.Peerstore().Peers()
fmt.Printf("%s peerstore contains %d nodes:\n", h3.ID(), len(h3Peers))
for _, id := range h2Peers {
	fmt.Printf("- %s\n", id)
}

Output:

Instantiated node in pool 1 with ID: QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
Instantiated node in pool 1 with ID: QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF
Instantiated node in pool 1 with ID: QmYMEnv3GUKPNr34gePX2qQmBH4YEQcuGhQHafuKuujvMA
QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT peerstore contains 3 nodes:
- QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
- QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF
- QmYMEnv3GUKPNr34gePX2qQmBH4YEQcuGhQHafuKuujvMA
QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF peerstore contains 3 nodes:
- QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF
- QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
- QmYMEnv3GUKPNr34gePX2qQmBH4YEQcuGhQHafuKuujvMA
QmYMEnv3GUKPNr34gePX2qQmBH4YEQcuGhQHafuKuujvMA peerstore contains 3 nodes:
- QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF
- QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
- QmYMEnv3GUKPNr34gePX2qQmBH4YEQcuGhQHafuKuujvMA

server := startMockServer("127.0.0.1:4000")
defer func() {
	// Shutdown the server after test
	if err := server.Shutdown(context.Background()); err != nil {
		panic(err) // Handle the error as you see fit
	}
}()

const poolName = "1"
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()

// Elevate log level to show internal communications.
if err := logging.SetLogLevel("*", "debug"); err != nil {
	panic(err)
}

// Use a deterministic random generator to generate deterministic
// output for the example.
rng := rand.New(rand.NewSource(42))

// Instantiate the first node in the pool
pid1, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h1, err := libp2p.New(libp2p.Identity(pid1))
if err != nil {
	panic(err)
}
n1, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h1),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{"/dns/relay.dev.fx.land/tcp/4001/p2p/12D3KooWDRrBaAfPwsGJivBoUw5fE7ZpDiyfUjqgiURq2DEcL835"}),
	blox.WithPingCount(5),
	blox.WithExchangeOpts(
		exchange.WithDhtProviderOptions(
			dht.ProtocolExtension(protocol.ID("/"+poolName)),
			dht.ProtocolPrefix("/fula"),
			dht.Resiliency(1),
			dht.Mode(dht.ModeAutoServer),
		),
	),
)
if err != nil {
	panic(err)
}
if err := n1.Start(ctx); err != nil {
	panic(err)
}
defer n1.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h1.ID().String())

// Instantiate the second node in the pool
pid2, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h2, err := libp2p.New(libp2p.Identity(pid2))
if err != nil {
	panic(err)
}
n2, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h2),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{"/dns/relay.dev.fx.land/tcp/4001/p2p/12D3KooWDRrBaAfPwsGJivBoUw5fE7ZpDiyfUjqgiURq2DEcL835"}),
	blox.WithPingCount(5),
	blox.WithExchangeOpts(
		exchange.WithDhtProviderOptions(
			dht.ProtocolExtension(protocol.ID("/"+poolName)),
			dht.ProtocolPrefix("/fula"),
			dht.Resiliency(1),
			dht.Mode(dht.ModeAutoServer),
		),
	),
)
if err != nil {
	panic(err)
}
if err := n2.Start(ctx); err != nil {
	panic(err)
}
defer n2.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h2.ID().String())

// Instantiate the third node in the pool
pid3, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h3, err := libp2p.New(libp2p.Identity(pid3))
if err != nil {
	panic(err)
}
n3, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h3),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{"/dns/relay.dev.fx.land/tcp/4001/p2p/12D3KooWDRrBaAfPwsGJivBoUw5fE7ZpDiyfUjqgiURq2DEcL835"}),
	blox.WithPingCount(5),
	blox.WithExchangeOpts(
		exchange.WithDhtProviderOptions(
			dht.ProtocolExtension(protocol.ID("/"+poolName)),
			dht.ProtocolPrefix("/fula"),
			dht.Resiliency(1),
			dht.Mode(dht.ModeAutoServer),
		),
	),
)
if err != nil {
	panic(err)
}
if err := n3.Start(ctx); err != nil {
	panic(err)
}
defer n3.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h3.ID().String())

// Instantiate the third node in the pool
pid4, _, err := crypto.GenerateECDSAKeyPair(rng)
if err != nil {
	panic(err)
}
h4, err := libp2p.New(libp2p.Identity(pid4))
if err != nil {
	panic(err)
}
n4, err := blox.New(
	blox.WithPoolName(poolName),
	blox.WithTopicName(poolName),
	blox.WithHost(h4),
	blox.WithUpdatePoolName(updatePoolName),
	blox.WithRelays([]string{"/dns/relay.dev.fx.land/tcp/4001/p2p/12D3KooWDRrBaAfPwsGJivBoUw5fE7ZpDiyfUjqgiURq2DEcL835"}),
	blox.WithPingCount(5),
	blox.WithExchangeOpts(
		exchange.WithDhtProviderOptions(
			dht.ProtocolExtension(protocol.ID("/"+poolName)),
			dht.ProtocolPrefix("/fula"),
			dht.Resiliency(1),
			dht.Mode(dht.ModeAutoServer),
		),
	),
)
if err != nil {
	panic(err)
}
if err := n4.Start(ctx); err != nil {
	panic(err)
}
defer n4.Shutdown(ctx)
fmt.Printf("Instantiated node in pool %s with ID: %s\n", poolName, h4.ID().String())

// Connect n1 to n2.
h1.Peerstore().AddAddrs(h2.ID(), h2.Addrs(), peerstore.PermanentAddrTTL)
if err = h1.Connect(ctx, peer.AddrInfo{ID: h2.ID(), Addrs: h2.Addrs()}); err != nil {
	panic(err)
}
h2.Peerstore().AddAddrs(h1.ID(), h1.Addrs(), peerstore.PermanentAddrTTL)
if err = h2.Connect(ctx, peer.AddrInfo{ID: h1.ID(), Addrs: h1.Addrs()}); err != nil {
	panic(err)
}
h3.Peerstore().AddAddrs(h1.ID(), h1.Addrs(), peerstore.PermanentAddrTTL)
if err = h3.Connect(ctx, peer.AddrInfo{ID: h1.ID(), Addrs: h1.Addrs()}); err != nil {
	panic(err)
}
h4.Peerstore().AddAddrs(h1.ID(), h1.Addrs(), peerstore.PermanentAddrTTL)
if err = h4.Connect(ctx, peer.AddrInfo{ID: h1.ID(), Addrs: h1.Addrs()}); err != nil {
	panic(err)
}

for {
	if len(h1.Peerstore().Peers()) >= 3 &&
		len(h2.Peerstore().Peers()) >= 3 &&
		len(h3.Peerstore().Peers()) >= 3 &&
		len(h4.Peerstore().Peers()) >= 3 {
		break
	}
	select {
	case <-ctx.Done():
		panic(ctx.Err())
	default:
		time.Sleep(time.Second)
	}
}

// Authorize exchange between the two nodes
if err := n1.SetAuth(ctx, h1.ID(), h2.ID(), true); err != nil {
	panic(err)
}
if err := n2.SetAuth(ctx, h2.ID(), h1.ID(), true); err != nil {
	panic(err)
}

// Generate a sample DAG and store it on node 1 (n1) in the pool, which we will pull from n1
n1leaf := fluent.MustBuildMap(basicnode.Prototype.Map, 1, func(na fluent.MapAssembler) {
	na.AssembleEntry("this").AssignBool(true)
})
n1leafLink, err := n1.Store(ctx, n1leaf)
if err != nil {
	panic(err)
}
n1Root := fluent.MustBuildMap(basicnode.Prototype.Map, 2, func(na fluent.MapAssembler) {
	na.AssembleEntry("that").AssignInt(42)
	na.AssembleEntry("oneLeafLink").AssignLink(n1leafLink)
})
n1RootLink, err := n1.Store(ctx, n1Root)
if err != nil {
	panic(err)
}
fmt.Printf("%s stored IPLD data with links:\n    root: %s\n    leaf:%s\n", h1.ID(), n1RootLink, n1leafLink)

// Generate a sample DAG and store it on node 2 (n1) in the pool, which we will push to n1
n2leaf := fluent.MustBuildMap(basicnode.Prototype.Map, 1, func(na fluent.MapAssembler) {
	na.AssembleEntry("that").AssignBool(false)
})
n2leafLink, err := n2.Store(ctx, n2leaf)
if err != nil {
	panic(err)
}
n2Root := fluent.MustBuildMap(basicnode.Prototype.Map, 2, func(na fluent.MapAssembler) {
	na.AssembleEntry("this").AssignInt(24)
	na.AssembleEntry("anotherLeafLink").AssignLink(n2leafLink)
})
n2RootLink, err := n2.Store(ctx, n2Root)
if err != nil {
	panic(err)
}
fmt.Printf("%s stored IPLD data with links:\n    root: %s\n    leaf:%s\n", h1.ID(), n1RootLink, n1leafLink)

fmt.Println("exchanging by Pull...")
// Pull the sample DAG stored on node 1 from node 2 by only asking for the root link.
// Because fetch implementation is recursive, it should fetch the leaf link too.
if err := n2.Pull(ctx, h1.ID(), n1RootLink); err != nil {
	panic(err)
}

// Assert that n2 now has both root and leaf links
if exists, err := n2.Has(ctx, n1RootLink); err != nil {
	panic(err)
} else if !exists {
	panic("expected n2 to have fetched the entire sample DAG")
} else {
	fmt.Printf("%s successfully fetched:\n    link: %s\n    from %s\n", h2.ID(), n1RootLink, h1.ID())
	n, err := n2.Load(ctx, n1RootLink, basicnode.Prototype.Any)
	if err != nil {
		panic(err)
	}
	var buf bytes.Buffer
	if err := dagjson.Encode(n, &buf); err != nil {
		panic(err)
	}
	fmt.Printf("    content: %s\n", buf.String())
}
if exists, err := n2.Has(ctx, n1leafLink); err != nil {
	panic(err)
} else if !exists {
	panic("expected n2 to have fetched the entire sample DAG")
} else {
	fmt.Printf("%s successfully fetched:\n    link: %s\n    from %s\n", h2.ID(), n1leafLink, h1.ID())
	n, err := n2.Load(ctx, n1leafLink, basicnode.Prototype.Any)
	if err != nil {
		panic(err)
	}
	var buf bytes.Buffer
	if err := dagjson.Encode(n, &buf); err != nil {
		panic(err)
	}
	fmt.Printf("    content: %s\n", buf.String())
}

fmt.Println("exchanging by Push...")
// Push the sample DAG stored on node 2 to node 1 by only pushing the root link.
// Because Push implementation is recursive, it should push the leaf link too.
if err := n2.Push(ctx, h1.ID(), n2RootLink); err != nil {
	panic(err)
}

// Since push is an asynchronous operation, wait until background push is finished
// by periodically checking if link is present on node 1.
for {
	if exists, _ := n1.Has(ctx, n2RootLink); exists {
		break
	}
	select {
	case <-ctx.Done():
		panic(ctx.Err())
	default:
		time.Sleep(time.Second)
	}
}

// Assert that n1 now has both root and leaf links
if exists, err := n1.Has(ctx, n2RootLink); err != nil {
	panic(err)
} else if !exists {
	panic("expected n2 to have pushed the entire sample DAG")
} else {
	fmt.Printf("%s successfully pushed:\n    link: %s\n    from %s\n", h2.ID(), n1RootLink, h1.ID())
	n, err := n1.Load(ctx, n2RootLink, basicnode.Prototype.Any)
	if err != nil {
		panic(err)
	}
	var buf bytes.Buffer
	if err := dagjson.Encode(n, &buf); err != nil {
		panic(err)
	}
	fmt.Printf("    content: %s\n", buf.String())
}
if exists, err := n1.Has(ctx, n2leafLink); err != nil {
	panic(err)
} else if !exists {
	panic("expected n2 to have pushed the entire sample DAG")
} else {
	fmt.Printf("%s successfully pushed:\n    link: %s\n    from %s\n", h2.ID(), n1leafLink, h1.ID())
	n, err := n1.Load(ctx, n2leafLink, basicnode.Prototype.Any)
	if err != nil {
		panic(err)
	}
	var buf bytes.Buffer
	if err := dagjson.Encode(n, &buf); err != nil {
		panic(err)
	}
	fmt.Printf("    content: %s\n", buf.String())
}
peerlist3, err := n3.FindLinkProvidersByDht(n2leafLink)
if err != nil {
	fmt.Print("Error happened in FindLinkProvidersByDht3")
	panic(err)
}

// Iterate over the slice and print the peer ID of each AddrInfo
for _, addrInfo := range peerlist3 {
	fmt.Printf("Found %s on %s\n", n2leafLink, addrInfo.ID.String()) // ID.String() converts the peer ID to a string
}

n3.FetchAvailableManifestsAndStore(ctx, 2)
time.Sleep(1 * time.Second)
n4.FetchAvailableManifestsAndStore(ctx, 2)

Output:

Instantiated node in pool 1 with ID: QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
Instantiated node in pool 1 with ID: QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF
Instantiated node in pool 1 with ID: QmYMEnv3GUKPNr34gePX2qQmBH4YEQcuGhQHafuKuujvMA
Instantiated node in pool 1 with ID: QmUg1bGBZ1rSNt3LZR7kKf9RDy3JtJLZZDZGKrzSP36TMe
QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT stored IPLD data with links:
    root: bafyreibzsetfhqrayathm5tkmm7axuljxcas3pbqrncrosx2fiky4wj5gy
    leaf:bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34
QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT stored IPLD data with links:
    root: bafyreibzsetfhqrayathm5tkmm7axuljxcas3pbqrncrosx2fiky4wj5gy
    leaf:bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34
exchanging by Pull...
QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF successfully fetched:
    link: bafyreibzsetfhqrayathm5tkmm7axuljxcas3pbqrncrosx2fiky4wj5gy
    from QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
    content: {"oneLeafLink":{"/":"bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34"},"that":42}
QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF successfully fetched:
    link: bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34
    from QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
    content: {"this":true}
exchanging by Push...
QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF successfully pushed:
    link: bafyreibzsetfhqrayathm5tkmm7axuljxcas3pbqrncrosx2fiky4wj5gy
    from QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
    content: {"anotherLeafLink":{"/":"bafyreibzxn3zdk6e53h7cvx2sfbbroozp5e3kuvz6t4jfo2hfu4ic2ooc4"},"this":24}
QmPNZMi2LAhczsN2FoXXQng6YFYbSHApuP6RpKuHbBH9eF successfully pushed:
    link: bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34
    from QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
    content: {"that":false}
Found bafyreibzxn3zdk6e53h7cvx2sfbbroozp5e3kuvz6t4jfo2hfu4ic2ooc4 on QmaUMRTBMoANXqpUbfARnXkw9esfz9LP2AjXRRr7YknDAT
Stored manifest: {"cid":["bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34","bafyreibzsetfhqrayathm5tkmm7axuljxcas3pbqrncrosx2fiky4wj5gy"],"pool_id":1}
Stored manifest: {"cid":["bafyreidulpo7on77a6pkq7c6da5mlj4n2p3av2zjomrpcpeht5zqgafc34","bafyreibzsetfhqrayathm5tkmm7axuljxcas3pbqrncrosx2fiky4wj5gy"],"pool_id":1}