mirror of https://github.com/waku-org/nwaku.git
140 lines
4.0 KiB
Nim
140 lines
4.0 KiB
Nim
import
|
||
std/[tables, times, sequtils],
|
||
stew/byteutils,
|
||
stew/shims/net,
|
||
chronicles,
|
||
chronos,
|
||
confutils,
|
||
libp2p/crypto/crypto,
|
||
eth/keys,
|
||
eth/p2p/discoveryv5/enr
|
||
|
||
import
|
||
waku/[
|
||
common/logging,
|
||
node/peer_manager,
|
||
waku_core,
|
||
waku_node,
|
||
waku_enr,
|
||
discovery/waku_discv5,
|
||
factory/builder,
|
||
]
|
||
|
||
proc now*(): Timestamp =
|
||
getNanosecondTime(getTime().toUnixFloat())
|
||
|
||
# An accesible bootstrap node. See waku.sandbox fleets.status.im
|
||
const bootstrapNode =
|
||
"enr:-QEkuEB3WHNS-xA3RDpfu9A2Qycr3bN3u7VoArMEiDIFZJ6" &
|
||
"6F1EB3d4wxZN1hcdcOX-RfuXB-MQauhJGQbpz3qUofOtLAYJpZI" &
|
||
"J2NIJpcIQI2SVcim11bHRpYWRkcnO4bgA0Ni9ub2RlLTAxLmFjL" &
|
||
"WNuLWhvbmdrb25nLWMud2FrdS5zYW5kYm94LnN0YXR1cy5pbQZ2" &
|
||
"XwA2Ni9ub2RlLTAxLmFjLWNuLWhvbmdrb25nLWMud2FrdS5zYW5" &
|
||
"kYm94LnN0YXR1cy5pbQYfQN4DgnJzkwABCAAAAAEAAgADAAQABQ" &
|
||
"AGAAeJc2VjcDI1NmsxoQPK35Nnz0cWUtSAhBp7zvHEhyU_AqeQU" &
|
||
"lqzLiLxfP2L4oN0Y3CCdl-DdWRwgiMohXdha3UyDw"
|
||
|
||
# careful if running pub and sub in the same machine
|
||
const wakuPort = 60000
|
||
const discv5Port = 9000
|
||
|
||
proc setupAndPublish(rng: ref HmacDrbgContext) {.async.} =
|
||
# use notice to filter all waku messaging
|
||
setupLog(logging.LogLevel.NOTICE, logging.LogFormat.TEXT)
|
||
|
||
notice "starting publisher", wakuPort = wakuPort, discv5Port = discv5Port
|
||
let
|
||
nodeKey = crypto.PrivateKey.random(Secp256k1, rng[]).get()
|
||
ip = parseIpAddress("0.0.0.0")
|
||
flags = CapabilitiesBitfield.init(relay = true)
|
||
|
||
var enrBuilder = EnrBuilder.init(nodeKey)
|
||
|
||
let recordRes = enrBuilder.build()
|
||
let record =
|
||
if recordRes.isErr():
|
||
error "failed to create enr record", error = recordRes.error
|
||
quit(QuitFailure)
|
||
else:
|
||
recordRes.get()
|
||
|
||
var builder = WakuNodeBuilder.init()
|
||
builder.withNodeKey(nodeKey)
|
||
builder.withRecord(record)
|
||
builder.withNetworkConfigurationDetails(ip, Port(wakuPort)).tryGet()
|
||
let node = builder.build().tryGet()
|
||
|
||
var bootstrapNodeEnr: enr.Record
|
||
discard bootstrapNodeEnr.fromURI(bootstrapNode)
|
||
|
||
let discv5Conf = WakuDiscoveryV5Config(
|
||
discv5Config: none(DiscoveryConfig),
|
||
address: ip,
|
||
port: Port(discv5Port),
|
||
privateKey: keys.PrivateKey(nodeKey.skkey),
|
||
bootstrapRecords: @[bootstrapNodeEnr],
|
||
autoupdateRecord: true,
|
||
)
|
||
|
||
# assumes behind a firewall, so not care about being discoverable
|
||
let wakuDiscv5 = WakuDiscoveryV5.new(
|
||
node.rng,
|
||
discv5Conf,
|
||
some(node.enr),
|
||
some(node.peerManager),
|
||
node.topicSubscriptionQueue,
|
||
)
|
||
|
||
await node.start()
|
||
await node.mountRelay()
|
||
node.peerManager.start()
|
||
|
||
(await wakuDiscv5.start()).isOkOr:
|
||
error "failed to start discv5", error = error
|
||
quit(1)
|
||
|
||
# wait for a minimum of peers to be connected, otherwise messages wont be gossiped
|
||
while true:
|
||
let numConnectedPeers =
|
||
node.peerManager.peerStore[ConnectionBook].book.values().countIt(it == Connected)
|
||
if numConnectedPeers >= 6:
|
||
notice "publisher is ready", connectedPeers = numConnectedPeers, required = 6
|
||
break
|
||
notice "waiting to be ready", connectedPeers = numConnectedPeers, required = 6
|
||
await sleepAsync(5000)
|
||
|
||
# Make sure it matches the publisher. Use default value
|
||
# see spec: https://rfc.vac.dev/spec/23/
|
||
let pubSubTopic = PubsubTopic("/waku/2/rs/0/0")
|
||
|
||
# any content topic can be chosen
|
||
let contentTopic = ContentTopic("/examples/1/pubsub-example/proto")
|
||
|
||
notice "publisher service started"
|
||
while true:
|
||
let text = "hi there i'm a publisher"
|
||
let message = WakuMessage(
|
||
payload: toBytes(text), # content of the message
|
||
contentTopic: contentTopic, # content topic to publish to
|
||
ephemeral: true, # tell store nodes to not store it
|
||
timestamp: now(),
|
||
) # current timestamp
|
||
|
||
let res = await node.publish(some(pubSubTopic), message)
|
||
|
||
if res.isOk:
|
||
notice "published message",
|
||
text = text,
|
||
timestamp = message.timestamp,
|
||
psTopic = pubSubTopic,
|
||
contentTopic = contentTopic
|
||
else:
|
||
error "failed to publish message", error = res.error
|
||
|
||
await sleepAsync(5000)
|
||
|
||
when isMainModule:
|
||
let rng = crypto.newRng()
|
||
asyncSpawn setupAndPublish(rng)
|
||
runForever()
|