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e8d3156571
* Make basic Waku v2 examples run again Regression introduced in https://github.com/status-im/nim-waku/pull/117 Happened due to example not being run on CI. - Add wakuexample to all target - Fix example2 to run - Basic formatting * Update examples/v2/basic2.nim Co-authored-by: Kim De Mey <kim.demey@gmail.com> * Update examples/v2/basic2.nim * Update examples/v2/basic2.nim * Update examples/v2/basic2.nim Co-authored-by: Kim De Mey <kim.demey@gmail.com>
40 lines
1.2 KiB
Nim
40 lines
1.2 KiB
Nim
## Here's a basic example of how you would start a Waku node, subscribe to
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## topics, and publish to them.
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import
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std/os,
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confutils, chronicles, chronos,
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stew/shims/net as stewNet,
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libp2p/crypto/[crypto,secp],
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eth/keys,
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json_rpc/[rpcclient, rpcserver],
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../../waku/node/v2/[config, wakunode2, waku_types],
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../../waku/node/common
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# Node operations happens asynchronously
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proc runBackground() {.async.} =
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let
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conf = WakuNodeConf.load()
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(extIp, extTcpPort, extUdpPort) = setupNat(conf.nat, clientId,
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Port(uint16(conf.tcpPort) + conf.portsShift),
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Port(uint16(conf.udpPort) + conf.portsShift))
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node = WakuNode.init(conf.nodeKey, conf.libp2pAddress,
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Port(uint16(conf.tcpPort) + conf.portsShift), extIp, extTcpPort)
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await node.start()
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# Subscribe to a topic
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let topic = "foobar"
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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info "Hit subscribe handler", topic=topic, data=data, decoded=cast[string](data)
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node.subscribe(topic, handler)
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# Publish to a topic
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let message = cast[seq[byte]]("hello world")
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node.publish(topic, message)
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# TODO Await with try/except here
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discard runBackground()
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runForever()
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