Interface LightNode

events

waku.events.addEventListener(WakuEvent.Connection, (event) => {
  console.log(event.detail); // true if connected, false if disconnected
});
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health

console.log(waku.health); // 'Unhealthy'
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libp2p

peerId

console.log(waku.peerId); // 12D3KooWNmk9yXHfHJ4rUduRqD1TCTHkNFMPF9WP2dqWpZDL4aUb
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protocols

console.log(waku.protocols); // ['/ipfs/id/1.0.0', '/ipfs/ping/1.0.0', '/vac/waku/filter-push/2.0.0-beta1', '/vac/waku/metadata/1.0.0']
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createDecoder

• createDecoder(params: CreateDecoderParams): IDecoder<IDecodedMessage>

  Creates a decoder for Waku messages on a specific content topic.

  A decoder is used to decode messages from the Waku network format. The decoder automatically handles shard configuration based on the Waku node's network settings.

  Parameters

  • params: CreateDecoderParams

    Configuration for the decoder

  Returns IDecoder<IDecodedMessage>

  A decoder instance configured for the specified content topic

  Throws

  If the shard configuration is incompatible with the node's network settings

  Example

  // Create a decoder with default network shard settings
  const decoder = waku.createDecoder({
    contentTopic: "/my-app/1/chat/proto"
  });
  
  // Create a decoder with custom shard settings
  const customDecoder = waku.createDecoder({
    contentTopic: "/my-app/1/chat/proto",
    shardInfo: {
      clusterId: 1,
      shard: 5
    }
  });
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createEncoder

• createEncoder(params: CreateEncoderParams): IEncoder

  Creates an encoder for Waku messages on a specific content topic.

  An encoder is used to encode messages into the Waku network format. The encoder automatically handles shard configuration based on the Waku node's network settings.

  Parameters

  • params: CreateEncoderParams

    Configuration for the encoder including content topic and optionally shard information and ephemeral flag

  Returns IEncoder

  An encoder instance configured for the specified content topic

  Throws

  If the shard configuration is incompatible with the node's network settings

  Example

  // Create a basic encoder with default network shard settings
  const encoder = waku.createEncoder({
    contentTopic: "/my-app/1/chat/proto"
  });
  
  // Create an ephemeral encoder (messages won't be stored by store nodes)
  const ephemeralEncoder = waku.createEncoder({
    contentTopic: "/my-app/1/notifications/proto",
    ephemeral: true,
    shardInfo: {
      clusterId: 2,
      shardsUnderCluster: 16
    }
  });
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dial

• dial(peer: PeerId | MultiaddrInput, protocols?: Protocols[]): Promise<Stream>

  Dials to the provided peer

  Parameters

  • peer: PeerId | MultiaddrInput

    information to use for dialing
  • Optionalprotocols: Protocols[]

    array of Waku protocols to be used for dialing. If no provided - will be derived from mounted protocols.

  Returns Promise<Stream>

  Promise that will resolve to a Stream to a dialed peer and will reject if the connection fails

  Example

  await waku.dial(remotePeerId, [Protocols.LightPush]);
  
  waku.isConnected() === true;
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getConnectedPeers

• getConnectedPeers(): Promise<Peer[]>

  Returns Promise<Peer[]>

  an array of all connected peers

hangUp

• hangUp(peer: PeerId | MultiaddrInput): Promise<boolean>

  Hang up a connection to a peer

  Parameters

  • peer: PeerId | MultiaddrInput

    information to use for hanging up

  Returns Promise<boolean>

  Promise that will resolve to true if the connection is hung up, false otherwise

isConnected

• isConnected(): boolean

  Returns boolean

  true if the node has working connection and false otherwise

isStarted

• isStarted(): boolean

  Returns boolean

  true if the node was started and false otherwise

start

• start(): Promise<void>

  Starts all services and components related to functionality of Waku node.

  Returns Promise<void>

  Promise that will resolve when started.

  Example

  await waku.start();
  
  waku.isStarted() === true;
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stop

• stop(): Promise<void>

  Stops all recurring processes and services that are needed for functionality of Waku node.

  Returns Promise<void>

  Promise that resolves when stopped.

  Example

  await waku.stop();
  
  waku.isStarted === false;
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waitForPeers

• waitForPeers(protocols?: Protocols[], timeoutMs?: number): Promise<void>

  Resolves when Waku successfully gains connection to a remote peers that fits provided requirements. Must be used after attempting to connect to nodes, using IWaku.dial or if was bootstrapped by using IPeerExchange or DnsDiscoveryComponents.

  Parameters

  • Optionalprotocols: Protocols[]

    Protocols that need to be enabled by remote peers
  • OptionaltimeoutMs: number

    Timeout value in milliseconds after which promise rejects

  Returns Promise<void>

  Promise that resolves if all desired protocols are fulfilled by at least one remote peer, rejects if the timeoutMs is reached

  Throws

  If passing a protocol that is not mounted or Waku node is not started

  Example

  try {
   // let's wait for at least one LightPush node and timeout in 1 second
   await waku.waitForPeers([Protocols.LightPush], 1000);
  } catch(e) {
   waku.isConnected() === false;
   console.error("Failed to connect due to", e);
  }
  
  waku.isConnected() === true;
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