mirror of https://github.com/waku-org/nwaku.git
72 lines
2.1 KiB
Nim
72 lines
2.1 KiB
Nim
when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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import
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std/options,
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stew/results,
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chronicles,
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chronos,
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metrics,
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bearssl/rand
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import
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../node/peer_manager,
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../utils/requests,
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../waku_core,
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./protocol,
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./protocol_metrics,
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./rpc,
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./rpc_codec
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logScope:
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topics = "waku lightpush client"
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type WakuLightPushClient* = ref object
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peerManager*: PeerManager
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rng*: ref rand.HmacDrbgContext
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proc new*(T: type WakuLightPushClient,
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peerManager: PeerManager,
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rng: ref rand.HmacDrbgContext): T =
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WakuLightPushClient(peerManager: peerManager, rng: rng)
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proc sendPushRequest(wl: WakuLightPushClient, req: PushRequest, peer: PeerId|RemotePeerInfo): Future[WakuLightPushResult[void]] {.async, gcsafe.} =
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let connOpt = await wl.peerManager.dialPeer(peer, WakuLightPushCodec)
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if connOpt.isNone():
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waku_lightpush_errors.inc(labelValues = [dialFailure])
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return err(dialFailure)
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let connection = connOpt.get()
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let rpc = PushRPC(requestId: generateRequestId(wl.rng), request: some(req))
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await connection.writeLP(rpc.encode().buffer)
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var buffer = await connection.readLp(MaxRpcSize.int)
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let decodeRespRes = PushRPC.decode(buffer)
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if decodeRespRes.isErr():
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error "failed to decode response"
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waku_lightpush_errors.inc(labelValues = [decodeRpcFailure])
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return err(decodeRpcFailure)
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let pushResponseRes = decodeRespRes.get()
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if pushResponseRes.response.isNone():
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waku_lightpush_errors.inc(labelValues = [emptyResponseBodyFailure])
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return err(emptyResponseBodyFailure)
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let response = pushResponseRes.response.get()
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if not response.isSuccess:
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if response.info.isSome():
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return err(response.info.get())
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else:
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return err("unknown failure")
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return ok()
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proc publish*(wl: WakuLightPushClient, pubsubTopic: PubsubTopic, message: WakuMessage, peer: PeerId|RemotePeerInfo): Future[WakuLightPushResult[void]] {.async, gcsafe.} =
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let pushRequest = PushRequest(pubsubTopic: pubsubTopic, message: message)
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return await wl.sendPushRequest(pushRequest, peer)
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