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https://github.com/logos-messaging/logos-messaging-nim.git
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53 lines
1.6 KiB
Nim
53 lines
1.6 KiB
Nim
## Messaging layer core: the `MessagingClient` type plus its construction and
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## lifecycle. The public operations (subscribe / unsubscribe / send) live in
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## `messaging/api.nim`.
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import results, chronos
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import chronicles
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import
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logos_delivery/messaging/messaging_client,
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logos_delivery/messaging/api/send,
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logos_delivery/api/messaging_client_api,
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logos_delivery/waku/waku,
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logos_delivery/waku/api/subscriptions,
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logos_delivery/messaging/delivery_service/[recv_service, send_service]
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# Surfaces the messaging API interface (and its Message* events) to consumers.
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export messaging_client
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proc start*(self: MessagingClient): Result[void, string] =
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if self.started:
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return ok()
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self.recvService.startRecvService()
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self.sendService.startSendService()
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?MessagingSend.setProvider(
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self.brokerCtx,
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proc(envelope: MessageEnvelope): Future[Result[RequestId, string]] {.async.} =
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return await self.send(envelope),
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)
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?MessagingSubscribe.setProvider(
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self.brokerCtx,
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proc(contentTopic: ContentTopic): Result[void, string] =
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self.waku.subscribe(contentTopic),
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)
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?MessagingUnsubscribe.setProvider(
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self.brokerCtx,
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proc(contentTopic: ContentTopic): Result[void, string] =
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self.waku.unsubscribe(contentTopic),
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)
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self.started = true
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ok()
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proc stop*(self: MessagingClient) {.async.} =
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if not self.started:
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return
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MessagingSend.clearProvider(self.brokerCtx)
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MessagingSubscribe.clearProvider(self.brokerCtx)
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MessagingUnsubscribe.clearProvider(self.brokerCtx)
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await self.sendService.stopSendService()
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await self.recvService.stopRecvService()
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self.started = false
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