nwaku/waku/waku_lightpush/self_req_handler.nim

51 lines
1.8 KiB
Nim

{.push raises: [].}
## Notice that the REST /lightpush requests normally assume that the node
## is acting as a lightpush-client that will trigger the service provider node
## to relay the message.
## In this module, we allow that a lightpush service node (full node) can be
## triggered directly through the REST /lightpush endpoint.
## The typical use case for that is when using `nwaku-compose`,
## which spawn a full service Waku node
## that could be used also as a lightpush client, helping testing and development.
import results, chronos, std/options, metrics
import
../waku_core,
./protocol,
./common,
./rpc,
./rpc_codec,
./protocol_metrics,
../utils/requests
proc handleSelfLightPushRequest*(
self: WakuLightPush, pubSubTopic: PubsubTopic, message: WakuMessage
): Future[WakuLightPushResult[void]] {.async.} =
## Handles the lightpush requests made by the node to itself.
## Normally used in REST-lightpush requests
try:
# provide self peerId as now this node is used directly, thus there is no light client sender peer.
let selfPeerId = self.peerManager.switch.peerInfo.peerId
let req = PushRequest(pubSubTopic: pubSubTopic, message: message)
let rpc = PushRPC(requestId: generateRequestId(self.rng), request: some(req))
let respRpc = await self.handleRequest(selfPeerId, rpc.encode().buffer)
if respRpc.response.isNone():
waku_lightpush_errors.inc(labelValues = [emptyResponseBodyFailure])
return err(emptyResponseBodyFailure)
let response = respRpc.response.get()
if not response.isSuccess:
if response.info.isSome():
return err(response.info.get())
else:
return err("unknown failure")
return ok()
except Exception:
return err("exception in handleSelfLightPushRequest: " & getCurrentExceptionMsg())