nwaku/waku/waku_api/rest/lightpush/handlers.nim

84 lines
2.2 KiB
Nim

when (NimMajor, NimMinor) < (1, 4):
{.push raises: [Defect].}
else:
{.push raises: [].}
import
std/strformat,
stew/byteutils,
chronicles,
json_serialization,
json_serialization/std/options,
presto/route,
presto/common
import
../../waku/node/peer_manager,
../../../waku_node,
../../waku/waku_lightpush/common,
../../handlers,
../serdes,
../responses,
../rest_serdes,
./types
export types
logScope:
topics = "waku node rest lightpush api"
const futTimeoutForPushRequestProcessing* = 5.seconds
const NoPeerNoDiscoError = RestApiResponse.serviceUnavailable(
"No suitable service peer & no discovery method")
const NoPeerNoneFoundError = RestApiResponse.serviceUnavailable(
"No suitable service peer & none discovered")
#### Request handlers
const ROUTE_LIGHTPUSH* = "/lightpush/v1/message"
proc installLightPushRequestHandler*(
router: var RestRouter,
node: WakuNode,
discHandler: Option[DiscoveryHandler] = none(DiscoveryHandler),
) =
router.api(MethodPost, ROUTE_LIGHTPUSH) do (contentBody: Option[ContentBody]) -> RestApiResponse:
## Send a request to push a waku message
debug "post", ROUTE_LIGHTPUSH, contentBody
let decodedBody = decodeRequestBody[PushRequest](contentBody)
if decodedBody.isErr():
return decodedBody.error()
let req: PushRequest = decodedBody.value()
let msg = req.message.toWakuMessage().valueOr:
return RestApiResponse.badRequest("Invalid message: " & $error)
let peer = node.peerManager.selectPeer(WakuLightPushCodec).valueOr:
let handler = discHandler.valueOr:
return NoPeerNoDiscoError
let peerOp = (await handler()).valueOr:
return RestApiResponse.internalServerError("No value in peerOp: " & $error)
peerOp.valueOr:
return NoPeerNoneFoundError
let subFut = node.lightpushPublish(req.pubsubTopic, msg, peer)
if not await subFut.withTimeout(futTimeoutForPushRequestProcessing):
error "Failed to request a message push due to timeout!"
return RestApiResponse.serviceUnavailable("Push request timed out")
if subFut.value().isErr():
return RestApiResponse.serviceUnavailable(
fmt("Failed to request a message push: {subFut.value().error}")
)
return RestApiResponse.ok()