35 lines
1.0 KiB
Nim

import std/[json, strformat]
import chronicles, chronos, results, ffi
import
logos_delivery,
logos_delivery/waku/waku_core/message,
logos_delivery/waku/waku_core/topics/pubsub_topic,
library/events/json_message_event,
library/declare_lib
proc waku_lightpush_publish(
ctx: ptr FFIContext[LogosDelivery],
callback: FFICallBack,
userData: pointer,
pubSubTopic: cstring,
jsonWakuMessage: cstring,
) {.ffiRaw.} =
var jsonMessage: JsonMessage
try:
let jsonContent = parseJson($jsonWakuMessage)
jsonMessage = JsonMessage.fromJsonNode(jsonContent).valueOr:
raise newException(JsonParsingError, $error)
except JsonParsingError as exc:
return err(fmt"Error parsing json message: {exc.msg}")
let msg = json_message_event.toWakuMessage(jsonMessage).valueOr:
return err("Problem building the WakuMessage: " & $error)
let msgHashHex = (
await ctx.myLib[].waku.lightpushPublish(PubsubTopic($pubSubTopic), msg)
).valueOr:
error "PUBLISH failed", error = error
return err(error)
return ok(msgHashHex)