nwaku/library/events/json_message_event.nim

43 lines
1.0 KiB
Nim

import
std/json
import
../../waku/waku_core/message/message,
./json_base_event
type JsonMessage = ref object
# https://rfc.vac.dev/spec/36/#jsonmessage-type
payload: string
contentTopic: string
version: uint
timestamp: int64
type JsonMessageEvent* = ref object of JsonEvent
pubsubTopic*: string
messageId*: string
wakuMessage*: JsonMessage
proc new*(T: type JsonMessageEvent,
pubSubTopic: string,
msg: WakuMessage): T =
# Returns a WakuMessage event as indicated in
# https://rfc.vac.dev/spec/36/#jsonmessageevent-type
var payload = newString(len(msg.payload))
copyMem(addr payload[0], unsafeAddr msg.payload[0], len(msg.payload))
return JsonMessageEvent(
eventType: "message",
pubSubTopic: pubSubTopic,
messageId: "TODO",
wakuMessage: JsonMessage(
payload: payload,
contentTopic: msg.contentTopic,
version: msg.version,
timestamp: int64(msg.timestamp)
)
)
method `$`*(jsonMessage: JsonMessageEvent): string =
$( %* jsonMessage )