Fix edge mode config and test added

examples/api_example/api_example.nim

@@ -8,6 +8,29 @@ type CliArgs = object
   .}: string
 
 proc periodicSender(w: Waku): Future[void] {.async.} =
+  let sentListener = MessageSentEvent.listen(
+    proc(event: MessageSentEvent) {.async: (raises: []).} =
+      echo "Message sent with request ID: ",
+        event.requestId, " hash: ", event.messageHash
+  )
+
+  let errorListener = MessageErrorEvent.listen(
+    proc(event: MessageErrorEvent) {.async: (raises: []).} =
+      echo "Message failed to send with request ID: ",
+        event.requestId, " error: ", event.error
+  )
+
+  let propagatedListener = MessagePropagatedEvent.listen(
+    proc(event: MessagePropagatedEvent) {.async: (raises: []).} =
+      echo "Message propagated with request ID: ",
+        event.requestId, " hash: ", event.messageHash
+  )
+
+  defer:
+    MessageSentEvent.dropListener(sentListener)
+    MessageErrorEvent.dropListener(errorListener)
+    MessagePropagatedEvent.dropListener(propagatedListener)
+
   ## Periodically sends a Waku message every 30 seconds
   var counter = 0
   while true:
@@ -20,6 +43,8 @@ proc periodicSender(w: Waku): Future[void] {.async.} =
       echo "Failed to send message: ", error
       quit(QuitFailure)
 
+    echo "Sending message with request ID: ", sendRequestId, " counter: ", counter
+
     counter += 1
     await sleepAsync(30.seconds)
 

tests/api/test_node_conf.nim

@@ -21,6 +21,27 @@ suite "LibWaku Conf - toWakuConf":
       wakuConf.shardingConf.numShardsInCluster == 8
       wakuConf.staticNodes.len == 0
 
+  test "Edge mode configuration":
+    ## Given
+    let protocolsConfig = ProtocolsConfig.init(entryNodes = @[], clusterId = 1)
+
+    let nodeConfig = NodeConfig.init(mode = Edge, protocolsConfig = protocolsConfig)
+
+    ## When
+    let wakuConfRes = toWakuConf(nodeConfig)
+
+    ## Then
+    require wakuConfRes.isOk()
+    let wakuConf = wakuConfRes.get()
+    require wakuConf.validate().isOk()
+    check:
+      wakuConf.relay == false
+      wakuConf.lightPush == false
+      wakuConf.filterServiceConf.isSome() == false
+      wakuConf.storeServiceConf.isSome() == false
+      wakuConf.peerExchangeService == true
+      wakuConf.clusterId == 1
+
   test "Core mode configuration":
     ## Given
     let protocolsConfig = ProtocolsConfig.init(entryNodes = @[], clusterId = 1)

waku/api/api_conf.nim

@@ -133,7 +133,15 @@ proc toWakuConf*(nodeConfig: NodeConfig): Result[WakuConf, string] =
   of Edge:
     # All client side protocols are mounted by default
     # Peer exchange client is always enabled and start_node will start the px loop
-    discard
+    # Metadata is always mounted
+    b.withPeerExchange(true)
+    # switch off all service side protocols and relay
+    b.withRelay(false)
+    b.filterServiceConf.withEnabled(false)
+    b.withLightPush(false)
+    b.storeServiceConf.withEnabled(false)
+    # Leave discv5 and rendezvous for user choice
+
   ## Network Conf
   let protocolsConfig = nodeConfig.protocolsConfig