How do I get Websocket put_packet() to work?

Question

Hi there,
I have a basic script to connect to a web-socket. I successfully connect to the socket & getpacket() function works - however putpacket() is returning 0 every time and the server doesn't seem to be picking it up. Any ideas why getpacket is working, but putpacket isn't? Thanks for checking this out! Appreciate any thoughts.

below is the code:

extends Node

export var websocket_url = "ws://localhost:8080"
var _client = WebSocketClient.new()

func _ready():
_client.connect("connection_closed", self, "_closed")
_client.connect("connection_error", self, "_closed")
_client.connect("connection_established", self, "_connected")
_client.connect("data_received", self, "_on_data")

var err = _client.connect_to_url(websocket_url)
if err != OK:
    print("Unable to connect")
    $Label.text = "Unable to connect"
    set_process(false)

func _closed(was_clean = false):
print("Closed, clean: ", was_clean)
$Label.text = "Closed, clean: " + was_clean
set_process(false)

func _connected(proto = ""):
print("Connected with protocol: ", proto)
$Label.text = "Connected with protocol: " + proto
_client.get_peer(1).put_packet("Test packet".to_utf8())

func _on_data():
var a = _client.get_peer(1).get_packet().get_string_from_utf8()
print("Got data from server: ", _client.get_peer(1).get_packet().get_string_from_utf8())

func _process(delta):
_client.poll()

Answer 1

So I found the answer: I asked a friend and he said the put_packet() function send's BINARY to the server side. I had to program that on the server side to convert the Binary to UTF-8.

Answer 2

You need to set the peer's write mode to Text.

You can do this with:

_client.get_peer(1).set_write_mode(WebSocketPeer.WRITE_MODE_TEXT)