Björn Ritzl 24bb291c72
Added status code to callback when the server closes the connection (#45)
* Added WebSocket close code to callback

Also added message and code for HTML5

* Unify disconnect handling for wslay and html5
2022-06-23 20:52:46 +02:00

60 lines
1.7 KiB
Markdown

# Defold websocket extension
[![Build Status](https://github.com/defold/extension-websocket/workflows/Build%20with%20bob/badge.svg)](https://github.com/defold/extension-websocket/actions)
## Installation
To use this library in your Defold project, add the following URL to your `game.project` dependencies:
https://github.com/defold/extension-websocket/archive/master.zip
We recommend using a link to a zip file of a [specific release](https://github.com/defold/extension-websocket/releases).
## API reference
https://defold.com/extension-websocket/api/
## Debugging
In order to make it easier to debug this extension, we provide a `game.project` setting `websocket.debug` (edit `game.project` as text and add):
```
[websocket]
debug = level
```
Set it to:
* `0` to disable debugging (i.e. no debug output).
* `1` to display state changes.
* `2` to display the messages sent and received.
## External resources
To verify that your websocket server works, you can test it with some tools.
* [websocat](https://github.com/vi/websocat)
Or, you can test your server on this web page:
* https://www.websocket.org/echo.html
To monitor all the packets sent to/from the client/server, you can use e.g.
* [Wireshark](https://www.wireshark.org)
For command line debugging, there's
* tcpdump: `sudo tcpdump -X -s0 -ilo0 port 8080 ` (example for local ws:// connection)
* tcpdump: `sudo tcpdump -X -s0 host echo.websocket.org` (Monitors packets to/from echo.websocket.org)
## Credits
This extension makes use of the C library WSlay by @tatsuhiro-t:
* https://github.com/tatsuhiro-t/wslay
The test server used by the example:
* https://www.lob.com/blog/websocket-org-is-down-here-is-an-alternative