websocket.nim which I used first started giving weird errors with packets
merging into each other and SSL failing. Then I switched to ws, but didn't want
to change my code too much, so I just made a wrapper over both.
import ../common # defines websocketBackend
when websocketBackend == "ws":
import pkg/ws as pkgws
export pkgws
template isClosed*(ws: WebSocket): bool =
ws.readyState == ReadyState.Closed
template readData*(ws: WebSocket): untyped =
ws.receivePacket
proc extractCloseData*(data: string): tuple[code: int, reason: string] =
## A way to get the close code and reason out of the data of a Close
opcode.
var data = data
result.code =
if data.len >= 2:
(data[0].int shl 8) or data[1].int
else:
0
result.reason = if data.len > 2: data[2..^1] else: ""
elif websocketBackend == "websocket":
import websocket, asyncnet
export websocket except close
type WebSocket* = AsyncWebSocket
template newWebSocket*(args: varargs[untyped]): untyped =
newAsyncWebsocketClient(args)
template send*(ws: WebSocket, text: string): untyped =
ws.sendText(text)
template isClosed*(ws: WebSocket): bool =
bind isClosed
asyncnet.isClosed(ws.sock)
template close*(ws: WebSocket) =
discard websocket.close(ws)
elif websocketBackend == "jswebsockets":
{.error: "jswebsockets not yet supported".}
else:
{.error: "unknown websocket backend " & websocketBackend.}
Run
nim-websock looks interesting for the reason that it doesn't use stdlib
httpclient, but I haven't really needed to try it yet.
> Don't think there a Nim wrapper for it:
> <https://nng.nanomsg.org/man/v1.3.2/nng.7.html>
There is. <https://github.com/def-/nim-nanomsg>
