Fix reconnecting
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parent
611ac34389
commit
265f16e768
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@ -1,29 +0,0 @@
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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Debug Nim Project",
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"type": "gdb",
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"request": "launch",
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"program": "${workspaceFolder}/src/client.exe",
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"args": [],
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"stopAtEntry": false,
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"cwd": "${workspaceFolder}",
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"environment": [],
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"externalConsole": false,
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"valuesFormatting": "parseText",
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"MIMode": "gdb",
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"miDebuggerPath": "D:/Code/nim/nim-1.2.0/dist/mingw64/bin/gdb.exe",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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]
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}
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]
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}
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@ -1,16 +0,0 @@
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{
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// See https://go.microsoft.com/fwlink/?LinkId=733558
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// for the documentation about the tasks.json format
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"version": "2.0.0",
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"tasks": [
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{
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"label": "Build Nim Project",
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"type": "shell",
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"command": "nim compile -d:ssl -d:debug --debugger:native ./src/client.nim",
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"group": {
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"kind": "build",
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"isDefault": true
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}
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}
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]
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}
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@ -7,13 +7,13 @@ Memory optimized, simple, and feature rich Discord API wrapper written in Nim.
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</p>
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# NimCord
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A Discord API wrapper written in Nim. Inspired, and created by the author of a memory optimized Discord Library named DisC++.
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A Discord API wrapper written in Nim. Inspired, and created by the author of a memory optimized Discord Library named [DisC++](https://github.com/DisCPP/DisCPP).
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## State
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NimCord is currently in a testing state. If you want to use it, you can but you may encounter errors. If you do encounter errors, create a GitHub issue or join the Discord server.
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## Dependencies
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* [Websocket.nim](https://github.com/niv/websocket.nim)
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* [ws](https://github.com/treeform/ws)
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## Documenation
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You can generate documenation by running `generate_docs.bat/sh` (depending on your system). Documentation is outputted to the `docs` directory.
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@ -30,12 +30,10 @@ You can generate documenation by running `generate_docs.bat/sh` (depending on yo
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* NimCord is not yet available on the official Nimble package repository. To install it, you need to clone this repo and in the project root, run: `nimble install`
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### Note:
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* If you already have Websocket.nim installed, you need to make sure you have version 0.4.1 installed.
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* To compile you must define `ssl` example: `nim compile -d:ssl --run .\examples\basic.nim`
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You can view examples in the [examples](examples) directory.
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# Todo:
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- [x] Finish all REST API calls.
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- [x] Handle all gateway events.
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@ -4,4 +4,4 @@ description = "Discord API wrapper written in Nim. Inspired by DisC++, my othe
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license = "MIT"
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srcDir = "src"
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requires "nim >= 1.2.0", "websocket >= 0.4.0 & <= 0.4.1"
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requires "nim >= 1.2.0", "ws >= 0.4"
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@ -1,4 +1,4 @@
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import websocket, asyncdispatch, json, httpClient, eventdispatcher, strformat
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import ws, asyncdispatch, json, httpClient, eventdispatcher, strformat
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import nimcordutils, cache, clientobjects, strutils, options, presence, log
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import tables
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@ -37,7 +37,7 @@ proc sendGatewayRequest*(shard: Shard, request: JsonNode, msg: string = "") {.as
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else:
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shard.client.log.debug("[SHARD " & $shard.id & "] " & msg)
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await shard.ws.sendText($request)
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await shard.ws.send($request)
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proc handleHeartbeat(shard: Shard) {.async.} =
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while true:
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@ -53,6 +53,10 @@ proc handleHeartbeat(shard: Shard) {.async.} =
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shard.client.log.debug("[SHARD " & $shard.id & "] Waiting " & $shard.heartbeatInterval & " ms until next heartbeat...")
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await sleepAsync(shard.heartbeatInterval)
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if (not shard.heartbeatAcked and not shard.reconnecting):
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shard.client.log.debug("[SHARD " & $shard.id & "] Heartbeat not acked! Reconnecting...")
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asyncCheck shard.reconnectShard()
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proc getIdentifyPacket(shard: Shard): JsonNode =
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result = %* {
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"op": ord(DiscordOpCode.opIdentify),
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@ -71,24 +75,32 @@ proc getIdentifyPacket(shard: Shard): JsonNode =
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proc closeConnection*(shard: Shard, code: int = 1000) {.async.} =
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shard.client.log.warn("[SHARD " & $shard.id & "] Disconnecting with code: " & $code)
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await shard.ws.close(code)
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shard.ws.close()
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proc reconnectShard(shard: Shard) {.async.} =
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proc reconnectShard*(shard: Shard) {.async.} =
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shard.client.log.info("[SHARD " & $shard.id & "] Reconnecting...")
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shard.reconnecting = true
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waitFor shard.ws.close(1000)
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#waitFor shard.ws.close(1000)
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shard.ws = waitFor newAsyncWebsocketClient(shard.client.endpoint[6..shard.client.endpoint.high], Port 443,
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path = "/v=6&encoding=json", true)
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try:
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shard.ws = waitFor newWebSocket(shard.client.endpoint & "/v=6&encoding=json")
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#shard.ws = waitFor newAsyncWebsocketClient(shard.client.endpoint[6..shard.client.endpoint.high], Port 443,
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# path = "/v=6&encoding=json", true)
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except OSError:
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shard.client.log.error("[SHARD " & $shard.id & "] Failed to reconnect to websocket with OSError trying again!")
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asyncCheck shard.reconnectShard()
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except IOError:
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shard.client.log.error("[SHARD " & $shard.id & "] Failed to reconnect to websocket with IOError trying again!")
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asyncCheck shard.reconnectShard()
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shard.reconnecting = false
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shard.heartbeatAcked = true
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# waitFor client.startConnection()
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# Handle discord disconnect. If it detects that we can reconnect, it will.
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proc handleGatewayDisconnect(shard: Shard, error: string) {.async.} =
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let disconnectData = extractCloseData(error)
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shard.client.log.warn("[SHARD " & $shard.id & "] Discord gateway disconnected!")
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#[[let disconnectData = extractCloseData(error)
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shard.client.log.warn("[SHARD " & $shard.id & "] Discord gateway disconnected! Error code: " & $disconnectData.code & ", msg: " & disconnectData.reason)
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@ -102,28 +114,27 @@ proc handleGatewayDisconnect(shard: Shard, error: string) {.async.} =
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shard.client.log.error("[SHARD " & $shard.id & "] The Discord gateway sent a disconnect code that we cannot reconnect to.")
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else:
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if not shard.reconnecting:
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waitFor shard.reconnectShard()
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shard.reconnectShard()
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else:
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shard.client.log.debug("[SHARD " & $shard.id & "] Gateway cannot reconnect due to already reconnecting...")
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shard.client.log.debug("[SHARD " & $shard.id & "] Gateway cannot reconnect due to already reconnecting...")]]#
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#TODO: Reconnecting may be done, just needs testing.
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proc handleWebsocketPacket(shard: Shard) {.async.} =
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while true:
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var packet: tuple[opcode: Opcode, data: string]
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packet = await shard.ws.readData()
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shard.client.log.debug("[SHARD " & $shard.id & "] Received gateway payload: " & $packet.data)
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var packet = await shard.ws.receiveStrPacket()
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shard.client.log.debug("[SHARD " & $shard.id & "] Received gateway payload: " & $packet)
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if packet.opcode == Opcode.Close:
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await shard.handleGatewayDisconnect(packet.data)
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#if packet == Opcode.Close:
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# await shard.handleGatewayDisconnect(packet)
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var json: JsonNode
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# If we fail to parse the json just stop this loop
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try:
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json = parseJson(packet.data)
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json = parseJson(packet)
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except:
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shard.client.log.error("[SHARD " & $shard.id & "] Failed to parse websocket payload: " & $packet.data)
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shard.client.log.error("[SHARD " & $shard.id & "] Failed to parse websocket payload: " & $packet)
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continue
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if json.contains("s"):
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@ -132,7 +143,7 @@ proc handleWebsocketPacket(shard: Shard) {.async.} =
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case json["op"].getInt()
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of ord(DiscordOpCode.opHello):
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if shard.reconnecting:
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shard.client.log.info("[SHARD " & $shard.id & "Reconnected!")
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shard.client.log.info("[SHARD " & $shard.id & "] Reconnected!")
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shard.reconnecting = false
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let resume = %* {
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@ -149,8 +160,10 @@ proc handleWebsocketPacket(shard: Shard) {.async.} =
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shard.heartbeatInterval = json["d"]["heartbeat_interval"].getInt()
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await shard.sendGatewayRequest(shard.getIdentifyPacket())
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asyncCheck shard.handleHeartbeat()
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shard.heartbeatAcked = true
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# Don't start a new
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if (not shard.isHandlingHeartbeat):
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asyncCheck shard.handleHeartbeat()
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shard.heartbeatAcked = true
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of ord(DiscordOpCode.opHeartbeatAck):
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shard.heartbeatAcked = true
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of ord(DiscordOpCode.opDispatch):
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@ -208,8 +221,7 @@ proc startConnection*(client: DiscordClient, shardAmount: int = 1) {.async.} =
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var shard = newShard(index, client)
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client.shards.add(shard)
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shard.ws = await newAsyncWebsocketClient(url[6..url.high], Port 443,
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path = "/v=6&encoding=json", true)
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shard.ws = await newWebSocket(shard.client.endpoint & "/v=6&encoding=json")
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asyncCheck shard.handleWebsocketPacket()
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@ -219,8 +231,7 @@ proc startConnection*(client: DiscordClient, shardAmount: int = 1) {.async.} =
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var shard = newShard(shardCount - 1, client)
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client.shards.add(shard)
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shard.ws = await newAsyncWebsocketClient(url[6..url.high], Port 443,
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path = "/v=6&encoding=json", true)
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shard.ws = await newWebSocket(shard.client.endpoint & "/v=6&encoding=json")
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asyncCheck shard.handleWebsocketPacket()
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@ -1,4 +1,4 @@
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import websocket, cache, user, log
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import ws, cache, user, log
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type
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DiscordClient* = ref object
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@ -15,9 +15,10 @@ type
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Shard* = ref object
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id*: int
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client*: DiscordClient
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ws*: AsyncWebSocket
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ws*: WebSocket
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heartbeatInterval*: int
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heartbeatAcked*: bool
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lastSequence*: int
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reconnecting*: bool
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sessionID*: string
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isHandlingHeartbeat*: bool
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