如何从DM中的ID到JavaScript中的不和谐bot修复机器人

Question

我正在编码一个不一致的bot，如果在服务器中运行该bot可以正常工作，但是我想添加一些在DM中也可以使用的命令，我有一些为每个服务器设置前缀的代码，当我运行bot并在DM中尝试命令时它会产生错误，因为它正在寻找DM没有的公会ID，我该如何解决。

//the code from line index.js:63:30 in the error message

if(message.author.bot) return;

let prefixes = JSON.parse(fs.readFileSync("./prefixes.json", "utf8"));
if(!prefixes[message.guild.id]){
  prefixes[message.guild.id] = {
    prefixes: botconfig.prefix
  };
}

我曾尝试使用if语句，但是当我在DM中运行命令时，该命令仍然无法正常工作，但不会产生任何错误。

bot.on("message", async message => {
  if (message.channel.type === "dm") {
      let prefix = "!";
} else (message.guild) {
      let prefixes = JSON.parse(fs.readFileSync("./prefixes.json", "utf8"));
  if(!prefixes[message.guild.id]){
    prefixes[message.guild.id] = {
      prefixes: botconfig.prefix
    };
  let prefix = prefixes[message.guild.id].prefixes;
  if(!message.content.startsWith(prefix)) return;

    let messageArray = message.content.split(" ");
  let cmd = messageArray[0];
  let args = messageArray.slice(1);

  let commandfile = bot.commands.get(cmd.slice(prefix.length));
  if(commandfile) commandfile.run(bot,message,args);
  } 
}
}

下面是错误越来越多，它指向我代码中的第63行，这是我上面发布的代码

    at Client.bot.on (C:\Users\Milan\Desktop\episode-18-code\index.js:63:30)
    at Client.emit (events.js:198:13)
    at MessageCreateHandler.handle (C:\Users\Milan\Desktop\episode-18-code\node_modules\discord.js\src\client\websocket\packets\handlers\MessageCreate.js:9:34)
    at WebSocketPacketManager.handle (C:\Users\Milan\Desktop\episode-18-code\node_modules\discord.js\src\client\websocket\packets\WebSocketPacketManager.js:105:65)
    at WebSocketConnection.onPacket (C:\Users\Milan\Desktop\episode-18-code\node_modules\discord.js\src\client\websocket\WebSocketConnection.js:333:35)
    at WebSocketConnection.onMessage (C:\Users\Milan\Desktop\episode-18-code\node_modules\discord.js\src\client\websocket\WebSocketConnection.js:296:17)
    at WebSocket.onMessage (C:\Users\Milan\Desktop\episode-18-code\node_modules\ws\lib\event-target.js:120:16)
    at WebSocket.emit (events.js:198:13)
    at Receiver.receiverOnMessage (C:\Users\Milan\Desktop\episode-18-code\node_modules\ws\lib\websocket.js:789:20)
    at Receiver.emit (events.js:198:13)
(node:2912) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:2912) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.```

Answer 1

您可以根据频道类型来运行某些内容。

if (message.channel.type === 'text') {
  // Server text channel commands
}

if (message.channel.type === 'dm') {
  // DM channel commands
}

根据文档 ，所有类型的渠道

• dm直接消息通道
• group群组DM频道
• text服务器文本通道
• voice服务器语音通道
• category服务器类别频道
• news服务器新闻频道
• store服务器商店频道

Answer 2

您可以使用

if(message.channel.type === 'dm') {
    let prefix = 'bot main prefix'
}
else if(message.channel.type === 'guild') {
      let prefixes = JSON.parse(fs.readFileSync("./prefixes.json", "utf8"));
}