Discord Chess.com战绩Bot开发求助：无法获取对局数据

我首次开发Discord Bot，想实现一个功能：在Discord频道输入!chessresult user时，返回该用户在Chess.com上的最后一局对局结果。目前Bot已成功连接（能回复文本消息），但无法拉取数据。附上我的代码：

import discord
import requests
from discord.ext import commands

PREFIX = '!'
intents = discord.Intents.all()
bot = commands.Bot(command_prefix=PREFIX, intents=intents)

@bot.event
async def on_ready():
    print('We have logged in as {0.user}'.format(bot))

@bot.event
async def on_message(message):
     if message.content == "hello":
        await message.channel.send('hello')

@bot.command()
async def chessresult(ctx, username: str):
    try:
        # Fetch the recent games of the user from the Chess.com API
        response = requests.get(f'https://api.chess.com/pub/player/{username}/games/archives')
        response.raise_for_status()  # Raise an error for bad responses
        archives = response.json()['archives']

        if not archives:
            await ctx.send(f"No games found for user {username}")
            return

        # Use the most recent archive to get the games
        last_month_url = archives[-1]
        games_response = requests.get(f"{last_month_url}/pgn")
        games_response.raise_for_status()

        # Extract games from the PGN
        games = games_response.text.split("\n\n\n")

        # Extract the result of the most recent game
        last_game = games[-2]  # The last item is empty, so take the second last
        result_line = [line for line in last_game.split("\n") if "Result" in line][0]
        result = result_line.split('"')[1]

        await ctx.send(f"Last game result for {username}: {result}")

    except requests.RequestException as e:
        await ctx.send(f"Error fetching data for {username}: {str(e)}")


bot.run('KEY')

我尝试了多种方法，但进展甚微。这是我第一次编写Bot。

修复方案 #

1. 解决命令被拦截的问题 #

你的on_message事件会阻止命令系统触发，需要在事件末尾添加处理命令的代码：

@bot.event
async def on_message(message):
     if message.content == "hello":
        await message.channel.send('hello')
     await bot.process_commands(message)  # 新增这行，让Bot处理命令

2. 改用更可靠的API接口 #

解析PGN容易出现格式兼容问题，直接调用/games/recent接口获取最近对局的JSON数据，逻辑更稳定：
修改chessresult函数如下：

@bot.command()
async def chessresult(ctx, username: str):
    try:
        # 调用最近对局接口，直接获取JSON格式数据
        response = requests.get(f'https://api.chess.com/pub/player/{username}/games/recent')
        response.raise_for_status()
        games_data = response.json()['games']

        if not games_data:
            await ctx.send(f"{username} 没有找到最近的对局记录")
            return

        # 取最后一局的结果
        last_game = games_data[-1]
        result = last_game['result']
        # 补充对局类型信息，让回复更完整
        game_type = last_game['time_class']
        await ctx.send(f"{username} 的最近一局{game_type}对局结果：{result}")

    except requests.RequestException as e:
        await ctx.send(f"获取{username}的对局数据失败：{str(e)}")

3. 完整修改后的代码 #

import discord
import requests
from discord.ext import commands

PREFIX = '!'
intents = discord.Intents.all()
bot = commands.Bot(command_prefix=PREFIX, intents=intents)

@bot.event
async def on_ready():
    print('We have logged in as {0.user}'.format(bot))

@bot.event
async def on_message(message):
     if message.content == "hello":
        await message.channel.send('hello')
     await bot.process_commands(message)  # 新增处理命令

@bot.command()
async def chessresult(ctx, username: str):
    try:
        response = requests.get(f'https://api.chess.com/pub/player/{username}/games/recent')
        response.raise_for_status()
        games_data = response.json()['games']

        if not games_data:
            await ctx.send(f"{username} 没有找到最近的对局记录")
            return

        last_game = games_data[-1]
        result = last_game['result']
        game_type = last_game['time_class']
        await ctx.send(f"{username} 的最近一局{game_type}对局结果：{result}")

    except requests.RequestException as e:
        await ctx.send(f"获取{username}的对局数据失败：{str(e)}")

bot.run('你的Bot密钥')

内容的提问来源于stack exchange，提问作者twellener