Discord Bot: Handling Real-Time Chat Parsing Without Blocking Async Operations

I’m building a Discord bot that grabs messages from a live chat and posts them to a Discord channel. I want the bot to do other stuff too, but I’m stuck. Right now, it uses a while loop to wait for the right message. This is causing problems because it’s blocking other Discord features from working.

Here’s a simplified version of what I’m doing:

def parse_chat():
    # Code to receive and process messages
    return processed_message

def message_loop():
    while True:
        chat_msg = parse_chat()
        if chat_msg:
            return chat_msg
    return ''

async def main():
    while True:
        msg = await message_loop()
        if msg:
            await channel.send(msg)

client.run(TOKEN)

I tried making parse_chat() and message_loop() async, but it’s still blocking. I’m new to async and Discord coding, so I’m not sure how to make this work with client.run(TOKEN). Any ideas on how to keep the chat parser running without blocking other bot functions?

I’ve dealt with similar challenges in my Discord bot projects. The issue stems from blocking operations in the main event loop. A more efficient approach is to use asynchronous programming techniques.

Consider implementing a producer-consumer pattern using asyncio.Queue. This allows you to separate the message parsing and sending operations:

import asyncio

queue = asyncio.Queue()

async def parse_chat():
    while True:
        # Async chat parsing logic here
        message = await get_message()  # Replace with your actual method
        await queue.put(message)
        await asyncio.sleep(0.1)

async def send_messages():
    while True:
        message = await queue.get()
        await channel.send(message)
        queue.task_done()

async def setup():
    client.loop.create_task(parse_chat())
    client.loop.create_task(send_messages())

client.run(TOKEN)

This approach ensures your bot remains responsive to other events while efficiently handling chat parsing and message sending.

hey alex, i had a similar problem. try using asyncio.gather() to run multiple coroutines concurrently. something like:

async def main():
await asyncio.gather(
message_loop(),
other_bot_function1(),
other_bot_function2()
)

client.run(TOKEN)

this way your message loop wont block other functions. hope it helps!

I faced a similar issue when developing a Twitch chat bot. The key is to leverage Python’s asyncio library and Discord.py’s event-driven architecture.

Instead of using a while loop, you can create a background task that runs concurrently with your bot’s main event loop. Here’s a rough outline of how you could restructure your code:

import asyncio

async def parse_chat():
    # Async version of your chat parsing logic
    await asyncio.sleep(0.1)  # Prevent CPU hogging
    return processed_message

async def message_handler():
    while True:
        chat_msg = await parse_chat()
        if chat_msg:
            await channel.send(chat_msg)
        await asyncio.sleep(0.1)  # Small delay to prevent spam

@client.event
async def on_ready():
    client.loop.create_task(message_handler())

client.run(TOKEN)

This approach allows your chat parsing to run continuously without blocking other bot functions. The asyncio.sleep() calls help prevent excessive CPU usage and rate limiting. Remember to handle exceptions and implement proper error logging for production use.