如何用aiohttp开发Reddit Discord机器人并添加帖子访问链接？

Hey there! Nice start on your Discord bot's meme feature—adding a link to the original Reddit post is a great touch that users will appreciate. Let's adjust your existing code to make that happen smoothly.

First, let's break down what we need to do:

• Grab the permalink of the Reddit post (this is the relative URL like /r/memes/comments/xyz123/funny_meme/)
• Combine it with Reddit's base URL to get the full, clickable link
• Add this link to your Discord Embed—either as a clickable title, a dedicated field, or both

Here's the updated version of your code with these changes:

import discord
import aiohttp
import random

async def meme(ctx):
    embed = discord.Embed(color=0xff0000)
    async with aiohttp.ClientSession() as cs:
        async with cs.get('https://www.reddit.com/r/memes/new.json?sort=hot') as r:
            res = await r.json()
            # Pull a random post from the hot feed
            post_data = res['data']['children'][random.randint(0, 25)]['data']
            
            # Build the full Reddit post link
            post_permalink = post_data['permalink']
            full_post_url = f"https://reddit.com{post_permalink}"
            
            # Customize the embed with clickable title, post content, and image
            embed.title = f"[Hot Post from r/memes]({full_post_url})"
            embed.description = post_data['title']  # Show the original post title
            embed.set_image(url=post_data['url'])
    
    await ctx.send(embed=embed)

Key Changes Explained: #

• Storing post data: We save the selected post's data to post_data first, which makes the code cleaner and avoids repeated nested indexing.
• Full post link: The permalink field from Reddit's API gives us a relative path—we just prepend https://reddit.com to get a working, clickable URL.
• Clickable embed title: By wrapping the title text in [] and the URL in (), Discord automatically turns it into a clickable link.
• Post title as description: Adding the original Reddit post title helps users understand the context of the meme before clicking through.

Bonus: Make It More Robust #

Right now, your code might pull non-image posts (like videos or text posts). To fix that, we can filter for only image posts:

import discord
import aiohttp
import random

async def meme(ctx):
    embed = discord.Embed(color=0xff0000)
    async with aiohttp.ClientSession() as cs:
        async with cs.get('https://www.reddit.com/r/memes/new.json?sort=hot') as r:
            res = await r.json()
            # Filter to only include image posts
            image_posts = [
                child['data'] for child in res['data']['children']
                if child['data'].get('post_hint') == 'image'
            ]
            
            if not image_posts:
                await ctx.send("Oops, no image posts found in r/memes right now!")
                return
            
            # Pick a random image post
            post_data = random.choice(image_posts)
            full_post_url = f"https://reddit.com{post_data['permalink']}"
            
            embed.title = f"[Hot Image Post from r/memes]({full_post_url})"
            embed.description = post_data['title']
            embed.set_image(url=post_data['url'])
    
    await ctx.send(embed=embed)

This way, you'll only send valid image posts to your Discord server, avoiding broken embeds or non-image content.

内容的提问来源于stack exchange，提问作者Vorato