backend/app/cron_reddit_tracker.py
2024-07-27 16:24:25 +02:00

87 lines
2.7 KiB
Python

import praw
import json
from datetime import datetime
import os
from dotenv import load_dotenv
import time
load_dotenv()
client_key = os.getenv('REDDIT_API_KEY')
client_secret = os.getenv('REDDIT_API_SECRET')
user_agent = os.getenv('REDDIT_USER_AGENT')
# File path for the JSON data
file_path = 'json/reddit-tracker/wallstreetbets/data.json'
# Ensure the directory exists
os.makedirs(os.path.dirname(file_path), exist_ok=True)
# Function to load existing data
def load_existing_data():
if os.path.exists(file_path):
with open(file_path, 'r', encoding='utf-8') as f:
return json.load(f)
return []
# Function to save data
def save_data(data):
with open(file_path, 'w', encoding='utf-8') as f:
json.dump(data, f, ensure_ascii=False, indent=4)
# Initialize Reddit instance
reddit = praw.Reddit(
client_id=client_key,
client_secret=client_secret,
user_agent=user_agent
)
# Load existing data
existing_data = load_existing_data()
# Create a dictionary of existing posts for faster lookup and update
existing_posts = {post['id']: post for post in existing_data}
# Flag to check if any data was added or updated
data_changed = False
# Get the subreddit
subreddit = reddit.subreddit("wallstreetbets")
# Iterate through new submissions
for submission in subreddit.new(limit=1000):
post_id = submission.id
# Check if this post is already in our data
if post_id in existing_posts:
# Update existing post
existing_posts[post_id]['upvote_ratio'] = submission.upvote_ratio
existing_posts[post_id]['num_comments'] = submission.num_comments
data_changed = True
else:
# Extract the required fields for new post
extracted_post = {
"id": post_id,
"permalink": submission.permalink,
"title": submission.title,
"selftext": submission.selftext,
"created_utc": int(submission.created_utc),
"upvote_ratio": submission.upvote_ratio,
"num_comments": submission.num_comments,
"link_flair_text": submission.link_flair_text,
"author": str(submission.author),
}
# Add the new post to the existing data
existing_posts[post_id] = extracted_post
data_changed = True
if data_changed:
# Convert the dictionary back to a list and sort by created_utc
updated_data = list(existing_posts.values())
updated_data.sort(key=lambda x: x['created_utc'], reverse=True)
# Save the updated data
save_data(updated_data)
print(f"Data updated and saved to {file_path}")
else:
print("No new data to add or update.")