Post top Reddit content to Telegram with GPT-4.1-mini and human approval

How it works

• A weekly cron triggers the flow
• The Reddit node fetches top posts from a +-separated list of subreddits you define
• A code node normalises each item into {url, title, publishedAt} while preserving Reddit-specific fields like ups, upvote_ratio, and num_comments
• A deduplication step drops repeats by normalised URL and then by title
• A scoring step ranks candidates by ups x upvote_ratio and passes the winner plus the top 10 candidates to GPT-4
• A LangChain agent writes three platform-specific drafts in a single call: a short Telegram blurb with a link
• Gmail sends you one email containing a draft with APPROVE / DECLINE buttons (sendAndWait, double-confirm)
• On APPROVE, a Gate node fans out to three parallel branches that post to Telegram, and each result is appended to its own tab in Google Sheets
• On DECLINE, reviewer feedback is injected into the agent and it picks another topic to retry

Set up steps

• Setup takes about 15 to 20 minutes
• Connect a Reddit OAuth2 credential with read access
• Connect an OpenAI API credential (defaults to gpt-4.1-mini; swap to any model you prefer)
• Connect a Gmail OAuth2 credential for the approval email and set sendTo to your own address
• Connect a Telegram Bot API credential and replace @your_telegram_channel in the Post to Telegram node with your real channel handle (your bot must be an admin of the channel)
• Connect a Google Sheets OAuth2 credential and pick your destination spreadsheet + correct tab in each of the four Google Sheets nodes
• Edit the default subreddit list inside the Reddit node to match your niche
• Optional: adjust the GPT prompt inside the Social Posts Generator to match your tone per platform
• Detailed per-step notes live inside the workflow as sticky notes