facebook-page-manager

Facebook Page Manager Agent

Builds a standalone Node.js agent that manages a Facebook page: AI-drafted content, scheduled posting cadence, comment auto-replies, analytics, and monetization readiness tracking, controllable from Telegram.

When to use

• User asks to "build a Facebook agent / automate a Facebook page / grow a page"
• User wants page management, scheduling, or comment auto-replies
• User wants monetization tracking or strategy for a page (Reels watch time, in-stream ads, subscribers)

Required tools / APIs

• Facebook Graph API (free): page posting, scheduling, comments, insights. Requires a Facebook Developer app + user token.
• Local LLM via ollama (free, optional): content drafting. Any OpenAI-compatible endpoint works.
• Telegraf (free): optional Telegram control bot: npm install telegraf
• node-cron (free): scheduler tick: npm install node-cron

npm install telegraf node-cron dotenv

Skills

1. Set up credentials (the 90% blocker)

1. Create a developer app at https://developers.facebook.com → My Apps → Create App → Business type. Add the Facebook Login product.
2. Grant the user token these permissions (work for pages you administer, no app review needed): pages_show_list, pages_manage_posts, pages_read_engagement, pages_manage_engagement, read_insights.
3. Get a token in the Graph API Explorer (select your app → permissions → Generate Access Token).
4. Exchange for a long-lived token (60 days) in a browser:

   https://graph.facebook.com/v21.0/oauth/access_token?grant_type=fb_exchange_token&client_id=APP_ID&client_secret=APP_SECRET&fb_exchange_token=USER_TOKEN
   

5. Page ID is under the page's About tab (or resolve via GET /me/accounts).

2. Graph API client (Node.js)

const BASE = "https://graph.facebook.com/v21.0";
const TOKEN = process.env.FB_USER_TOKEN;

async function graph(path, params = {}, method = "GET") {
  const url = new URL(`${BASE}/${path}`);
  if (method === "GET") Object.entries(params).forEach(([k, v]) => url.searchParams.set(k, v));
  url.searchParams.set("access_token", TOKEN);
  const opts = { method };
  if (method !== "GET") {
    opts.headers = { "Content-Type": "application/json" };
    opts.body = JSON.stringify({ ...params, access_token: TOKEN });
  }
  const res = await fetch(url, opts);
  const data = await res.json();
  if (data.error) throw new Error(`Graph API ${data.error.code}: ${data.error.message}`);
  return data;
}

// list pages
const pages = await graph("me/accounts", { fields: "id,name,access_token" });
// post text
await graph("PAGE_ID/feed", { message: "hello" }, "POST");
// schedule (published:false + unix seconds)
await graph("PAGE_ID/feed", { message: "later", published: false, scheduled_publish_time: 1786500000 }, "POST");
// comment replies (needs pages_manage_engagement)
await graph("COMMENT_ID/replies", { message: "Thanks!" }, "POST");
// insights (cumulative day-period values)
await graph("PAGE_ID/insights", { metric: "page_fans,page_impressions,page_engaged_users,page_video_views", period: "day" });