Expert in Developing Custom Telegram Marketplace Bots

A platform for authors that works entirely through Telegram. Authors can sell photos/videos, provide access to private channels, create collections, and receive payments.

What needs to be implemented:

WebApp:

  • Authorization via Telegram
  • Author's panel

       - Balance, products, accesses, collections, receipts

       - Creating products, uploading previews

       - Generating receipts (with the option to download CSV/PDF)

       - Withdrawal requests

       - Publishing to a channel or creating a sharing link

       - Deleting products / collections / accesses

Telegram bot:

  • Uploading main media for products (after creation in WebApp)
  • Confirmation by the author
  • Transfer to moderator
  • Status (processing / confirmed)
  • Publishing product in Telegram channel on behalf of the bot
  • Sending full-size photos to the buyer after payment
  • Notifications about withdrawal requests

Backend:

  • Node.js + PostgreSQL
  • Authorization via Telegram
  • CRUD API for products, orders, collections, accesses
  • Integration with Interkassa
  • Processing payment callbacks
  • Generating receipts
  • Product moderation
  • Withdrawal requests

Purchase process:

  • User opens WebApp → pays → sees preview → clicks “Get in Telegram” → bot sends photo/video.

Receipts:

  • Automatically generated after each payment
  • Contain date, time, amount, fee, author's income
  • Available in WebApp with export options

Tech stack:

  • Node.js, Express, PostgreSQL
  • Telegram WebApp (HTML/CSS/JS)
  • Telegram Bot API
  • Hosting: Scaleway
  • Payments: Interkassa (ability to add others)

Important:

  • Minimum author age — 18+
  • Possibility of NSFW (with appropriate labels)
  • Content stored via Telegram (file_id)
  • Author, after creating a product in WebApp, switches to bot to upload content
  • Publication can be via Telegram or link
  • Moderation interface

What is already available:

  • Complete technical task
  • Layouts (SVG, PDF, Figma)
  • Telegram bot token

Open to your architectural proposals

Please send:

  • Your approach to implementation
  • Estimated timelines + budget
Terms of work
500
ETH, USDT, TIME
+53

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