Telegram Stars Checkout and Fulfillment Guard
Platon Shchukyn
Telegram Stars Checkout and Fulfillment Guard
Built a terms-first Telegram Stars checkout for an original sticker product. The workflow verifies currency, amount, invoice payload, product, and Telegram charge ID before fulfillment, and prevents the same payment from being fulfilled twice.
Scope
• Terms shown before invoice
• XTR currency and amount validation
• Idempotent fulfillment
• Local support workflow
Evidence boundary
The bot is authenticated and running. No real successful_payment, delivery, or revenue is claimed.
Tools: Telegram Bot API, Node.js, JavaScript, automated testing.
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Posted Aug 13, 2026
Built a terms-first Telegram Stars checkout with XTR validation, idempotent fulfillment, and local support. Bot tested; no payment or revenue claim.
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