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Dumpling 🥟

Dumpling is a chrome extension that appears at online checkout, enabling users to spend their crypto instantly through auto-issuance of virtual debit cards on the backend— from cart to complete in under 4 clicks.

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  • UX and UI Design (Figma)
  • ReactJS
  • NodeJS
  • Smart Contract Development (Solidity)
  • Chrome Extension Development
Dumpling.

Overview

Dumpling was started to solve a deeply-ingrained problem within the crypto industry that I have faced ever since I was introduced to Bitcoin in early 2014. I’ve never found an easy, frictionless way to spend crypto without going through numerous steps to convert, swap, or complete a long KYC process along the way. Hence, Dumpling was created.

Metrics / Milestones

  • 3500 Waitlist Signups
  • $35,123 in Transaction volume before getting shut down (due to crypto regulatory issues)
  • Over 6,000+ transactions processed throughout 500+ stores
  • Average checkout time of under 30 seconds
  • Integrated routes with the Lithic API to issue temporary card on-command based on OTC account balance (real-time)

Frontend Work

  • Designed entire UI / UX in Figma
  • Integrated wireframes in ReactJS (chrome extension popup, connect wallet frame, payment frames)
  • Designed “Dumpling cards” which were the prepaid cards generated (Mastercard) for the user’s checkout once they pay the specified amount in their cryptocurrency of choice
  • Injected front end into pages using chrome extension content scripts, css injection, and DOM manipulation
  • Designed transaction loading screen in Figma

Dumpling.

Backend Work

  • Built smart contracts in solidity for payments to our Gnosis wallet
  • Initialized oracle for real-time crypto price data for transaction conversions
  • Integrated routes with the Lithic API to issue temporary card on-command based on OTC account balance (real-time)
  • Created data models for storing and loading user data / DB infrastructure
  • In-extension analytics for user-data (transaction data, wallet data, email)