zk Debit

Welcome to the zk Debit project! This guide will help you set up and test the application. Below, you'll find the structure of the project and detailed steps for running commands.

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ETH GLOBAL https://ethglobal.com/showcase/zkdebit-ypjir

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Project Structure

The project involves 3 main folders in the Testing Poc flow:

1. Shop
   Contains the smart contracts for zk Debit.

2. Bank
   The user interface for interacting with zk Debit.

3. Verifier Contract
   Handles API requests and facilitates off-chain computations.

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Prerequisites

Before running any commands, ensure the following:

• Env: Adding env config following the env.example

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Step-by-Step Testing

1. Clone the Repository

git clone https://github.com/your-repo/zkdebit.git
cd zkdebit

2. Starting Bank server

cd Bank 
npm i --legacy-depedency 
node index.js

3. running shop to request for creating transaction hashed to bank to creating tx_hashed onchain

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Changing some details in app/creating-tx to change hashed payload cause some tx hashed might already exist onchain. Check transaction hashed at this linked function read function check transaction is valid

https://sepolia.etherscan.io/address/0x1fbe30583563e7dd0473aa1d4de8f53483130b17#readContract

open another terminal

cd shop 
npm i --legacy-depedency 
npm run dev

4. verify proof in from zkdebit temporary in verifier-contract folder

cd scripts
node verifyProof.ts