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Digital Cash

Enterprise payment platform using blockchain-inspired architecture for tokenized transactions.

2024

Objective

Build an enterprise payment platform ensuring auditability and transaction integrity at scale.

Technical Challenges

1.Ensuring transaction atomicity across distributed microservices.
2.Implementing double-entry bookkeeping under high concurrency.
3.Processing real-time payments with complete audit trails.

Outcomes & Impact

Achieved 99.99% transaction accuracy with complete audit trail.
Successfully deployed for enterprise client managing mobile recharge services.

Implementation

digital-cash.sol

1// Double-Entry Ledger Transaction
2@Transaction()
3async transfer(from: string, to: string, amount: number) {
4    const debit = await this.ledger.createEntry({
5        account: from,
6        type: 'DEBIT',
7        amount: amount,
8        nonce: await this.getNonce(from)
9    });
10    
11    const credit = await this.ledger.createEntry({
12        account: to,
13        type: 'CREDIT',
14        amount: amount,
15        ref: debit.id
16    });
17    
18    return { debit, credit };
19}

Previous Project

BuilderFi