Add digital wallet with transaction tracking and data collection

[Copilot]

Implements a digital wallet system that operates across online spaces and collects interaction data.

Core Implementation

• Wallet Module (src/wallet.ts): WalletManager class handling wallet CRUD, transactions (credit/debit), and data collection with KV persistence
• API Routes (src/routes.ts): 7 RESTful endpoints for wallet operations with input validation and error handling
• Proxy Integration (src/index.ts): Middleware intercepts requests with X-Wallet-Id header to automatically log API interactions

Key Features

• Transaction validation: Positive amounts, type checking, insufficient funds protection
• Error resilience: Try-catch blocks around all JSON.parse operations to handle data corruption
• Storage: Cloudflare KV integration with graceful fallback when unconfigured
• Backward compatible: Existing Sim API proxy functionality unchanged

API Surface

POST   /wallet/create                      // Create wallet
GET    /wallet/:id                         // Get wallet details
POST   /wallet/:id/transaction             // Record transaction
GET    /wallet/:id/transactions            // List transactions
POST   /wallet/:id/collect-data            // Collect custom data
GET    /wallet/:id/collected-data          // Get collected data
GET    /wallet/list                        // List all wallets

Usage

// Create wallet
const { wallet } = await fetch('/wallet/create', {
  method: 'POST',
  body: JSON.stringify({ currency: 'USD', initialBalance: 100 })
}).then(r => r.json());

// Auto-collect data on proxy requests
fetch('/api/endpoint', { 
  headers: { 'X-Wallet-Id': wallet.id } 
});

Configuration

Requires KV namespace binding for persistence:

[[kv_namespaces]]
binding = "WALLET_KV"
id = "your-kv-namespace-id"

Without KV, wallet creation returns objects but data doesn't persist across requests.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• api.sim.dune.com
  • Triggering command: /home/REDACTED/work/sim-proxy/sim-proxy/node_modules/@cloudflare/workerd-linux-64/bin/workerd serve --binary --experimental --socket-addr=entry=127.0.0.1:0 --external-addr=loopback=127.0.0.1:44141 --control-fd=3 - --inspector-addr=localhost:0 (dns block)
• sparrow.cloudflare.com
  • Triggering command: /usr/local/bin/node --no-warnings --experimental-vm-modules /home/REDACTED/work/sim-proxy/sim-proxy/node_modules/wrangler/wrangler-dist/cli.js dev src/index.ts --local (dns block)
• workers.cloudflare.com
  • Triggering command: /usr/local/bin/node --no-warnings --experimental-vm-modules /home/REDACTED/work/sim-proxy/sim-proxy/node_modules/wrangler/wrangler-dist/cli.js dev src/index.ts --local (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

build digital wallet in every online space , can collect data

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	sim-proxy	ca320b2	Commit Preview URL	Nov 01 2025, 10:01 PM