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WalletConnect - Changelog

[Fix] 2025-11-01 - “Connection was established via this URL”

🐛 Fixed issue

When scanning the QR code, the wallet rejected the connection with:

“Connection was established via this URL”

🔍 Root cause

The Rust implementation used optional_namespaces for Qubic, while the JS SDK uses requiredNamespaces. This caused the wallet to reject the proposal.

✅ Changes

1. Namespaces fix (required_namespaces)

File: src/wallet_connect/client.rs

  • moved Qubic from optional → required

2. Cleanup before reconnect

File: src/wallet_connect/client.rs

  • added cleanup_old_state() to clear old listeners/session state before generating a new URI

3. Improved waiting / logs

File: src/wallet_connect/client.rs

  • improved errors and logs around waiting for approval / timeout

4. Updated user-facing instructions

File: src/main.rs

  • clarified that each run generates a fresh URI and stale state is cleaned up

📊 Comparison with the JavaScript version

Aspect JavaScript (qraw-frontend) Rust (SCAPI) Status
Old session cleanup ✅ automatic ✅ automatic aligned
URI generation client.connect() client.connect() aligned
Approval flow await approval() wait_for_connection() equivalent
Timeout handling ✅ ✅ aligned

🧪 Testing

# Run the main program
cargo run

# Or run an example
cargo run --example wallet_connect_basic

📚 Related files

  • WALLETCONNECT_FIX_REQUIRED_NAMESPACES.md - root cause explanation
  • WALLETCONNECT_FIX_RU.md - historical note (now English)

🔗 References

  • JavaScript analog: d:\Work\Qubic\qraw-frontend\src\api\wallet-connect-client.ts

Status: ✅ fixed
Next: test with a real Qubic wallet and a full relay implementation