Haveno Dart SDK: Full gRPC Client for Mobile

Haveno's existing client library (haveno-ts) was written in TypeScript — fine for web, but a dead end for native mobile development. The Haveno team wanted to expand to mobile platforms, but lacked the Dart/Flutter expertise to port their API layer. No one on the team had experience with Dart, let alone the complexity of compiling Protobuf schemas into a production-ready Dart SDK.

I built a complete Dart/Flutter client SDK from scratch, compiled directly from Haveno's official Java/C++ core Protobuf schemas (pb.proto and grpc.proto). The SDK wraps the raw, low-level gRPC Protocol Buffer definitions into a clean, developer-friendly unified architecture.

Full Protobuf Coverage — compiled directly from the official Haveno core schemas

15 gRPC Micro-Service Clients unified under a single HavenoClient entry point:

Async Stream Support — built for reactive state management in Flutter apps

Linter-Shielded — pre-configured optimization maps for clean builds with zero warnings

import 'package:haveno_client_dart/haveno_client_dart.dart'; void main() async { final client = HavenoClient(host: 'localhost', port: 9092); final versionReply = await client.getVersion(); print('Haveno Daemon Version: ${versionReply.version}'); final balancesReply = await client.getBalances(); print('Available Balance: ${balancesReply.balances}'); await client.disconnect(); }

A production-ready Dart SDK that gives the Haveno ecosystem a direct path from TypeScript web clients to native Flutter mobile applications. The package supports all 15 core Haveno daemon services through a single, cohesive API — ready to drop into any Dart or Flutter project via pubspec.yaml.