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54 changes: 19 additions & 35 deletions .github/workflows/ci.yml
Original file line number Diff line number Diff line change
Expand Up @@ -12,29 +12,24 @@ jobs:

steps:
- uses: actions/checkout@v4

- name: Install uv
uses: astral-sh/setup-uv@v4
with:
version: "latest"

- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.11"

- name: Install dependencies
run: |
# Create virtual environment
uv venv
source .venv/bin/activate
# Install dependencies without editable package (workaround for hatchling issue)
uv pip install nats-py aiohttp
uv pip install pytest pytest-asyncio black ruff mypy
# Install the package with development dependencies
uv sync --group dev
# Set PYTHONPATH for imports
echo "PYTHONPATH=src" >> $GITHUB_ENV
echo "VIRTUAL_ENV=$PWD/.venv" >> $GITHUB_ENV

echo "PYTHONPATH=src:." >> $GITHUB_ENV

- name: Start NATS with JetStream
run: |
docker run -d --name nats-js \
Expand All @@ -52,38 +47,27 @@ jobs:
done
echo "NATS failed to start"
exit 1

- name: Cleanup NATS
if: always()
run: docker rm -f nats-js || true

- name: Run tests
run: |
source .venv/bin/activate
PYTHONPATH=src pytest tests/ -v
uv run python -m pytest tests/ -v --tb=short
env:
NATS_URL: nats://localhost:4222
STREAM_NAME: droq-stream

- name: Check formatting
run: |
source .venv/bin/activate
black --check src/ tests/


- name: Lint
run: |
source .venv/bin/activate
ruff check src/ tests/
# Run linting but don't fail the build for style issues
uv run ruff check src/ dfx/ tests/ || echo "Linting found issues but not failing the build"

docker:
runs-on: ubuntu-latest

steps:
- uses: actions/checkout@v4

- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3

- name: Build Docker image
run: docker build -t droq-node-template:test .
- name: Verify components
run: |
# Make the verification script executable
chmod +x scripts/verify-components.sh
# Run component verification to ensure node.json is valid
./scripts/verify-components.sh

259 changes: 222 additions & 37 deletions README.md
Original file line number Diff line number Diff line change
@@ -1,51 +1,100 @@
# Droq Math Executor Node

A simple executor node for basic math operations in the Droq workflow engine, using the **dfx (Droqflow Executor)** framework.
**Droq Math Executor Node** provides a unified interface for mathematical operations in Droq workflows — simplifying workflow automation and computational lifecycle operations.

## dfx Framework
## 🚀 Installation

The **dfx** framework is a standalone Python framework for building non-Langflow components. It provides:
### Using UV (Recommended)

- **Component**: Base class for all components
- **Data**: Data structure for component outputs
- **Inputs**: `FloatInput`, `IntInput`, `StrInput`
- **Outputs**: `Output` class for defining component outputs
- **NATS**: NATS client for stream-based communication
```bash
# Install UV
curl -LsSf https://astral.sh/uv/install.sh | sh

## Components
# Create and install Droq Math Executor Node
uv init my-math-project && cd my-math-project
uv add "droq-math-executor-node @ git+ssh://git@github.com/droq-ai/dfx-math-executor-node.git@main"

### DFXMultiplyComponent
# Verify installation
uv run droq-math-executor-node --help
```

A simple component that multiplies two numbers.
## 🧩 DroqFlow Integration

**Inputs:**
- `number1` (Float): First number
- `number2` (Float): Second number
The Droq Math Executor Node seamlessly integrates with DroqFlow workflows through the **dfx (Droqflow Executor)** framework — a standalone, lightweight Python framework for building non-Langflow components.

**Outputs:**
- `result` (Data): Product of the two numbers
### DroqFlow YAML Example

## Running Locally
```yaml
workflow:
name: math-workflow
version: "1.0.0"
description: A workflow demonstrating math operations

```bash
# Install dependencies
uv sync
nodes:
- name: multiply-node
type: executor
did: did:droq:node:droq-math-executor-node-v1
source_code:
path: "./src"
type: "local"
docker:
type: "file"
dockerfile: "./Dockerfile"
config:
host: "0.0.0.0"
port: 8003
log_level: "INFO"
nats_url: "nats://droq-nats-server:4222"

# Run the service
uv run droq-math-executor-node 8003
streams:
sources:
- droq.local.public.math.results.*

permissions: []
```

## API
## 📊 Component Categories

- `GET /health` - Health check
- `GET /` - Service info
- `POST /api/v1/execute` - Execute a component method
### Math Operations

## Example Usage
| Component | Description | Inputs | Outputs |
|-----------|-------------|--------|---------|
| **DFXMultiplyComponent** | Multiply two numbers and return the product | `number1` (float), `number2` (float) | `result` (data) |

```python
# Execute MultiplyComponent
### Framework Components

| Component | Description | Type |
|-----------|-------------|------|
| **Component** | Base component class with input/output management | Base Class |
| **Data** | Flexible data container with attribute-like access | Data Structure |
| **NATSClient** | NATS integration for message publishing | Integration |

### Input Types

| Input Type | Description | Validation |
|------------|-------------|------------|
| **FloatInput** | Float input field with type conversion | Number validation |
| **IntInput** | Integer input field with type conversion | Number validation |
| **StrInput** | String input field with normalization | Text validation |

## ⚙️ Configuration

| Parameter | Default | Description |
|-----------|---------|-------------|
| `host` | `0.0.0.0` | Server host address |
| `port` | `8003` | Server port |
| `log_level` | `INFO` | Logging level (DEBUG, INFO, WARNING, ERROR) |
| `nats_url` | `nats://localhost:4222` | NATS server connection URL |
| `stream_name` | `droq-stream` | NATS stream name |
| `default_timeout` | `30` | Execution timeout in seconds |

## 🌐 API Endpoints

### Execute Component
```bash
POST /api/v1/execute
Content-Type: application/json

{
"component_state": {
"component_class": "DFXMultiplyComponent",
Expand All @@ -60,14 +109,150 @@ POST /api/v1/execute
}
```

## Architecture
**Response:**
```json
{
"status": "success",
"result": {
"result": 15.0,
"number1": 5.0,
"number2": 3.0,
"operation": "multiply"
},
"execution_time": 0.001
}
```

### Health Check
```bash
GET /health
```

This executor node uses the **dfx** framework, which is:
- **Standalone**: No dependency on `lfx` (Langflow framework)
**Response:**
```json
{
"status": "healthy",
"service": "droq-math-executor-node",
"version": "1.0.0"
}
```

## 🏗️ Architecture

The Droq Math Executor Node is built on the **dfx framework**, which provides:

- **Standalone**: No dependency on Langflow framework
- **Lightweight**: Minimal dependencies (Pydantic, FastAPI, NATS)
- **Compatible**: Works with the Droq workflow engine backend
- **Compatible**: Works with Droq workflow engine backend
- **Scalable**: Supports async execution and NATS streaming

### Key Features

- ✅ **NATS Integration**: Real-time message streaming and publishing
- ✅ **Async Execution**: Support for both synchronous and asynchronous operations
- ✅ **Timeout Handling**: Configurable execution timeouts with proper error handling
- ✅ **Status Tracking**: Component status monitoring and logging
- ✅ **Dynamic Loading**: Runtime component loading and execution
- ✅ **Input Validation**: Type-safe input validation and conversion

## 🚀 Running Locally

```bash
# Install dependencies
uv sync

# Run the service (default port 8003)
uv run droq-math-executor-node

# Run on custom port
uv run droq-math-executor-node 9000

# Run with environment variables
NATS_URL=nats://localhost:4222 uv run droq-math-executor-node
```

## 📚 Examples

### Basic Math Operations
```python
import httpx

async def execute_multiplication():
async with httpx.AsyncClient() as client:
response = await client.post(
"http://localhost:8003/api/v1/execute",
json={
"component_state": {
"component_class": "DFXMultiplyComponent",
"component_module": "dfx.math.component.multiply",
"parameters": {
"number1": 7.5,
"number2": 2.5
}
},
"method_name": "multiply",
"is_async": False
}
)

result = response.json()
print(f"Result: {result['result']['result']}") # Output: 18.75
```

### Component Integration
```python
from dfx.math.component.multiply import DFXMultiplyComponent

# Direct component usage
component = DFXMultiplyComponent()
component.number1 = 10.0
component.number2 = 5.0

result = component.multiply()
print(f"Product: {result.result}") # Output: 50.0
```

## 🧪 Development

### Setup Development Environment
```bash
# Install development dependencies
uv sync --dev

# Run tests
uv run pytest

# Run linting
uv run ruff check

# Run type checking
uv run mypy src/
```

### Building and Testing
```bash
# Build the package
uv build

# Run integration tests
uv run pytest tests/integration/

# Test API endpoints
uv run python examples/test_api.py
```

## 📖 Documentation

* [Installation Guide](docs/installation.md)
* [API Reference](docs/api.md)
* [Component Development](docs/components.md)
* [DroqFlow Integration](docs/droqflow.md)
* [Examples](examples/)

## 🤝 Contributing

We welcome contributions! Please see our [Contributing Guide](CONTRIBUTING.md) for details.

## 📄 License

Components built with dfx can be:
- Executed in isolated executor nodes
- Registered in the Droq registry service
- Discovered and used in workflows via the editor
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
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