Tobias Gesellchen 7d73da7986 feat: implement POST /key endpoint for media controls with host:port parsing
Major Features:
• POST /key endpoint implementation with XML model and validation
• Comprehensive media control commands (play, pause, stop, volume, presets)
• Automatic host:port parsing in CLI for improved UX
• Production-ready with full test coverage

Key Control Implementation:
• Add Key model with XML marshaling and validation (pkg/models/key.go)
• Support all standard keys: PLAY, PAUSE, STOP, PREV_TRACK, NEXT_TRACK, VOLUME_UP/DOWN, PRESET_1-6
• Client methods: SendKey(), Play(), Pause(), Stop(), VolumeUp(), VolumeDown(), SelectPreset()
• CLI commands: -play, -pause, -stop, -next, -prev, -volume-up, -volume-down, -preset, -key
• Critical fix: Use 'Gabbo' as sender (only accepted value by SoundTouch API)

Host:Port Parsing Enhancement:
• Support -host 192.168.178.28:8090 format in addition to separate -host/-port flags
• Robust parsing with IPv4, IPv6, and hostname support
• Graceful fallback for invalid input
• Backward compatible with existing usage

Testing & Documentation:
• Comprehensive unit tests for key functionality and host:port parsing
• Integration tested with real SoundTouch 10 and SoundTouch 20 devices
• Complete documentation in docs/KEY-CONTROLS.md and docs/HOST-PORT-PARSING.md
• All tests pass, no diagnostics errors

Breaking Changes: None
Backward Compatibility: Fully maintained

Tested with:
• SoundTouch 10 (192.168.178.28:8090) 
• SoundTouch 20 (192.168.178.35:8090) 
2026-01-08 23:46:34 +01:00
2026-01-08 22:59:34 +01:00

Bose SoundTouch API Client

A modern Go library and CLI tool for interacting with Bose SoundTouch devices via their Web API.

Features

Implemented (Phase 1)

  • HTTP Client with XML Support: Complete client for SoundTouch Web API
  • Device Information: Get detailed device info via /info endpoint
  • Device Name: Get device name via /name endpoint
  • Device Capabilities: Get device capabilities via /capabilities endpoint
  • Configured Presets: Get preset configurations via /presets endpoint
  • Now Playing Status: Get current playback information via /now_playing endpoint
  • Audio Sources: Get available sources via /sources endpoint
  • UPnP Discovery: Automatic device discovery on local network
  • Cross-Platform: Works on Windows, macOS, Linux, and WASM
  • CLI Tool: Command-line interface for testing and basic operations
  • Flexible Configuration: Support for .env files and environment variables
  • Hybrid Discovery: Combines UPnP discovery with configured device lists

🔄 Planned

  • Real-time WebSocket events
  • Playback control (play, pause, volume, etc.)
  • Source management (Spotify, Bluetooth, etc.)
  • Preset management
  • Web application interface
  • Multi-room zone support

Installation

Using Go

go install github.com/user_account/bose-soundtouch/cmd/soundtouch-cli@latest

From Source

git clone https://github.com/user_account/bose-soundtouch.git
cd bose-soundtouch
make build

Quick Start

Configuration

Create a .env file in your working directory to configure preferred devices:

# Copy the example file
cp .env.example .env

Example .env configuration:

# Discovery Settings
DISCOVERY_TIMEOUT=5s
UPNP_ENABLED=true

# Preferred Devices (alternative to UPnP)
# Format: name@host:port;name@host:port;...
PREFERRED_DEVICES="Living Room@192.168.1.100;Kitchen@192.168.1.101;192.168.1.102:8091"

# HTTP Client Settings
HTTP_TIMEOUT=10s
USER_AGENT="Bose-SoundTouch-Go-Client/1.0"

CLI Usage

Device Discovery

# Discover SoundTouch devices (combines UPnP + configured devices)
soundtouch-cli -discover

# Discover and show detailed info for all devices
soundtouch-cli -discover-all

Device Information

# Get device information by IP address
soundtouch-cli -host 192.168.1.100 -info

# With custom port and timeout
soundtouch-cli -host 192.168.1.100 -port 8090 -timeout 15s -info

Now Playing Status

# Get current playback information
soundtouch-cli -host 192.168.1.100 -nowplaying

# Example output:
# Now Playing:
#   Device ID: A81B6A536A98
#   Source: SPOTIFY
#   Status: Playing
#   Title: In Between Breaths - Paris Unplugged
#   Artist: SYML
#   Album: Paris Unplugged
#   Duration: 2:32 / 3:30
#   Shuffle: Off
#   Repeat: Off
#   Artwork: https://i.scdn.co/image/...
#   Capabilities: Skip, Skip Previous, Seek, Favorite

#### Audio Sources
```bash
# Get available audio sources
soundtouch-cli -host 192.168.1.100 -sources

# Example output:
# Audio Sources:
#   Device ID: A81B6A536A98
#   Total Sources: 14
#   Ready Sources: 5
#
# Ready Sources:
#   • AUX IN [Local, Multiroom]
#   • user+spotify@example.com (user) [Remote, Multiroom, Streaming]
#   • Alexa [Remote, Multiroom]
#   • Tunein [Remote, Multiroom, Streaming]
#   • Local_internet_radio [Remote, Multiroom, Streaming]
#
# Categories:
#   Spotify: 1 account(s) ready
#   AUX Input: Ready
#   Streaming Services: 3 ready

Device Name

# Get device name
soundtouch-cli -host 192.168.1.100 -name

# Example output:
# Device Name: Sound Machinechen

Device Capabilities

# Get device capabilities
soundtouch-cli -host 192.168.1.100 -capabilities

# Example output:
# Device Capabilities:
#   Device ID: A81B6A536A98
#
# System Features:
#   • Power Saving Disabled
#
# Audio Features:
#   • L/R Stereo
#
# Network Features:
#   • Dual Mode
#   • WSAPI Proxy
#
# Extended Capabilities:
#   • systemtimeout (/systemtimeout)
#   • rebroadcastlatencymode (/rebroadcastlatencymode)

Configured Presets

# Get configured presets
soundtouch-cli -host 192.168.1.100 -presets

# Example output:
# Configured Presets:
#   Used Slots: 6/6
#   Spotify Presets: 6
#
# Preset 1: My Playlist
#   Source: SPOTIFY (user@example.com)
#   Type: tracklisturl
#   Created: 2024-06-23 09:40:36
#   Updated: 2024-10-12 15:39:42
#   Artwork: https://i.scdn.co/image/...
#
# Most Recent: Preset 4 (Movie Soundtrack)

Go Library Usage

package main

import (
    "context"
    "fmt"
    "log"
    "time"

    "github.com/user_account/bose-soundtouch/pkg/client"
    "github.com/user_account/bose-soundtouch/pkg/discovery"
)

func main() {
    // Option 1: Connect to known device
    soundtouchClient := client.NewClientFromHost("192.168.1.100")
    
    deviceInfo, err := soundtouchClient.GetDeviceInfo()
    if err != nil {
        log.Fatal(err)
    }
    
    fmt.Printf("Device: %s (%s)\n", deviceInfo.Name, deviceInfo.Type)

    // Option 2: Discover devices automatically
    discoveryService := discovery.NewDiscoveryService(5 * time.Second)
    ctx := context.Background()
    
    devices, err := discoveryService.DiscoverDevices(ctx)
    if err != nil {
        log.Fatal(err)
    }
    
    for _, device := range devices {
        fmt.Printf("Found: %s at %s:%d\n", device.Name, device.Host, device.Port)
    }
    
    // Get current playback status
    nowPlaying, err := soundtouchClient.GetNowPlaying()
    if err != nil {
        log.Fatal(err)
    }
    
    if !nowPlaying.IsEmpty() {
        fmt.Printf("Now Playing: %s by %s\n", 
            nowPlaying.GetDisplayTitle(), 
            nowPlaying.GetDisplayArtist())
    }
    
    // Get available audio sources
    sources, err := soundtouchClient.GetSources()
    if err != nil {
        log.Fatal(err)
    }
    
    fmt.Printf("Ready Sources: %d/%d\n", 
        sources.GetReadySourceCount(), 
        sources.GetSourceCount())
    
    if sources.HasSpotify() {
        fmt.Println("Spotify is available")
    }
    
    // Get device name
    name, err := soundtouchClient.GetName()
    if err != nil {
        log.Fatal(err)
    }
    fmt.Printf("Device: %s\n", name.GetName())
    
    // Get device capabilities
    capabilities, err := soundtouchClient.GetCapabilities()
    if err != nil {
        log.Fatal(err)
    }
    fmt.Printf("L/R Stereo Support: %v\n", capabilities.HasLRStereoCapability())
    
    // Get presets
    presets, err := soundtouchClient.GetPresets()
    if err != nil {
        log.Fatal(err)
    }
    fmt.Printf("Presets Used: %d/6\n", len(presets.GetUsedPresetSlots()))
}

Project Structure

├── cmd/
│   └── soundtouch-cli/     # CLI application
├── pkg/
│   ├── client/             # HTTP client with XML support
│   ├── discovery/          # UPnP SSDP device discovery
│   └── models/             # XML data models
├── docs/                   # Documentation
└── build/                  # Build artifacts

Development

Prerequisites

  • Go 1.25.5 or later
  • Make (optional, for convenience)

Building

# Build CLI tool
make build

# Build for all platforms
make build-all

# Build and run tests
make check

# Run tests with coverage
make test-coverage

Testing

# Run all tests
make test

# Run specific package tests
go test -v ./pkg/client
go test -v ./pkg/discovery

# Test with real devices
make dev-info HOST=192.168.1.100

Development Commands

# Format code
make fmt

# Run linter (requires golangci-lint)
make lint

# Clean build artifacts
make clean

# Show help
make help

API Documentation

The SoundTouch Web API uses HTTP with XML payloads. Key endpoints include:

  • GET /info - Device information Implemented
  • GET /name - Device name Implemented
  • GET /capabilities - Device capabilities Implemented
  • GET /presets - Configured presets Implemented
  • GET /now_playing - Current playback status Implemented
  • GET /sources - Available audio sources Implemented
  • POST /key - Send key commands (play, pause, etc.)
  • GET/POST /volume - Volume control
  • WebSocket / - Real-time event stream

For complete API documentation, see docs/API-Endpoints-Overview.md.

Configuration Options

The application supports configuration through .env files and environment variables:

Variable Default Description
DISCOVERY_TIMEOUT 5s Timeout for device discovery
UPNP_ENABLED true Enable/disable UPnP discovery
PREFERRED_DEVICES (empty) Semicolon-separated list of devices
HTTP_TIMEOUT 10s HTTP client timeout
CACHE_ENABLED true Enable device caching
CACHE_TTL 30s Cache time-to-live

Device Configuration Format

The PREFERRED_DEVICES environment variable supports multiple formats:

# Host only (uses default port 8090)
PREFERRED_DEVICES="192.168.1.100"

# Host with port
PREFERRED_DEVICES="192.168.1.100:8091"

# Named device
PREFERRED_DEVICES="Living Room@192.168.1.100"

# Multiple devices
PREFERRED_DEVICES="Living Room@192.168.1.100;Kitchen@192.168.1.101:8091"

Supported Devices

Tested with:

  • Bose SoundTouch 10
  • Bose SoundTouch 20

Should work with all SoundTouch series devices that support the Web API.

Real Device Examples

SoundTouch 10 Response

<info deviceID="A81B6A536A98">
    <name>Sound Machinechen</name>
    <type>SoundTouch 10</type>
    <moduleType>sm2</moduleType>
    <variant>rhino</variant>
    <components>
        <component>
            <componentCategory>SCM</componentCategory>
            <softwareVersion>27.0.6.46330.5043500</softwareVersion>
        </component>
    </components>
</info>

SoundTouch 20 Response

<info deviceID="1234567890AB">
    <name>My SoundTouch Device</name>
    <type>SoundTouch 20</type>
    <moduleType>scm</moduleType>
    <variant>spotty</variant>
    <components>
        <component>
            <componentCategory>SCM</componentCategory>
            <softwareVersion>27.0.6.46330.5043500</softwareVersion>
        </component>
        <component>
            <componentCategory>Lightswitch</componentCategory>
        </component>
    </components>
</info>

Architecture

This project follows modern Go patterns:

  • Clean Architecture: Separated concerns with pkg structure
  • Interface-Based Design: Testable and mockable components
  • Cross-Platform: Supports Windows, macOS, Linux, and WASM
  • Test-Driven: Comprehensive unit and integration tests
  • Real Device Integration: Tested with actual SoundTouch hardware

Contributing

  1. Fork the repository
  2. Create a feature branch
  3. Add tests for new functionality
  4. Ensure all tests pass: make check
  5. Submit a pull request

Development Guidelines

  • Tests are mandatory: Every feature needs corresponding tests
  • KISS principle: Keep implementations simple and readable
  • Small iterations: Break large features into testable chunks
  • Real device testing: Validate against actual SoundTouch devices
  • Cross-platform compatibility: Test on multiple platforms

License

This project is licensed under the MIT License - see the LICENSE file for details.

References

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