Toast Notification API

The Toast Notification API is a lightweight HTTP REST server that allows external applications to send toast notifications to your Mixlar device.

Base URL

http://localhost:8889

Network Access Options

Local: http://localhost:8889 (this computer only)
Local Network: http://[YOUR-LOCAL-IP]:8889 (e.g., http://192.168.1.100:8889)
Tailscale: http://[TAILSCALE-IP]:8889 or https://[HOSTNAME]:8889 (with certificates)

To get all available network addresses:

GET /api/toast/network

Authentication

All endpoints (except /health) require API key authentication.

Methods

Header Authentication (Recommended)

X-API-Key: your-api-key-here

Query Parameter Authentication

?api_key=your-api-key-here

Getting Your API Key

The API key is automatically generated on first startup and stored in mixer_config.json under the key toast_api_key. You can also:

Check the console output when the server starts
Use the Toast Settings UI in the desktop app
Call POST /api/toast/regenerate to generate a new key

Rate Limiting

Limit: 30 requests per minute per IP address
Window: 60 seconds rolling window
Response: HTTP 429 Too Many Requests

{
  "error": "Rate limited",
  "message": "Too many requests"
}

Endpoints

Health Check

Check if the API server is running.

GET /api/toast/health

Authentication: Not required Response: 200 OK

{
  "status": "ok",
  "version": "1.0",
  "port": 8889
}

Send Toast Notification

Send a toast notification to the device.

POST /api/toast/send

Authentication: Required Request Body:

{
  "message": "Build Complete!",
  "icon": "checkmark",
  "subtitle": "webpack compiled successfully",
  "duration_ms": 5000,
  "color": "00FF00"
}

Parameters:

Field	Type	Required	Description	Constraints
`message`	string	Yes	Header text displayed in bold	Max 30 characters
`icon`	string	No	Icon name (see below)	Default: `"bell"`
`subtitle`	string	No	Subtitle text displayed below	Max 40 characters
`duration_ms`	integer	No	Display duration in milliseconds	1000-30000, default: 3000
`color`	string	No	Background color (hex)	With or without `#` prefix

Available Icons:

bell - Notification bell
checkmark - Success checkmark
warning - Warning triangle
close - Error/close X
settings - Gear icon
wifi - WiFi signal
audio - Speaker icon
play - Play button
pause - Pause button
volume - Volume icon
mute - Mute icon
power - Power button
refresh - Refresh/reload
home - Home icon
download - Download arrow
upload - Upload arrow

Response: 200 OK

{
  "status": "success",
  "message": "Toast notification sent"
}

Error Responses: 400 Bad Request - Missing required fields

{
  "error": "Bad request",
  "message": "message field is required"
}

401 Unauthorized - Invalid API key

{
  "error": "Unauthorized",
  "message": "Invalid API key"
}

429 Too Many Requests - Rate limit exceeded

{
  "error": "Rate limited",
  "message": "Too many requests"
}

List Toast Handlers

Get a list of all available toast handlers and their status.

GET /api/toast/handlers

Authentication: Required Response: 200 OK

{
  "status": "success",
  "handlers": [
    {
      "id": "obs",
      "name": "OBS Studio",
      "enabled": true,
      "loaded": true,
      "color": "#9147FF"
    },
    {
      "id": "spotify",
      "name": "Spotify",
      "enabled": true,
      "loaded": false,
      "color": "#1DB954"
    }
  ]
}

Get Server Status

Get information about the API server and device connection.

GET /api/toast/status

Authentication: Required Response: 200 OK

{
  "status": "success",
  "server_running": true,
  "device_connected": true,
  "port": 8889,
  "rate_limit": {
    "window_seconds": 60,
    "max_requests": 30
  }
}

Get Network Information

Get all available network addresses and Tailscale status.

GET /api/toast/network

Authentication: Required Response: 200 OK

{
  "status": "success",
  "addresses": [
    {
      "ip": "localhost",
      "url": "http://localhost:8889",
      "type": "This Computer"
    },
    {
      "ip": "100.64.1.2",
      "url": "https://mydevice.tailnet.ts.net:8889",
      "type": "Tailscale (HTTPS - Secure Remote Access)",
      "tailscale": true,
      "https": true
    },
    {
      "ip": "192.168.1.100",
      "url": "http://192.168.1.100:8889",
      "type": "Local Network"
    }
  ],
  "tailscale": {
    "installed": true,
    "running": true,
    "ip": "100.64.1.2",
    "hostname": "mydevice.tailnet.ts.net"
  },
  "recommended": "tailscale"
}

Example Usage

cURL

Basic Example:

curl -X POST http://localhost:8889/api/toast/send \
  -H "X-API-Key: YOUR_API_KEY_HERE" \
  -H "Content-Type: application/json" \
  -d '{
    "message": "Test Notification",
    "icon": "bell",
    "subtitle": "From API",
    "duration_ms": 5000,
    "color": "FF5733"
  }'

Success Notification:

curl -X POST http://localhost:8889/api/toast/send \
  -H "X-API-Key: YOUR_API_KEY_HERE" \
  -H "Content-Type: application/json" \
  -d '{
    "message": "Build Complete!",
    "icon": "checkmark",
    "color": "00FF00"
  }'

Error Notification:

curl -X POST http://localhost:8889/api/toast/send \
  -H "X-API-Key: YOUR_API_KEY_HERE" \
  -H "Content-Type: application/json" \
  -d '{
    "message": "Build Failed",
    "icon": "close",
    "subtitle": "Check console for errors",
    "duration_ms": 10000,
    "color": "FF0000"
  }'

Python

import requests

API_KEY = "YOUR_API_KEY_HERE"
BASE_URL = "http://localhost:8889"

def send_toast(message, icon="bell", subtitle=None, duration_ms=3000, color=None):
    """Send a toast notification."""
    url = f"{BASE_URL}/api/toast/send"
    headers = {
        "X-API-Key": API_KEY,
        "Content-Type": "application/json"
    }

    payload = {
        "message": message,
        "icon": icon
    }

    if subtitle:
        payload["subtitle"] = subtitle
    if duration_ms:
        payload["duration_ms"] = duration_ms
    if color:
        payload["color"] = color

    response = requests.post(url, json=payload, headers=headers)
    return response.json()

# Examples
send_toast("Server Started", icon="checkmark", color="00FF00")
send_toast("New Email", icon="bell", subtitle="From: john@example.com")
send_toast("Critical Error", icon="warning", color="FF0000", duration_ms=10000)

JavaScript / Node.js

const axios = require('axios');

const API_KEY = 'YOUR_API_KEY_HERE';
const BASE_URL = 'http://localhost:8889';

async function sendToast(message, options = {}) {
  const {
    icon = 'bell',
    subtitle = null,
    duration_ms = 3000,
    color = null
  } = options;

  const payload = { message, icon };
  if (subtitle) payload.subtitle = subtitle;
  if (duration_ms) payload.duration_ms = duration_ms;
  if (color) payload.color = color;

  try {
    const response = await axios.post(`${BASE_URL}/api/toast/send`, payload, {
      headers: {
        'X-API-Key': API_KEY,
        'Content-Type': 'application/json'
      }
    });
    return response.data;
  } catch (error) {
    console.error('Toast error:', error.response?.data || error.message);
    throw error;
  }
}

// Examples
await sendToast('Deployment Complete', { icon: 'checkmark', color: '00FF00' });
await sendToast('Test Failed', {
  icon: 'close',
  subtitle: 'Unit tests: 15 failed',
  color: 'FF0000',
  duration_ms: 8000
});

PowerShell

$apiKey = "YOUR_API_KEY_HERE"
$baseUrl = "http://localhost:8889"

function Send-Toast {
    param(
        [string]$Message,
        [string]$Icon = "bell",
        [string]$Subtitle,
        [int]$DurationMs = 3000,
        [string]$Color
    )

    $headers = @{
        "X-API-Key" = $apiKey
        "Content-Type" = "application/json"
    }

    $body = @{
        message = $Message
        icon = $Icon
    }

    if ($Subtitle) { $body.subtitle = $Subtitle }
    if ($DurationMs) { $body.duration_ms = $DurationMs }
    if ($Color) { $body.color = $Color }

    $json = $body | ConvertTo-Json

    Invoke-RestMethod -Uri "$baseUrl/api/toast/send" `
        -Method Post `
        -Headers $headers `
        -Body $json
}

# Examples
Send-Toast -Message "Backup Complete" -Icon "checkmark" -Color "00FF00"
Send-Toast -Message "Disk Space Low" -Icon "warning" -Subtitle "Only 5GB remaining" -Color "FFA500"

Bash

#!/bin/bash

API_KEY="YOUR_API_KEY_HERE"
BASE_URL="http://localhost:8889"

send_toast() {
    local message="$1"
    local icon="${2:-bell}"
    local subtitle="$3"
    local duration_ms="${4:-3000}"
    local color="$5"

    local json="{\"message\":\"$message\",\"icon\":\"$icon\""

    [ -n "$subtitle" ] && json="$json,\"subtitle\":\"$subtitle\""
    [ -n "$duration_ms" ] && json="$json,\"duration_ms\":$duration_ms"
    [ -n "$color" ] && json="$json,\"color\":\"$color\""

    json="$json}"

    curl -X POST "$BASE_URL/api/toast/send" \
        -H "X-API-Key: $API_KEY" \
        -H "Content-Type: application/json" \
        -d "$json"
}

# Examples
send_toast "Tests Passed" "checkmark" "" 3000 "00FF00"
send_toast "Build Started" "settings" "Running webpack..." 5000 "0080FF"

Use Cases

CI/CD Integration

GitHub Actions:

- name: Notify Build Complete
  run: |
    curl -X POST http://YOUR_SERVER:8889/api/toast/send \
      -H "X-API-Key: ${{ secrets.TOAST_API_KEY }}" \
      -H "Content-Type: application/json" \
      -d '{"message": "Build Complete", "icon": "checkmark", "color": "00FF00"}'

Jenkins Pipeline:

post {
    success {
        sh '''
            curl -X POST http://localhost:8889/api/toast/send \
              -H "X-API-Key: ${TOAST_API_KEY}" \
              -H "Content-Type: application/json" \
              -d '{"message": "Deploy Success", "icon": "checkmark", "color": "00FF00"}'
        '''
    }
    failure {
        sh '''
            curl -X POST http://localhost:8889/api/toast/send \
              -H "X-API-Key: ${TOAST_API_KEY}" \
              -H "Content-Type: application/json" \
              -d '{"message": "Deploy Failed", "icon": "close", "color": "FF0000"}'
        '''
    }
}

Server Monitoring

# Monitor disk space
import psutil

def check_disk_space():
    disk = psutil.disk_usage('/')
    percent_used = disk.percent

    if percent_used > 90:
        send_toast(
            "Disk Space Critical",
            icon="warning",
            subtitle=f"{percent_used}% used",
            color="FF0000",
            duration_ms=10000
        )
    elif percent_used > 75:
        send_toast(
            "Disk Space Low",
            icon="warning",
            subtitle=f"{percent_used}% used",
            color="FFA500"
        )

Task Automation

# Long-running task completion
import time

def process_data():
    # Long task...
    time.sleep(3600)

    send_toast(
        "Data Processing Complete",
        icon="checkmark",
        subtitle="1000 records processed",
        color="00FF00"
    )

HTTPS with Tailscale

For secure remote access, use Tailscale with HTTPS:

Install Tailscale: https://tailscale.com/download
Enable MagicDNS: In Tailscale admin console

Generate Certificates:

tailscale cert yourhostname.tailnet.ts.net

Place Certificates: Copy .crt and .key files to main/certs/ folder
Restart App: API server will automatically detect and use HTTPS

Your API will now be available at:

https://yourhostname.tailnet.ts.net:8889

Troubleshooting

Cannot Connect to API

Check if server is running:

curl http://localhost:8889/api/toast/health

Check firewall: Ensure port 8889 is not blocked
Check device connection: API requires device to be connected

Unauthorized Errors

Verify API key: Check mixer_config.json for toast_api_key
Check header format: Use X-API-Key (case-sensitive)
Regenerate key: Use desktop app settings or restart server

Rate Limit Errors

Wait: Rate limits reset after 60 seconds
Reduce frequency: Send max 30 requests per minute
Batch notifications: Combine multiple events into single notification

Security Considerations

API Key Storage: Store API keys securely (environment variables, secrets manager)
Local Network: API accessible to anyone on your network by default
Tailscale: Recommended for secure remote access
HTTPS: Use Tailscale certificates for encrypted communication
Firewall: Block port 8889 from internet if not using Tailscale

Documentation Version: 1.0 Last Updated: 2025-12-10 API Port: 8889

API documentation

Endpoint examples

Toast Notification API

Toast Notification API

Base URL

Network Access Options

Authentication

Methods

Getting Your API Key

Rate Limiting

Endpoints

Health Check

Send Toast Notification

List Toast Handlers

Get Server Status

Get Network Information

Example Usage

cURL

Python

JavaScript / Node.js

PowerShell

Bash

Use Cases

CI/CD Integration

Server Monitoring

Task Automation

HTTPS with Tailscale

Troubleshooting

Cannot Connect to API

Unauthorized Errors

Rate Limit Errors

Security Considerations

​Toast Notification API

​Base URL

​Network Access Options

​Authentication

​Methods

​Getting Your API Key

​Rate Limiting

​Endpoints

​Health Check

​Send Toast Notification

​List Toast Handlers

​Get Server Status

​Get Network Information

​Example Usage

​cURL

​Python

​JavaScript / Node.js

​PowerShell

​Bash

​Use Cases

​CI/CD Integration

​Server Monitoring

​Task Automation

​HTTPS with Tailscale

​Troubleshooting

​Cannot Connect to API

​Unauthorized Errors

​Rate Limit Errors

​Security Considerations

Toast Notification API

Base URL

Network Access Options

Authentication

Methods

Getting Your API Key

Rate Limiting

Endpoints

Health Check

Send Toast Notification

List Toast Handlers

Get Server Status

Get Network Information

Example Usage

cURL

Python

JavaScript / Node.js

PowerShell

Bash

Use Cases

CI/CD Integration

Server Monitoring

Task Automation

HTTPS with Tailscale

Troubleshooting

Cannot Connect to API

Unauthorized Errors

Rate Limit Errors

Security Considerations