feat: Complete Rust port of WiFi-DensePose with modular crates

Major changes:
- Organized Python v1 implementation into v1/ subdirectory
- Created Rust workspace with 9 modular crates:
  - wifi-densepose-core: Core types, traits, errors
  - wifi-densepose-signal: CSI processing, phase sanitization, FFT
  - wifi-densepose-nn: Neural network inference (ONNX/Candle/tch)
  - wifi-densepose-api: Axum-based REST/WebSocket API
  - wifi-densepose-db: SQLx database layer
  - wifi-densepose-config: Configuration management
  - wifi-densepose-hardware: Hardware abstraction
  - wifi-densepose-wasm: WebAssembly bindings
  - wifi-densepose-cli: Command-line interface

Documentation:
- ADR-001: Workspace structure
- ADR-002: Signal processing library selection
- ADR-003: Neural network inference strategy
- DDD domain model with bounded contexts

Testing:
- 69 tests passing across all crates
- Signal processing: 45 tests
- Neural networks: 21 tests
- Core: 3 doc tests

Performance targets:
- 10x faster CSI processing (~0.5ms vs ~5ms)
- 5x lower memory usage (~100MB vs ~500MB)
- WASM support for browser deployment
This commit is contained in:
Claude
2026-01-13 03:11:16 +00:00
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# REST API Endpoints
## Overview
The WiFi-DensePose REST API provides comprehensive access to pose estimation data, system configuration, and analytics. This document details all available endpoints, request/response formats, authentication requirements, and usage examples.
## Table of Contents
1. [API Overview](#api-overview)
2. [Authentication](#authentication)
3. [Common Response Formats](#common-response-formats)
4. [Error Handling](#error-handling)
5. [Pose Estimation Endpoints](#pose-estimation-endpoints)
6. [System Management Endpoints](#system-management-endpoints)
7. [Configuration Endpoints](#configuration-endpoints)
8. [Analytics Endpoints](#analytics-endpoints)
9. [Health and Status Endpoints](#health-and-status-endpoints)
10. [Rate Limiting](#rate-limiting)
## API Overview
### Base URL
```
Production: https://api.wifi-densepose.com/api/v1
Staging: https://staging-api.wifi-densepose.com/api/v1
Development: http://localhost:8000/api/v1
```
### API Versioning
The API uses URL path versioning. The current version is `v1`. Future versions will be available at `/api/v2`, etc.
### Content Types
- **Request Content-Type**: `application/json`
- **Response Content-Type**: `application/json`
- **File Upload**: `multipart/form-data`
### HTTP Methods
- **GET**: Retrieve data
- **POST**: Create new resources
- **PUT**: Update existing resources (full replacement)
- **PATCH**: Partial updates
- **DELETE**: Remove resources
## Authentication
### JWT Token Authentication
Most endpoints require JWT token authentication. Include the token in the Authorization header:
```http
Authorization: Bearer <jwt_token>
```
### API Key Authentication
For service-to-service communication, use API key authentication:
```http
X-API-Key: <api_key>
```
### Getting an Access Token
```http
POST /api/v1/auth/token
Content-Type: application/json
{
"username": "your_username",
"password": "your_password"
}
```
**Response:**
```json
{
"access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
"token_type": "bearer",
"expires_in": 86400,
"refresh_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."
}
```
## Common Response Formats
### Success Response
```json
{
"success": true,
"data": {
// Response data
},
"timestamp": "2025-01-07T10:30:00Z",
"request_id": "req_123456789"
}
```
### Error Response
```json
{
"success": false,
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters",
"details": {
"field": "confidence_threshold",
"reason": "Value must be between 0 and 1"
}
},
"timestamp": "2025-01-07T10:30:00Z",
"request_id": "req_123456789"
}
```
### Pagination
```json
{
"success": true,
"data": [
// Array of items
],
"pagination": {
"page": 1,
"per_page": 50,
"total": 1250,
"total_pages": 25,
"has_next": true,
"has_prev": false
}
}
```
## Error Handling
### HTTP Status Codes
- **200 OK**: Request successful
- **201 Created**: Resource created successfully
- **400 Bad Request**: Invalid request parameters
- **401 Unauthorized**: Authentication required
- **403 Forbidden**: Insufficient permissions
- **404 Not Found**: Resource not found
- **422 Unprocessable Entity**: Validation error
- **429 Too Many Requests**: Rate limit exceeded
- **500 Internal Server Error**: Server error
### Error Codes
| Code | Description |
|------|-------------|
| `VALIDATION_ERROR` | Request validation failed |
| `AUTHENTICATION_ERROR` | Authentication failed |
| `AUTHORIZATION_ERROR` | Insufficient permissions |
| `RESOURCE_NOT_FOUND` | Requested resource not found |
| `RATE_LIMIT_EXCEEDED` | Too many requests |
| `SYSTEM_ERROR` | Internal system error |
| `HARDWARE_ERROR` | Hardware communication error |
| `MODEL_ERROR` | Neural network model error |
## Pose Estimation Endpoints
### Get Latest Pose Data
Retrieve the most recent pose estimation results.
```http
GET /api/v1/pose/latest
Authorization: Bearer <token>
```
**Query Parameters:**
- `environment_id` (optional): Filter by environment ID
- `min_confidence` (optional): Minimum confidence threshold (0.0-1.0)
- `include_keypoints` (optional): Include detailed keypoint data (default: true)
**Response:**
```json
{
"success": true,
"data": {
"timestamp": "2025-01-07T10:30:00.123Z",
"frame_id": 12345,
"environment_id": "room_001",
"processing_time_ms": 45.2,
"persons": [
{
"person_id": 1,
"track_id": 7,
"confidence": 0.87,
"bounding_box": {
"x": 120,
"y": 80,
"width": 180,
"height": 320
},
"keypoints": [
{
"name": "nose",
"x": 210,
"y": 95,
"confidence": 0.92,
"visible": true
},
{
"name": "left_eye",
"x": 205,
"y": 90,
"confidence": 0.89,
"visible": true
}
// ... additional keypoints
],
"dense_pose": {
"iuv_image": "base64_encoded_image_data",
"confidence_map": "base64_encoded_confidence_data"
}
}
],
"metadata": {
"model_version": "v1.2.0",
"processing_mode": "real_time",
"csi_quality": 0.85
}
}
}
```
### Get Historical Pose Data
Retrieve pose estimation data for a specific time range.
```http
GET /api/v1/pose/history
Authorization: Bearer <token>
```
**Query Parameters:**
- `start_time` (required): Start timestamp (ISO 8601)
- `end_time` (required): End timestamp (ISO 8601)
- `environment_id` (optional): Filter by environment ID
- `person_id` (optional): Filter by person ID
- `track_id` (optional): Filter by track ID
- `min_confidence` (optional): Minimum confidence threshold
- `page` (optional): Page number (default: 1)
- `per_page` (optional): Items per page (default: 50, max: 1000)
**Response:**
```json
{
"success": true,
"data": [
{
"timestamp": "2025-01-07T10:30:00.123Z",
"frame_id": 12345,
"person_id": 1,
"track_id": 7,
"confidence": 0.87,
"bounding_box": {
"x": 120,
"y": 80,
"width": 180,
"height": 320
},
"keypoints": [
// Keypoint data
]
}
// ... additional pose data
],
"pagination": {
"page": 1,
"per_page": 50,
"total": 1250,
"total_pages": 25,
"has_next": true,
"has_prev": false
}
}
```
### Get Person Tracking Data
Retrieve tracking information for a specific person or track.
```http
GET /api/v1/pose/tracking/{track_id}
Authorization: Bearer <token>
```
**Path Parameters:**
- `track_id` (required): Track identifier
**Query Parameters:**
- `start_time` (optional): Start timestamp
- `end_time` (optional): End timestamp
- `include_trajectory` (optional): Include movement trajectory (default: false)
**Response:**
```json
{
"success": true,
"data": {
"track_id": 7,
"person_id": 1,
"first_seen": "2025-01-07T10:25:00Z",
"last_seen": "2025-01-07T10:35:00Z",
"duration_seconds": 600,
"total_frames": 18000,
"average_confidence": 0.84,
"status": "active",
"trajectory": [
{
"timestamp": "2025-01-07T10:25:00Z",
"center_x": 210,
"center_y": 240,
"confidence": 0.87
}
// ... trajectory points
],
"statistics": {
"movement_distance": 15.7,
"average_speed": 0.026,
"time_stationary": 420,
"time_moving": 180
}
}
}
```
### Submit CSI Data for Processing
Submit raw CSI data for pose estimation processing.
```http
POST /api/v1/pose/process
Authorization: Bearer <token>
Content-Type: application/json
{
"csi_data": {
"timestamp": "2025-01-07T10:30:00.123Z",
"antenna_data": [
[
{"real": 1.23, "imag": -0.45},
{"real": 0.87, "imag": 1.12}
// ... subcarrier data
]
// ... antenna data
],
"metadata": {
"router_id": "router_001",
"sampling_rate": 30,
"signal_strength": -45
}
},
"processing_options": {
"confidence_threshold": 0.5,
"max_persons": 10,
"enable_tracking": true,
"return_dense_pose": false
}
}
```
**Response:**
```json
{
"success": true,
"data": {
"processing_id": "proc_123456",
"status": "completed",
"processing_time_ms": 67.3,
"poses": [
// Pose estimation results
]
}
}
```
## System Management Endpoints
### Start System
Start the pose estimation system with specified configuration.
```http
POST /api/v1/system/start
Authorization: Bearer <token>
Content-Type: application/json
{
"configuration": {
"domain": "healthcare",
"environment_id": "room_001",
"detection_settings": {
"confidence_threshold": 0.7,
"max_persons": 5,
"enable_tracking": true
},
"hardware_settings": {
"csi_sampling_rate": 30,
"buffer_size": 1000
}
}
}
```
**Response:**
```json
{
"success": true,
"data": {
"status": "starting",
"session_id": "session_123456",
"estimated_startup_time": 15,
"configuration_applied": {
// Applied configuration
}
}
}
```
### Stop System
Stop the pose estimation system.
```http
POST /api/v1/system/stop
Authorization: Bearer <token>
```
**Response:**
```json
{
"success": true,
"data": {
"status": "stopping",
"session_id": "session_123456",
"shutdown_initiated": "2025-01-07T10:30:00Z"
}
}
```
### Get System Status
Get current system status and performance metrics.
```http
GET /api/v1/system/status
Authorization: Bearer <token>
```
**Response:**
```json
{
"success": true,
"data": {
"status": "running",
"session_id": "session_123456",
"uptime_seconds": 3600,
"started_at": "2025-01-07T09:30:00Z",
"performance": {
"frames_processed": 108000,
"average_fps": 29.8,
"average_latency_ms": 45.2,
"cpu_usage": 65.4,
"memory_usage": 78.2,
"gpu_usage": 82.1
},
"components": {
"csi_processor": {
"status": "healthy",
"last_heartbeat": "2025-01-07T10:29:55Z"
},
"neural_network": {
"status": "healthy",
"model_loaded": true,
"inference_queue_size": 3
},
"tracker": {
"status": "healthy",
"active_tracks": 2
},
"database": {
"status": "healthy",
"connection_pool": "8/20"
}
}
}
}
```
### Restart System
Restart the pose estimation system.
```http
POST /api/v1/system/restart
Authorization: Bearer <token>
```
**Response:**
```json
{
"success": true,
"data": {
"status": "restarting",
"previous_session_id": "session_123456",
"new_session_id": "session_789012",
"estimated_restart_time": 30
}
}
```
## Configuration Endpoints
### Get Current Configuration
Retrieve the current system configuration.
```http
GET /api/v1/config
Authorization: Bearer <token>
```
**Response:**
```json
{
"success": true,
"data": {
"domain": "healthcare",
"environment_id": "room_001",
"detection": {
"confidence_threshold": 0.7,
"max_persons": 5,
"enable_tracking": true,
"tracking_max_age": 30,
"tracking_min_hits": 3
},
"neural_network": {
"model_version": "v1.2.0",
"batch_size": 32,
"enable_gpu": true,
"inference_timeout": 1000
},
"hardware": {
"csi_sampling_rate": 30,
"buffer_size": 1000,
"antenna_count": 3,
"subcarrier_count": 56
},
"analytics": {
"enable_fall_detection": true,
"enable_activity_recognition": true,
"alert_thresholds": {
"fall_confidence": 0.8,
"inactivity_timeout": 300
}
},
"privacy": {
"data_retention_days": 30,
"anonymize_data": true,
"enable_encryption": true
}
}
}
```
### Update Configuration
Update system configuration (requires system restart for some changes).
```http
PUT /api/v1/config
Authorization: Bearer <token>
Content-Type: application/json
{
"detection": {
"confidence_threshold": 0.8,
"max_persons": 3
},
"analytics": {
"enable_fall_detection": true,
"alert_thresholds": {
"fall_confidence": 0.9
}
}
}
```
**Response:**
```json
{
"success": true,
"data": {
"updated_fields": [
"detection.confidence_threshold",
"detection.max_persons",
"analytics.alert_thresholds.fall_confidence"
],
"requires_restart": false,
"applied_at": "2025-01-07T10:30:00Z",
"configuration": {
// Updated configuration
}
}
}
```
### Get Configuration Schema
Get the configuration schema with validation rules and descriptions.
```http
GET /api/v1/config/schema
Authorization: Bearer <token>
```
**Response:**
```json
{
"success": true,
"data": {
"schema": {
"type": "object",
"properties": {
"detection": {
"type": "object",
"properties": {
"confidence_threshold": {
"type": "number",
"minimum": 0.0,
"maximum": 1.0,
"description": "Minimum confidence for pose detection"
}
}
}
}
},
"defaults": {
// Default configuration values
}
}
}
```
## Analytics Endpoints
### Get Analytics Summary
Get analytics summary for a specified time period.
```http
GET /api/v1/analytics/summary
Authorization: Bearer <token>
```
**Query Parameters:**
- `start_time` (required): Start timestamp
- `end_time` (required): End timestamp
- `environment_id` (optional): Filter by environment
- `granularity` (optional): Data granularity (hour, day, week)
**Response:**
```json
{
"success": true,
"data": {
"time_period": {
"start": "2025-01-07T00:00:00Z",
"end": "2025-01-07T23:59:59Z",
"duration_hours": 24
},
"detection_stats": {
"total_detections": 15420,
"unique_persons": 47,
"average_confidence": 0.84,
"peak_occupancy": 8,
"peak_occupancy_time": "2025-01-07T14:30:00Z"
},
"activity_stats": {
"total_movement_events": 1250,
"fall_detections": 2,
"alert_count": 5,
"average_activity_level": 0.67
},
"system_stats": {
"uptime_percentage": 99.8,
"average_processing_time": 45.2,
"frames_processed": 2592000,
"error_count": 12
},
"hourly_breakdown": [
{
"hour": "2025-01-07T00:00:00Z",
"detections": 420,
"unique_persons": 2,
"average_confidence": 0.82
}
// ... hourly data
]
}
}
```
### Get Activity Events
Retrieve detected activity events (falls, alerts, etc.).
```http
GET /api/v1/analytics/events
Authorization: Bearer <token>
```
**Query Parameters:**
- `start_time` (optional): Start timestamp
- `end_time` (optional): End timestamp
- `event_type` (optional): Filter by event type (fall, alert, activity)
- `severity` (optional): Filter by severity (low, medium, high)
- `environment_id` (optional): Filter by environment
**Response:**
```json
{
"success": true,
"data": [
{
"event_id": "event_123456",
"type": "fall_detection",
"severity": "high",
"timestamp": "2025-01-07T14:25:30Z",
"environment_id": "room_001",
"person_id": 3,
"track_id": 15,
"confidence": 0.92,
"location": {
"x": 210,
"y": 180
},
"metadata": {
"fall_duration": 2.3,
"impact_severity": 0.85,
"recovery_detected": false
},
"actions_taken": [
"alert_sent",
"notification_dispatched"
]
}
// ... additional events
]
}
```
### Get Occupancy Data
Get occupancy statistics and trends.
```http
GET /api/v1/analytics/occupancy
Authorization: Bearer <token>
```
**Query Parameters:**
- `start_time` (required): Start timestamp
- `end_time` (required): End timestamp
- `environment_id` (optional): Filter by environment
- `interval` (optional): Data interval (5min, 15min, 1hour)
**Response:**
```json
{
"success": true,
"data": {
"summary": {
"average_occupancy": 3.2,
"peak_occupancy": 8,
"peak_time": "2025-01-07T14:30:00Z",
"total_person_hours": 76.8
},
"time_series": [
{
"timestamp": "2025-01-07T00:00:00Z",
"occupancy": 2,
"confidence": 0.89
},
{
"timestamp": "2025-01-07T00:15:00Z",
"occupancy": 1,
"confidence": 0.92
}
// ... time series data
],
"distribution": {
"0_persons": 15.2,
"1_person": 42.8,
"2_persons": 28.5,
"3_persons": 10.1,
"4_plus_persons": 3.4
}
}
}
```
## Health and Status Endpoints
### Health Check
Basic health check endpoint for load balancers and monitoring.
```http
GET /api/v1/health
```
**Response:**
```json
{
"status": "healthy",
"timestamp": "2025-01-07T10:30:00Z",
"version": "1.2.0",
"uptime": 3600
}
```
### Detailed Health Check
Comprehensive health check with component status.
```http
GET /api/v1/health/detailed
Authorization: Bearer <token>
```
**Response:**
```json
{
"success": true,
"data": {
"overall_status": "healthy",
"timestamp": "2025-01-07T10:30:00Z",
"version": "1.2.0",
"uptime": 3600,
"components": {
"api": {
"status": "healthy",
"response_time_ms": 12.3,
"requests_per_second": 45.2
},
"database": {
"status": "healthy",
"connection_pool": "8/20",
"query_time_ms": 5.7
},
"redis": {
"status": "healthy",
"memory_usage": "45%",
"connected_clients": 12
},
"neural_network": {
"status": "healthy",
"model_loaded": true,
"gpu_memory_usage": "78%",
"inference_queue": 2
},
"csi_processor": {
"status": "healthy",
"data_rate": 30.1,
"buffer_usage": "23%"
}
},
"metrics": {
"cpu_usage": 65.4,
"memory_usage": 78.2,
"disk_usage": 45.8,
"network_io": {
"bytes_in": 1024000,
"bytes_out": 2048000
}
}
}
}
```
### System Metrics
Get detailed system performance metrics.
```http
GET /api/v1/metrics
Authorization: Bearer <token>
```
**Query Parameters:**
- `start_time` (optional): Start timestamp for historical metrics
- `end_time` (optional): End timestamp for historical metrics
- `metric_type` (optional): Filter by metric type
**Response:**
```json
{
"success": true,
"data": {
"current": {
"timestamp": "2025-01-07T10:30:00Z",
"performance": {
"frames_per_second": 29.8,
"average_latency_ms": 45.2,
"processing_queue_size": 3,
"error_rate": 0.001
},
"resources": {
"cpu_usage": 65.4,
"memory_usage": 78.2,
"gpu_usage": 82.1,
"disk_io": {
"read_mb_per_sec": 12.5,
"write_mb_per_sec": 8.3
}
},
"business": {
"active_persons": 3,
"detections_per_minute": 89.5,
"tracking_accuracy": 0.94
}
},
"historical": [
{
"timestamp": "2025-01-07T10:25:00Z",
"frames_per_second": 30.1,
"average_latency_ms": 43.8,
"cpu_usage": 62.1
}
// ... historical data points
]
}
}
```
## Rate Limiting
### Rate Limit Headers
All API responses include rate limiting headers:
```http
X-RateLimit-Limit: 1000
X-RateLimit-Remaining: 999
X-RateLimit-Reset: 1704686400
X-RateLimit-Window: 3600
```
### Rate Limits by Endpoint Category
| Category | Limit | Window |
|----------|-------|--------|
| Authentication | 10 requests | 1 minute |
| Pose Data (GET) | 1000 requests | 1 hour |
| Pose Processing (POST) | 100 requests | 1 hour |
| Configuration | 50 requests | 1 hour |
| Analytics | 500 requests | 1 hour |
| Health Checks | 10000 requests | 1 hour |
### Rate Limit Exceeded Response
```json
{
"success": false,
"error": {
"code": "RATE_LIMIT_EXCEEDED",
"message": "Rate limit exceeded. Try again in 45 seconds.",
"details": {
"limit": 1000,
"window": 3600,
"reset_at": "2025-01-07T11:00:00Z"
}
}
}
```
---
This REST API documentation provides comprehensive coverage of all available endpoints. For real-time data streaming, see the [WebSocket API documentation](websocket-api.md). For authentication details, see the [Authentication documentation](authentication.md).
For code examples in multiple languages, see the [API Examples documentation](examples.md).