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- src/gradio_ui.py +55 -69
README.md
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title: Employee Turnover Prediction API
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emoji: 👔
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colorFrom: blue
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colorTo: purple
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sdk: docker
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pinned: true
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license: mit
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app_port: 8000
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---
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API de prédiction du turnover des employés
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- 🔐 Authentification API Key
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- 📝 Logs structurés JSON
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- 🛡️ Rate limiting (20 req/min)
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- 📚 Documentation OpenAPI/Swagger
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##
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##
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```bash
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#
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#
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-H "Content-Type: application/json" \
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-d '{
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"satisfaction_employee_environnement": 3,
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"satisfaction_employee_nature_travail": 4,
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...
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}'
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```
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##
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-
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# 🚀 Employee Turnover Prediction API - v2.1.0
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## 📊 Vue d'ensemble
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API REST de prédiction du turnover des employés basée sur un modèle XGBoost avec SMOTE.
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**✨ Nouveautés v2.1.0** :
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- 📝 Logging structuré JSON
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- 🛡️ Rate limiting (20 req/min par IP)
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- ⚡ Gestion d'erreurs améliorée
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- 📊 Monitoring des performances
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- 🔐 Authentification API Key
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## 🏗️ Architecture
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```
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OC_P5/
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├── app.py # Point d'entrée FastAPI
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├── src/
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│ ├── auth.py # Authentification API Key
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│ ├── config.py # Configuration centralisée
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│ ├── logger.py # Logging structuré (NOUVEAU)
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│ ├── models.py # Chargement modèle HF Hub
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│ ├── preprocessing.py # Pipeline preprocessing
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│ ├── rate_limit.py # Rate limiting (NOUVEAU)
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│ └── schemas.py # Validation Pydantic
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├── tests/ # Suite pytest (33 tests, 88% couverture)
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├── logs/ # Logs JSON (NOUVEAU)
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│ ├── api.log # Tous les logs
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│ └── error.log # Erreurs uniquement
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├── docs/ # Documentation
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├── ml_model/ # Scripts training
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└── data/ # Données sources
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```
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## 🚀 Installation
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### Prérequis
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- Python 3.12+
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- Poetry 1.7+
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- Git
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### Setup rapide
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```bash
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# 1. Cloner le repo
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git clone https://github.com/chaton59/OC_P5.git
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cd OC_P5
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# 2. Installer les dépendances
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poetry install
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# 3. Configurer l'environnement
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cp .env.example .env
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# Éditer .env avec vos valeurs
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# 4. Lancer l'API
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poetry run uvicorn app:app --reload
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# 5. Accéder à la documentation
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# http://localhost:8000/docs
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```
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## 📝 Configuration (.env)
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```bash
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# Mode développement (désactive auth + active logs détaillés)
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DEBUG=true
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# API Key (requis en production)
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API_KEY=your-secret-key-here
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# Logging (DEBUG, INFO, WARNING, ERROR, CRITICAL)
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LOG_LEVEL=INFO
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# HuggingFace Model
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HF_MODEL_REPO=ASI-Engineer/employee-turnover-model
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MODEL_FILENAME=model/model.pkl
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```
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## 🔒 Authentification
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### Mode DEBUG (développement)
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```bash
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# L'API Key n'est PAS requise
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curl http://localhost:8000/predict -H "Content-Type: application/json" -d '{...}'
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```
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### Mode PRODUCTION
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```bash
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# L'API Key est REQUISE
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curl http://localhost:8000/predict \
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-H "X-API-Key: your-secret-key" \
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-H "Content-Type: application/json" \
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-d '{...}'
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```
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## 📡 Endpoints
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### 🏥 Health Check
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```bash
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GET /health
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# Réponse
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{
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"status": "healthy",
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"model_loaded": true,
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"model_type": "Pipeline",
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"version": "2.1.0"
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}
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```
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### 🔮 Prédiction
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```bash
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POST /predict
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Content-Type: application/json
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X-API-Key: your-key (en production)
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# Exemple payload (voir docs/API_GUIDE.md pour tous les champs)
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{
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"satisfaction_employee_environnement": 3,
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"satisfaction_employee_nature_travail": 4,
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"satisfaction_employee_equipe": 5,
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"satisfaction_employee_equilibre_pro_perso": 3,
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"note_evaluation_actuelle": 85,
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"annees_depuis_la_derniere_promotion": 2,
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"nombre_formations_realisees": 3,
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...
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}
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# Réponse
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{
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"prediction": 0, # 0 = reste, 1 = part
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"probability_0": 0.85, # Probabilité de rester
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"probability_1": 0.15, # Probabilité de partir
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"risk_level": "Low" # Low, Medium, High
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}
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```
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## 📊 Logging
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### Logs structurés JSON
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**Fichiers** :
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- `logs/api.log` : Tous les logs
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- `logs/error.log` : Erreurs uniquement
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**Format** :
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```json
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{
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"timestamp": "2025-12-26T10:30:45",
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"level": "INFO",
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"logger": "employee_turnover_api",
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"message": "Request POST /predict",
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"method": "POST",
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"path": "/predict",
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"status_code": 200,
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"duration_ms": 23.45,
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"client_host": "127.0.0.1"
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}
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```
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## 🛡️ Rate Limiting
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**Configuration** :
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- **Développement** : Désactivé (DEBUG=true)
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- **Production** : 20 requêtes/minute par IP ou API Key
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**En cas de dépassement** :
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```json
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{
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"error": "Rate limit exceeded",
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"message": "20 per 1 minute"
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}
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```
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## ✅ Tests
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```bash
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# Tous les tests
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poetry run pytest tests/ -v
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# Avec couverture
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poetry run pytest tests/ --cov --cov-report=html
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# Voir rapport HTML
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open htmlcov/index.html
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```
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**Résultats** :
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- ✅ 33 tests passés
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- 📊 88% de couverture globale
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## 🚀 Déploiement
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### Variables d'environnement requises
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```bash
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DEBUG=false
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API_KEY=<votre-clé-sécurisée>
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LOG_LEVEL=INFO
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```
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### HuggingFace Spaces
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Prêt pour déploiement avec `app.py` et `requirements.txt`
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## 📚 Documentation
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- **API Interactive** : http://localhost:8000/docs
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- **ReDoc** : http://localhost:8000/redoc
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- **Guide complet** : [docs/API_GUIDE.md](docs/API_GUIDE.md)
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- **Standards** : [docs/standards.md](docs/standards.md)
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- **Couverture tests** : [docs/TEST_COVERAGE.md](docs/TEST_COVERAGE.md)
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## 📦 Dépendances principales
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- **FastAPI** 0.115.14 : Framework web
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- **Pydantic** 2.12.5 : Validation données
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- **XGBoost** 2.1.3 : Modèle ML
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- **SlowAPI** 0.1.9 : Rate limiting
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- **python-json-logger** 4.0.0 : Logs structurés
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- **pytest** 9.0.2 : Tests
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## 🔄 Changelog
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### v2.1.0 (26 décembre 2025)
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- ✨ Système de logging structuré JSON
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- 🛡️ Rate limiting avec SlowAPI
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- ⚡ Amélioration gestion d'erreurs
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- 📊 Monitoring des performances
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### v2.0.0 (26 décembre 2025)
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- ✅ Suite de tests complète (33 tests)
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- 🔐 Authentification API Key
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- 📊 88% de couverture de code
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## 👥 Auteurs
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- **Projet** : OpenClassrooms P5
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- **Repo** : [github.com/chaton59/OC_P5](https://github.com/chaton59/OC_P5)
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src/gradio_ui.py
CHANGED
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- Visualiser la documentation de l'API
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- Comprendre les champs requis
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"""
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import os
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import gradio as gr
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import httpx
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from src.models import get_model_info
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# En production sur HF Spaces, utiliser le même host
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space_host = os.getenv("SPACE_HOST")
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if space_host:
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return f"https://{space_host}"
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# En local
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return "http://localhost:8000"
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def predict_turnover(
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annees_dans_l_entreprise: int,
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annees_dans_le_poste_actuel: int,
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) -> str:
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"""Effectue une prédiction de turnover via
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try:
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-
#
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-
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nombre_employee_sous_responsabilite
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),
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-
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| 79 |
annees_depuis_la_derniere_promotion
|
| 80 |
),
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| 81 |
-
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-
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| 83 |
satisfaction_employee_environnement
|
| 84 |
),
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| 85 |
-
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-
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| 87 |
-
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| 88 |
satisfaction_employee_nature_travail
|
| 89 |
),
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| 90 |
-
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| 91 |
-
|
| 92 |
satisfaction_employee_equilibre_pro_perso
|
| 93 |
),
|
| 94 |
-
|
| 95 |
-
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| 96 |
-
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| 97 |
-
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| 98 |
-
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| 99 |
-
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| 100 |
-
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| 101 |
-
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| 102 |
-
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| 103 |
-
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| 104 |
-
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| 105 |
-
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| 106 |
-
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| 107 |
-
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| 108 |
-
|
| 109 |
-
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| 110 |
-
#
|
| 111 |
-
|
| 112 |
-
|
| 113 |
-
|
| 114 |
-
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| 115 |
-
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| 116 |
-
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| 117 |
-
|
| 118 |
-
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| 119 |
-
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| 120 |
-
#
|
| 121 |
-
|
| 122 |
-
|
| 123 |
-
|
| 124 |
-
|
|
|
|
|
|
|
| 125 |
|
| 126 |
# Affichage
|
| 127 |
if risk_level == "High":
|
|
@@ -147,10 +137,6 @@ def predict_turnover(
|
|
| 147 |
"""
|
| 148 |
return result
|
| 149 |
|
| 150 |
-
except httpx.HTTPStatusError as e:
|
| 151 |
-
return f"❌ **Erreur API**: {e.response.status_code} - {e.response.text}"
|
| 152 |
-
except httpx.RequestError as e:
|
| 153 |
-
return f"❌ **Erreur de connexion**: {str(e)}"
|
| 154 |
except Exception as e:
|
| 155 |
return f"❌ **Erreur**: {str(e)}"
|
| 156 |
|
|
|
|
| 7 |
- Visualiser la documentation de l'API
|
| 8 |
- Comprendre les champs requis
|
| 9 |
"""
|
|
|
|
|
|
|
| 10 |
import gradio as gr
|
|
|
|
|
|
|
|
|
|
|
|
|
| 11 |
|
| 12 |
+
from src.models import get_model_info, load_model
|
| 13 |
+
from src.preprocessing import preprocess_for_prediction
|
| 14 |
+
from src.schemas import EmployeeInput
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 15 |
|
| 16 |
|
| 17 |
def predict_turnover(
|
|
|
|
| 49 |
annees_dans_l_entreprise: int,
|
| 50 |
annees_dans_le_poste_actuel: int,
|
| 51 |
) -> str:
|
| 52 |
+
"""Effectue une prédiction de turnover directement via le modèle."""
|
| 53 |
try:
|
| 54 |
+
# Créer l'objet EmployeeInput avec validation Pydantic
|
| 55 |
+
employee = EmployeeInput(
|
| 56 |
+
nombre_participation_pee=int(nombre_participation_pee),
|
| 57 |
+
nb_formations_suivies=int(nb_formations_suivies),
|
| 58 |
+
nombre_employee_sous_responsabilite=int(
|
| 59 |
nombre_employee_sous_responsabilite
|
| 60 |
),
|
| 61 |
+
distance_domicile_travail=int(distance_domicile_travail),
|
| 62 |
+
niveau_education=int(niveau_education),
|
| 63 |
+
domaine_etude=domaine_etude,
|
| 64 |
+
ayant_enfants=ayant_enfants,
|
| 65 |
+
frequence_deplacement=frequence_deplacement,
|
| 66 |
+
annees_depuis_la_derniere_promotion=int(
|
| 67 |
annees_depuis_la_derniere_promotion
|
| 68 |
),
|
| 69 |
+
annes_sous_responsable_actuel=int(annes_sous_responsable_actuel),
|
| 70 |
+
satisfaction_employee_environnement=int(
|
| 71 |
satisfaction_employee_environnement
|
| 72 |
),
|
| 73 |
+
note_evaluation_precedente=int(note_evaluation_precedente),
|
| 74 |
+
niveau_hierarchique_poste=int(niveau_hierarchique_poste),
|
| 75 |
+
satisfaction_employee_nature_travail=int(
|
| 76 |
satisfaction_employee_nature_travail
|
| 77 |
),
|
| 78 |
+
satisfaction_employee_equipe=int(satisfaction_employee_equipe),
|
| 79 |
+
satisfaction_employee_equilibre_pro_perso=int(
|
| 80 |
satisfaction_employee_equilibre_pro_perso
|
| 81 |
),
|
| 82 |
+
note_evaluation_actuelle=int(note_evaluation_actuelle),
|
| 83 |
+
heure_supplementaires=heure_supplementaires,
|
| 84 |
+
augementation_salaire_precedente=float(augementation_salaire_precedente),
|
| 85 |
+
age=int(age),
|
| 86 |
+
genre=genre,
|
| 87 |
+
revenu_mensuel=float(revenu_mensuel),
|
| 88 |
+
statut_marital=statut_marital,
|
| 89 |
+
departement=departement,
|
| 90 |
+
poste=poste,
|
| 91 |
+
nombre_experiences_precedentes=int(nombre_experiences_precedentes),
|
| 92 |
+
nombre_heures_travailless=int(nombre_heures_travailless),
|
| 93 |
+
annee_experience_totale=int(annee_experience_totale),
|
| 94 |
+
annees_dans_l_entreprise=int(annees_dans_l_entreprise),
|
| 95 |
+
annees_dans_le_poste_actuel=int(annees_dans_le_poste_actuel),
|
| 96 |
+
)
|
| 97 |
+
|
| 98 |
+
# Preprocessing
|
| 99 |
+
features = preprocess_for_prediction(employee)
|
| 100 |
+
|
| 101 |
+
# Charger le modèle et prédire
|
| 102 |
+
model = load_model()
|
| 103 |
+
prediction = int(model.predict(features)[0])
|
| 104 |
+
proba = model.predict_proba(features)[0]
|
| 105 |
+
prob_0 = float(proba[0])
|
| 106 |
+
prob_1 = float(proba[1])
|
| 107 |
+
|
| 108 |
+
# Déterminer le niveau de risque
|
| 109 |
+
if prob_1 < 0.3:
|
| 110 |
+
risk_level = "Low"
|
| 111 |
+
elif prob_1 < 0.7:
|
| 112 |
+
risk_level = "Medium"
|
| 113 |
+
else:
|
| 114 |
+
risk_level = "High"
|
| 115 |
|
| 116 |
# Affichage
|
| 117 |
if risk_level == "High":
|
|
|
|
| 137 |
"""
|
| 138 |
return result
|
| 139 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 140 |
except Exception as e:
|
| 141 |
return f"❌ **Erreur**: {str(e)}"
|
| 142 |
|