modif app.py dans load
Browse files
app.py
CHANGED
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@@ -85,22 +85,11 @@ class InputData(BaseModel):
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# === Configuration S3 ===
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S3_BUCKET = os.getenv("S3_BUCKET")
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MODEL_KEY = os.getenv("MODEL_KEY")
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S3_PREFIX = "mlflow/models/"
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s3 = boto3.client("s3")
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# def latest_model(bucket:str, prefix: str):
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# response = s3.list_objects_v2(Bucket=bucket, Prefix=prefix)
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# if "content" not in response:
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# raise FileNotFoundError(f"Aucun modèle trouvé dans s3://{bucket}/{prefix}")
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# latest = max(response["content"], key=lambda x: x["LastModified"])
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# return latest["Key"]
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def get_latest_model_key():
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"""
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Récupère automatiquement le dernier fichier modèle dans S3.
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"""
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try:
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# Liste tous les objets sous le préfixe
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response = s3.list_objects_v2(
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Bucket=S3_BUCKET,
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Prefix=S3_PREFIX
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@@ -122,27 +111,13 @@ def get_latest_model_key():
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models.sort(key=lambda x: x["LastModified"], reverse=True)
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latest_key = models[0]["Key"]
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print(f"
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return latest_key
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except Exception as e:
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raise RuntimeError(f"Erreur récupération modèle S3 : {e}")
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# === Chargement automatique du dernier modèle ===
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# === Chargement du modèle depuis S3 au démarrage ===
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# model = None
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@app.get("/version")
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def version():
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import sklearn
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import sys
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return {
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"python": sys.version,
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"sklearn": sklearn.__version__
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}
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@app.on_event("startup")
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def load_model():
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global model
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@@ -154,32 +129,31 @@ def load_model():
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response = s3.get_object(Bucket=S3_BUCKET, Key=latest_model_key)
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model_bytes = io.BytesIO(response["Body"].read())
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model = joblib.load(model_bytes)
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print("
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except Exception as e:
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print(f"
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raise RuntimeError(f"Impossible de charger le modèle : {e}")
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# === Routes ===
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@app.post("/predict")
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def predict(data: InputData):
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try:
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df = pd.DataFrame([data.dict()])
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print("
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# Faire la prédiction
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prediction = model.predict(df)
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is_fraud = int(prediction[0])
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return {"is_fraud": is_fraud}
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except Exception as e:
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print(f"
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raise HTTPException(status_code=500, detail=str(e))
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# === Configuration S3 ===
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S3_BUCKET = os.getenv("S3_BUCKET")
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S3_PREFIX = "mlflow/models/"
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s3 = boto3.client("s3")
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def get_latest_model_key():
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try:
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response = s3.list_objects_v2(
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Bucket=S3_BUCKET,
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Prefix=S3_PREFIX
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models.sort(key=lambda x: x["LastModified"], reverse=True)
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latest_key = models[0]["Key"]
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print(f"Dernier modèle détecté : {latest_key}")
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return latest_key
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except Exception as e:
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raise RuntimeError(f"Erreur récupération modèle S3 : {e}")
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@app.on_event("startup")
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def load_model():
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global model
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response = s3.get_object(Bucket=S3_BUCKET, Key=latest_model_key)
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model_bytes = io.BytesIO(response["Body"].read())
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model = joblib.load(model_bytes)
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print("Modèle chargé avec succès")
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except Exception as e:
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print(f"Erreur chargement modèle : {e}")
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raise RuntimeError(f"Impossible de charger le modèle : {e}")
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# === Routes ===
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@app.get("/")
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def home():
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return {"message": "Bienvenue sur l'API Fraude détéction - Utilisez /predict pour faire une prédiction"}
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@app.post("/predict")
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def predict(data: InputData):
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try:
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df = pd.DataFrame([data.dict()])
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print("Données reçues :", df.head(1).to_dict())
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prediction = model.predict(df)
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is_fraud = int(prediction[0])
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return {"is_fraud": is_fraud}
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except Exception as e:
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print(f"Erreur prédiction : {e}")
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raise HTTPException(status_code=500, detail=str(e))
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