Odstranit hatespeechapp/app.py

This commit is contained in:
Tetiana Mohorian 2025-05-12 07:34:07 +00:00
parent 2d702c037a
commit af75ee323c

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from flask import Flask, request, jsonify
from flask_cors import CORS
import json
import torch
from transformers import AutoModelForSequenceClassification, AutoTokenizer
from flask_caching import Cache
import hashlib
import time
app = Flask(__name__)
CORS(app)
app.config['CACHE_TYPE'] = 'SimpleCache'
cache = Cache(app)
model_path = "./hate_speech_model/final_model"
tokenizer = AutoTokenizer.from_pretrained(model_path)
model = AutoModelForSequenceClassification.from_pretrained(model_path)
model.eval()
def generate_text_hash(text):
return hashlib.md5(text.encode('utf-8')).hexdigest()
@app.route("/api/predict", methods=["POST"])
def predict():
try:
data = request.json
text = data.get("text", "")
text_hash = generate_text_hash(text)
cached_result = cache.get(text_hash)
if cached_result:
return jsonify({"prediction": cached_result}), 200
inputs = tokenizer(text, return_tensors="pt", truncation=True, padding=True)
with torch.no_grad():
outputs = model(**inputs)
predictions = torch.argmax(outputs.logits, dim=1).item()
prediction_label = "Pravdepodobne toxický" if predictions == 1 else "Neutrálny text"
cache.set(text_hash, prediction_label)
response = app.response_class(
response=json.dumps({"prediction": prediction_label}, ensure_ascii=False),
status=200,
mimetype="application/json"
)
return response
except Exception as e:
return jsonify({"error": str(e)}), 500
def run_flask():
app.run(host="127.0.0.1", port=5000, threaded=True)