Python flask APIs

 

from flask import Flask, request, jsonify from flask_sqlalchemy import SQLAlchemy from datetime import datetime from sqlalchemy import and_ app = Flask(__name__) app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///patient_data.db' # Use SQLite for simplicity app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False db = SQLAlchemy(app) class PatientData(db.Model): id = db.Column(db.Integer, primary_key=True) patient_id = db.Column(db.String(50), nullable=False) timestamp = db.Column(db.DateTime, nullable=False) temperature = db.Column(db.Float) blood_pressure = db.Column(db.String(20)) heart_rate = db.Column(db.Integer) oxygen_saturation = db.Column(db.Integer) ecg = db.Column(db.String(20)) ppg = db.Column(db.String(20)) def to_dict(self): return { "timestamp": self.timestamp.isoformat(), "temperature": self.temperature, "blood_pressure": self.blood_pressure, "heart_rate": self.heart_rate, "oxygen_saturation": self.oxygen_saturation, "ecg": self.ecg, "ppg": self.ppg } @app.route('/api/patient_data', methods=['GET']) def get_patient_data(): patient_id = request.args.get('patient_id') start_time = request.args.get('start_time') end_time = request.args.get('end_time') # Validate input parameters if not all([patient_id, start_time, end_time]): return jsonify({"error": "Missing required parameters"}), 400 try: start_time = datetime.fromisoformat(start_time) end_time = datetime.fromisoformat(end_time) except ValueError: return jsonify({"error": "Invalid datetime format. Use ISO format (YYYY-MM-DDTHH:MM:SS)"}), 400 if start_time > end_time: return jsonify({"error": "Start time must be before end time"}), 400 # Query the database for patient data patient_data = PatientData.query.filter( and_( PatientData.patient_id == patient_id, PatientData.timestamp >= start_time, PatientData.timestamp <= end_time ) ).order_by(PatientData.timestamp).all() return jsonify({ "patient_id": patient_id, "start_time": start_time.isoformat(), "end_time": end_time.isoformat(), "data": [data.to_dict() for data in patient_data] }) @app.route('/api/add_patient_data', methods=['POST']) def add_patient_data(): data = request.json new_data = PatientData( patient_id=data['patient_id'], timestamp=datetime.fromisoformat(data['timestamp']), temperature=data['temperature'], blood_pressure=data['blood_pressure'], heart_rate=data['heart_rate'], oxygen_saturation=data['oxygen_saturation'], ecg=data['ecg'], ppg=data['ppg'] ) db.session.add(new_data) db.session.commit() return jsonify({"message": "Data added successfully"}), 201 if __name__ == '__main__': with app.app_context(): db.create_all() # Create database tables app.run(debug=True)