Décorateur

deco.py

def login_required(f):
  def decorated_function(*args, **kwargs):
    if g.user is None:
      return redirect(url_for('login', next=request.url))
    return f(*args, **kwargs)
  
  return decorated_function

@app.route('/api/log')
@login_required
def get():
  response = {
    "logs" : [
      "log1data",
      "log2data"
    ]
  }
  return jsonify(response)

@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def catch_all(path):
  return render_template("index.html")