How to get input form without reloading from HTML to flask?

  
    
  
  
    

      {% for k,v in projectArray.typeOfInput.items() %}
      {{k|capitalize}}
      
      {% endfor %}
      
    

    
    
  

@app.route('/execute', methods=['POST'])
def execute():
    print(request.json)
    return jsonify(msg='success')