new_contents: #!/usr/bin/python3
  from flask import Flask, request
  
  debug=True
  
  app = Flask(__name__)
  
  @app.route('/')
  def form():
      return "x"
  
  @app.route('/p', methods=['POST'])
  def poszt():
      if request.method == 'POST':
          #post_data = request.data
          post_form = request.form['v3das_content']
          print(post_form)
  
          path = 'working.txt'
          intofile = open(path,'w')
          intofile.write(post_form)
          intofile.close()
  
          return str(post_form)
  
  if __name__ == '__main__':
      app.run(host= '0.0.0.0',port=8080,debug=debug)
  
subject: Create working.py