* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

코드를 강의대로 짠 것 같은데, keyerror : 'sample_give'가 떴다고 합니다.

백엔드에서는 큰 문제가 없는 것 같은데 프론트엔드에서 문제가 있는 것 같습니다.

프론트엔드 터미널을 밑에다 쓰겠습니다.

jmmas@DESKTOP-DT3OTEF MINGW64 ~/OneDrive/sparta/projects/02.mars

$ source c:/Users/jmmas/OneDrive/sparta/projects/02.mars/venv/Scripts/activate

(venv)

jmmas@DESKTOP-DT3OTEF MINGW64 ~/OneDrive/sparta/projects/02.mars

$ c:/Users/jmmas/OneDrive/sparta/projects/02.mars/venv/Scripts/python.exe c:/Users/jmmas/OneDrive/sparta/projects/02.mars/app.py

 * Serving Flask app 'app'

 * Debug mode: on

WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.

 * Running on all addresses (0.0.0.0)

 * Running on http://127.0.0.1:5000

 * Running on http://192.168.0.20:5000

Press CTRL+C to quit

 * Restarting with stat

 * Debugger is active!

 * Debugger PIN: 118-558-900

127.0.0.1 - - [02/Mar/2023 21:44:51] "GET / HTTP/1.1" 200 -

127.0.0.1 - - [02/Mar/2023 21:44:51] "GET /mars HTTP/1.1" 200 -

127.0.0.1 - - [02/Mar/2023 21:44:56] "POST /mars HTTP/1.1" 500 -

Traceback (most recent call last):

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\flask\app.py", line 2551, in __call__

  return self.wsgi_app(environ, start_response)

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\flask\app.py", line 2531, in wsgi_app

  response = self.handle_exception(e)

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\flask\app.py", line 2528, in wsgi_app

  response = self.full_dispatch_request()

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\flask\app.py", line 1825, in full_dispatch_request

  rv = self.handle_user_exception(e)

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\flask\app.py", line 1823, in full_dispatch_request

  rv = self.dispatch_request()

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\flask\app.py", line 1799, in dispatch_request

  return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)

 File "c:\Users\jmmas\OneDrive\sparta\projects\02.mars\app.py", line 14, in mars_post

  name_receive = request.form['sample_give']

 File "C:\Users\jmmas\OneDrive\sparta\projects\02.mars\venv\lib\site-packages\werkzeug\datastructures.py", line 375, in __getitem__

  raise exceptions.BadRequestKeyError(key)

werkzeug.exceptions.BadRequestKeyError: 400 Bad Request: The browser (or proxy) sent a request that this server could not understand.

KeyError: 'sample_give'