Как добавить запрос POST во Flasgger?

Я новичок в Flasgger и пытаюсь понять, как добавить к нему POST-запрос.

Вот мое приложение Flask с Flasgger (app.py):

import datetime
import numpy as np
import pandas as pd
from flask import Flask, jsonify, make_response, Response, request, json
from flasgger import Swagger

def upload_data(file):
    df = pd.read_json(file)
    df['Rate'] = pd.to_datetime(df['Rate'], format = "%Y-%d-%m %H:%M:%S")
    df['SI'] = np.nan
    return df

server = Flask(__name__)
Swagger(server)


@server.route('/results', methods=['POST', 'GET'])
def ML_results_get():
    """post endpoint
    ---
    tags:
      - ML-KA-results
    parameters:
      - name: body
        in: body
        required: true
        schema:
          id: ML-KA-results
          type: "object"
          required:
            - Rate
            - KE
            - SU
            - ML-PC 1
            - ML-PC 2
            - ML-PC 3
            - ML-PC 4
            - ML-PC 5
            - ML-PC 6
            - ML-Totals
            - LL-PC 1
            - LL-PC 2
            - LL-PC 3
            - LL-PC 4
            - LL-PC 5
            - LL-PC 6
            - LL-Totals
          properties:
            Rate:
              type: string
              default: "9/20/2020 8:50"
            KE:
              type: string
              default: "1"
            SU:
              type: string
              default: " GgG"
            ML-PC 1:
              type: string
              default: "154.11"
            ML-PC 2:
              type: string
              default: "0"
            ML-PC 3:
              type: string
              default: "0"
            ML-PC 4:
              type: string
              default: "0"
            ML-PC 5:
              type: string
              default: "0"
            ML-PC 6:
              type: string
              default: "0"
            ML-Totals:
              type: string
              default: "154.11"
            LL-PC 1:
              type: string
              default: "0"
            LL-PC 2:
              type: string
              default: "0"
            LL-PC 3:
              type: string
              default: "0"
            LL-PC 4:
              type: string
              default: "0"
            LL-PC 5:
              type: string
              default: "0"
            LL-PC 6:
              type: string
              default: "0"
            LL-Totals:
              type: string
              default: "0"
    responses:
      200:
        description: The product inserted in the database
        schema:
          $ref: '#/definitions/Product'
    """
    with server.test_request_context('/results'):
        if request.method == 'POST':
            reqData = request.get_json(force=True)
            df_ML = upload_data(reqData)
            return df_ML.to_json()
        else:
            return print('GET is not supported')

if __name__ == '__main__':
    server.run(debug=True, port=85)

Теперь я хочу попробовать, как работает Flasgger. Когда я захожу на http://localhost:85/apidocs/#/ML-KA-results/post_results, нажимаю «Попробовать». и скопируйте следующий файл json:

[
 {
   "Rate": "9/20/2020 8:50",
   "KE": 1,
   "SU": " GgG",
   "ML-PC 1": 154.11,
   "ML-PC 2": 0,
   "ML-PC 3": 0,
   "ML-PC 4": 0,
   "ML-PC 5": 0,
   "ML-PC 6": 0,
   "ML-Totals": 154.11,
   "LL-PC 1": 0,
   "LL-PC 2": 0,
   "LL-PC 3": 0,
   "LL-PC 4": 0,
   "LL-PC 5": 0,
   "LL-PC 6": 0,
   "LL-Totals": 0
 },
 {
   "Rate": "9/20/2020 8:50",
   "KE": 2,
   "SU": " GgG",
   "ML-PC 1": 154.27,
   "ML-PC 2": 0,
   "ML-PC 3": 0,
   "ML-PC 4": 0,
   "ML-PC 5": 0,
   "ML-PC 6": 0,
   "ML-Totals": 154.27,
   "LL-PC 1": 0,
   "LL-PC 2": 0,
   "LL-PC 3": 0,
   "LL-PC 4": 0,
   "LL-PC 5": 0,
   "LL-PC 6": 0,
   "LL-Totals": 0
 }
]

Когда я нажимаю «Выполнить», я получаю следующую ошибку:

Error: INTERNAL SERVER ERROR
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">
<html>
  <head>
    <title>TypeError: The view function did not return a valid response. The function either returned None or ended without a return statement. // Werkzeug Debugger</title>
    <link rel = "stylesheet" href = "?__debugger__=yes&amp;cmd=resource&amp;f=style.css"
        type = "text/css">
    <!-- We need to make sure this has a favicon so that the debugger does
         not by accident trigger a request to /favicon.ico which might
         change the application state. -->
    <link rel = "shortcut icon"
        href = "?__debugger__=yes&amp;cmd=resource&amp;f=console.png">
    <script src = "?__debugger__=yes&amp;cmd=resource&amp;f=jquery.js"></script>
    <script src = "?__debugger__=yes&amp;cmd=resource&amp;f=debugger.js"></script>
    <script type = "text/javascript">
      var TRACEBACK = 2439966170584,
          CONSOLE_MODE = false,
          EVALEX = true,
          EVALEX_TRUSTED = false,
          SECRET = "AhMBlga2HAcS1uO5N5Tz";
    </script>
  </head>
  <body style = "background-color: #fff">
    <div class = "debugger">
<h1>TypeError</h1>
<div class = "detail">
  <p class = "errormsg">TypeError: The view function did not return a valid response. The function either returned None or ended without a return statement.</p>
</div>
<h2 class = "traceback">Traceback <em>(most recent call last)</em></h2>
<div class = "traceback">
  
  <ul><li><div class = "frame" id = "frame-2439967649920">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">2464</em>,
      in <code class = "function">__call__</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws"></span> </pre>
<pre class = "line before"><span class = "ws">    </span>def __call__(self, environ, start_response):</pre>
<pre class = "line before"><span class = "ws">        </span>&quot;&quot;&quot;The WSGI server calls the Flask application object as the</pre>
<pre class = "line before"><span class = "ws">        </span>WSGI application. This calls :meth:`wsgi_app` which can be</pre>
<pre class = "line before"><span class = "ws">        </span>wrapped to applying middleware.&quot;&quot;&quot;</pre>
<pre class = "line current"><span class = "ws">        </span>return self.wsgi_app(environ, start_response)</pre>
<pre class = "line after"><span class = "ws"></span> </pre>
<pre class = "line after"><span class = "ws">    </span>def __repr__(self):</pre>
<pre class = "line after"><span class = "ws">        </span>return &quot;&lt;%s %r&gt;&quot; % (self.__class__.__name__, self.name)</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967650760">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">2450</em>,
      in <code class = "function">wsgi_app</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">            </span>try:</pre>
<pre class = "line before"><span class = "ws">                </span>ctx.push()</pre>
<pre class = "line before"><span class = "ws">                </span>response = self.full_dispatch_request()</pre>
<pre class = "line before"><span class = "ws">            </span>except Exception as e:</pre>
<pre class = "line before"><span class = "ws">                </span>error = e</pre>
<pre class = "line current"><span class = "ws">                </span>response = self.handle_exception(e)</pre>
<pre class = "line after"><span class = "ws">            </span>except:  # noqa: B001</pre>
<pre class = "line after"><span class = "ws">                </span>error = sys.exc_info()[1]</pre>
<pre class = "line after"><span class = "ws">                </span>raise</pre>
<pre class = "line after"><span class = "ws">            </span>return response(environ, start_response)</pre>
<pre class = "line after"><span class = "ws">        </span>finally:</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967650032">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">1867</em>,
      in <code class = "function">handle_exception</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">            </span># if we want to repropagate the exception, we can attempt to</pre>
<pre class = "line before"><span class = "ws">            </span># raise it with the whole traceback in case we can do that</pre>
<pre class = "line before"><span class = "ws">            </span># (the function was actually called from the except part)</pre>
<pre class = "line before"><span class = "ws">            </span># otherwise, we just raise the error again</pre>
<pre class = "line before"><span class = "ws">            </span>if exc_value is e:</pre>
<pre class = "line current"><span class = "ws">                </span>reraise(exc_type, exc_value, tb)</pre>
<pre class = "line after"><span class = "ws">            </span>else:</pre>
<pre class = "line after"><span class = "ws">                </span>raise e</pre>
<pre class = "line after"><span class = "ws"></span> </pre>
<pre class = "line after"><span class = "ws">        </span>self.log_exception((exc_type, exc_value, tb))</pre>
<pre class = "line after"><span class = "ws">        </span>server_error = InternalServerError()</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967650144">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\_compat.py"</cite>,
      line <em class = "line">39</em>,
      in <code class = "function">reraise</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">    </span>import collections.abc as collections_abc</pre>
<pre class = "line before"><span class = "ws"></span> </pre>
<pre class = "line before"><span class = "ws">    </span>def reraise(tp, value, tb=None):</pre>
<pre class = "line before"><span class = "ws">        </span>if value.__traceback__ is not tb:</pre>
<pre class = "line before"><span class = "ws">            </span>raise value.with_traceback(tb)</pre>
<pre class = "line current"><span class = "ws">        </span>raise value</pre>
<pre class = "line after"><span class = "ws"></span> </pre>
<pre class = "line after"><span class = "ws">    </span>implements_to_string = _identity</pre>
<pre class = "line after"><span class = "ws"></span> </pre>
<pre class = "line after"><span class = "ws"></span>else:</pre>
<pre class = "line after"><span class = "ws">    </span>iterkeys = lambda d: d.iterkeys()</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967650872">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">2447</em>,
      in <code class = "function">wsgi_app</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">        </span>ctx = self.request_context(environ)</pre>
<pre class = "line before"><span class = "ws">        </span>error = None</pre>
<pre class = "line before"><span class = "ws">        </span>try:</pre>
<pre class = "line before"><span class = "ws">            </span>try:</pre>
<pre class = "line before"><span class = "ws">                </span>ctx.push()</pre>
<pre class = "line current"><span class = "ws">                </span>response = self.full_dispatch_request()</pre>
<pre class = "line after"><span class = "ws">            </span>except Exception as e:</pre>
<pre class = "line after"><span class = "ws">                </span>error = e</pre>
<pre class = "line after"><span class = "ws">                </span>response = self.handle_exception(e)</pre>
<pre class = "line after"><span class = "ws">            </span>except:  # noqa: B001</pre>
<pre class = "line after"><span class = "ws">                </span>error = sys.exc_info()[1]</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967650928">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">1953</em>,
      in <code class = "function">full_dispatch_request</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">            </span>rv = self.preprocess_request()</pre>
<pre class = "line before"><span class = "ws">            </span>if rv is None:</pre>
<pre class = "line before"><span class = "ws">                </span>rv = self.dispatch_request()</pre>
<pre class = "line before"><span class = "ws">        </span>except Exception as e:</pre>
<pre class = "line before"><span class = "ws">            </span>rv = self.handle_user_exception(e)</pre>
<pre class = "line current"><span class = "ws">        </span>return self.finalize_request(rv)</pre>
<pre class = "line after"><span class = "ws"></span> </pre>
<pre class = "line after"><span class = "ws">    </span>def finalize_request(self, rv, from_error_handler=False):</pre>
<pre class = "line after"><span class = "ws">        </span>&quot;&quot;&quot;Given the return value from a view function this finalizes</pre>
<pre class = "line after"><span class = "ws">        </span>the request by converting it into a response and invoking the</pre>
<pre class = "line after"><span class = "ws">        </span>postprocessing functions.  This is invoked for both normal</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967650984">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">1968</em>,
      in <code class = "function">finalize_request</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">        </span>with the `from_error_handler` flag.  If enabled, failures in</pre>
<pre class = "line before"><span class = "ws">        </span>response processing will be logged and otherwise ignored.</pre>
<pre class = "line before"><span class = "ws"></span> </pre>
<pre class = "line before"><span class = "ws">        </span>:internal:</pre>
<pre class = "line before"><span class = "ws">        </span>&quot;&quot;&quot;</pre>
<pre class = "line current"><span class = "ws">        </span>response = self.make_response(rv)</pre>
<pre class = "line after"><span class = "ws">        </span>try:</pre>
<pre class = "line after"><span class = "ws">            </span>response = self.process_response(response)</pre>
<pre class = "line after"><span class = "ws">            </span>request_finished.send(self, response=response)</pre>
<pre class = "line after"><span class = "ws">        </span>except Exception:</pre>
<pre class = "line after"><span class = "ws">            </span>if not from_error_handler:</pre></div>
</div>

<li><div class = "frame" id = "frame-2439967649864">
  <h4>File <cite class = "filename">"C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py"</cite>,
      line <em class = "line">2098</em>,
      in <code class = "function">make_response</code></h4>
  <div class = "source "><pre class = "line before"><span class = "ws">                </span>)</pre>
<pre class = "line before"><span class = "ws"></span> </pre>
<pre class = "line before"><span class = "ws">        </span># the body must not be None</pre>
<pre class = "line before"><span class = "ws">        </span>if rv is None:</pre>
<pre class = "line before"><span class = "ws">            </span>raise TypeError(</pre>
<pre class = "line current"><span class = "ws">                </span>&quot;The view function did not return a valid response. The&quot;</pre>
<pre class = "line after"><span class = "ws">                </span>&quot; function either returned None or ended without a return&quot;</pre>
<pre class = "line after"><span class = "ws">                </span>&quot; statement.&quot;</pre>
<pre class = "line after"><span class = "ws">            </span>)</pre>
<pre class = "line after"><span class = "ws"></span> </pre>
<pre class = "line after"><span class = "ws">        </span># make sure the body is an instance of the response class</pre></div>
</div>
</ul>
  <blockquote>TypeError: The view function did not return a valid response. The function either returned None or ended without a return statement.</blockquote>
</div>

<div class = "plain">
  <form action = "/?__debugger__=yes&amp;cmd=paste" method = "post">
    <p>
      <input type = "hidden" name = "language" value = "pytb">
      This is the Copy/Paste friendly version of the traceback.  <span
      class = "pastemessage">You can also paste this traceback into
      a <a href = "https://gist.github.com/">gist</a>:
      <input type = "submit" value = "create paste"></span>
    </p>
    <textarea cols = "50" rows = "10" name = "code" readonly>Traceback (most recent call last):
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 2464, in __call__
    return self.wsgi_app(environ, start_response)
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 2450, in wsgi_app
    response = self.handle_exception(e)
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 1867, in handle_exception
    reraise(exc_type, exc_value, tb)
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\_compat.py&quot;, line 39, in reraise
    raise value
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 1953, in full_dispatch_request
    return self.finalize_request(rv)
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 1968, in finalize_request
    response = self.make_response(rv)
  File &quot;C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py&quot;, line 2098, in make_response
    &quot;The view function did not return a valid response. The&quot;
TypeError: The view function did not return a valid response. The function either returned None or ended without a return statement.</textarea>
  </form>
</div>
<div class = "explanation">
  The debugger caught an exception in your WSGI application.  You can now
  look at the traceback which led to the error.  <span class = "nojavascript">
  If you enable JavaScript you can also use additional features such as code
  execution (if the evalex feature is enabled), automatic pasting of the
  exceptions and much more.</span>
</div>
      <div class = "footer">
        Brought to you by <strong class = "arthur">DON'T PANIC</strong>, your
        friendly Werkzeug powered traceback interpreter.
      </div>
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<!--

Traceback (most recent call last):
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 2464, in __call__
    return self.wsgi_app(environ, start_response)
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 2450, in wsgi_app
    response = self.handle_exception(e)
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 1867, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\_compat.py", line 39, in reraise
    raise value
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 1953, in full_dispatch_request
    return self.finalize_request(rv)
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 1968, in finalize_request
    response = self.make_response(rv)
  File "C:\Users\iakubal\Anaconda3\envs\general_3_6\lib\site-packages\flask\app.py", line 2098, in make_response
    "The view function did not return a valid response. The"
TypeError: The view function did not return a valid response. The function either returned None or ended without a return statement.

Как правильно написать Flasgger API?

всегда помещайте полное сообщение об ошибке (начинающееся со слова «Traceback») в вопрос (не комментарий) в виде текста (не снимка экрана). Есть и другая полезная информация.

furas 15.12.2020 00:50

Параметр, вероятно, должен быть определен как in: body (не in: path) и иметь schema — см. этот пример. Это решает проблему?

Helen 15.12.2020 12:12

@furas Спасибо, я написал полное сообщение об ошибке

illuminato 15.12.2020 20:06

@Helen Спасибо, я меняю параметры, как вы рекомендовали, но получаю еще одну ошибку. Я обновил свой вопрос с новыми параметрами.

illuminato 15.12.2020 20:08

Я никогда не использовал Flasgger, но как по мне, ваша проблема в том, что вы используете строку with server.test_request_context('/results'): на сервере. Его следует использовать не на сервере, а в клиенте для тестирования сервера. Если я удалю эту единственную строку (и оставлю остальные if request.method == 'POST': ... ), то это перестанет показывать эту проблему, но покажет другую проблему, потому что у вас ошибка с pandas. Вы получаете данные с помощью requests.get_json() и используете их в upload_data в pd.read_json(file), но read_json() ожидает имя файла или буфера, поэтому вы должны сохранить данные в файле и использовать его имя или использовать io.StringIO

furas 16.12.2020 05:31
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Перейти к ответу Данный вопрос помечен как решенный

Ответы 1

Ответ принят как подходящий

Я никогда не использовал Flasgger, но что касается меня, ваша проблема в том, что вы используете линию

with server.test_request_context('/results'): 

на сервере.

Его следует использовать не на сервере, а в клиенте для тестирования сервера.

Если я удалю эту единственную строку (и оставлю остальные if request.method == 'POST': ...), эта проблема перестанет отображаться.

Но тогда это показывает другую проблему, потому что у вас ошибка с pandas. requests.get_json() получает строку с данными (JSON) и преобразует в словарь или список, но pd.read_json() снова нужна строка с данными (JSON), поэтому вам придется преобразовать ее обратно

    data = request.get_json(force=True)
    json_text = json.dumps(data)
    df = pd.read_json(json_text, orient='records') #orient='index')

Или вы должны получить прямую строку без привязки

    json_text = request.get_data()
    df = upload_data(json_text)

Я встретил и другую проблему. Когда я нажимаю Try out, тогда в примере отображаются данные для одной строки, и для этого нужно orient='index' в read_json(), но вы используете список со строками, и это нужно orient='records' в read_json()


Полный рабочий код для примера данных со списком строк

import datetime
import numpy as np
import pandas as pd
from flask import Flask, jsonify, make_response, Response, request, json
from flasgger import Swagger
import io

def upload_data(json_text):
    # `record` for list of rows, `index` for single row
    df = pd.read_json(json_text, orient='records') #orient='index')

    df['Date'] = pd.to_datetime(df['Date'], format = "%Y-%d-%m %H:%M:%S")
    df['QI'] = np.nan

    return df

server = Flask(__name__)
Swagger(server)

@server.route('/results', methods=['POST', 'GET'])
def DL_results_get():
 """post endpoint
---
tags:
  - ML-KA-results
parameters:
  - name: body
    in: body
    required: true
    schema:
      id: ML-KA-results
      type: "object"
      required:
        - Rate
        - KE
        - SU
        - ML-PC 1
        - ML-PC 2
        - ML-PC 3
        - ML-PC 4
        - ML-PC 5
        - ML-PC 6
        - ML-Totals
        - LL-PC 1
        - LL-PC 2
        - LL-PC 3
        - LL-PC 4
        - LL-PC 5
        - LL-PC 6
        - LL-Totals
      properties:
        Rate:
          type: string
          default: "9/20/2020 8:50"
        KE:
          type: string
          default: "1"
        SU:
          type: string
          default: " GgG"
        ML-PC 1:
          type: string
          default: "154.11"
        ML-PC 2:
          type: string
          default: "0"
        ML-PC 3:
          type: string
          default: "0"
        ML-PC 4:
          type: string
          default: "0"
        ML-PC 5:
          type: string
          default: "0"
        ML-PC 6:
          type: string
          default: "0"
        ML-Totals:
          type: string
          default: "154.11"
        LL-PC 1:
          type: string
          default: "0"
        LL-PC 2:
          type: string
          default: "0"
        LL-PC 3:
          type: string
          default: "0"
        LL-PC 4:
          type: string
          default: "0"
        LL-PC 5:
          type: string
          default: "0"
        LL-PC 6:
          type: string
          default: "0"
        LL-Totals:
          type: string
          default: "0"
responses:
  200:
    description: The product inserted in the database
    schema:
      $ref: '#/definitions/Product'
"""

    #with server.test_request_context('/results'):
    if request.method == 'POST':
        #data = request.get_json(force=True)
        #json_text = json.dumps(data)
        json_text = request.get_data()
        df = upload_data(json_text)
        return df.to_json()
    else:
        return print('GET is not supported')

if __name__ == '__main__':
    server.run(debug=True, port=8500)

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