Flask + Redis + background process in while loop

server.py

from flask import Flask, jsonify, request, send_from_directory
import redis, celery, sys, socket, os, json

# config
port = 6000 # port on which data streams

# app
app = Flask(__name__, static_url_path='')
app.config['CELERY_BROKER_URL'] = 'redis://localhost:6379/0'
app.config['CELERY_RESULT_BACKEND'] = 'redis://localhost:6379/0'
celery = celery.Celery(app.name, broker=app.config['CELERY_BROKER_URL'])
celery.conf.update(app.config)

@app.route('/frames')
def get_frames():
  return jsonify(frames)

@celery.task
def update_frames():
  # data streaming socket
  client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  client.connect((socket.gethostbyname('127.0.0.1'), port)) # host, port
  frame = [] # initialize the container obj that will hold all frame data
  while True:
    data = client.recv(1024).decode('utf8')
    for l in data.split('\n'):
      if 'end_frame' in l:
        d = {i.split(':')[0]: i.split(':')[1] for i in frame if ':' in i}
        redis.lpush('frames', json.dumps(d))
        frame = []
      elif l.rstrip('\n'):
        frame.append(l.rstrip('\n'))

if __name__ == '__main__':
  app.run(host='0.0.0.0', port=5050)