Twitter bot deployed with Heroku shuts down - heroku

Question

I'm quite new to the Heroku platform, I don't understand why my Twitter bot deployed gets shut down after some time. I don't know if it's the dyno or something else.
bot.py
import time
import json
import requests
import tweepy
from os import environ
consumer_key = environ['api_key'] #API key
consumer_secret = environ['api_key_secret'] #API key scret
key = environ['access_token'] #Access token
secret = environ['access_token_secret'] #Access token secret
auth = tweepy.OAuthHandler(consumer_key, consumer_secret) # Authentication
auth.set_access_token(key, secret) # Grant access to API
api = tweepy.API(auth) # Connect to API
def get_quote():
url = 'https://programming-quotes-api.herokuapp.com/Quotes/random'
response = requests.get(url)
data = json.loads(response.text)
data = data['en']+'\n--'+data['author']
return data
def tweet_quote():
interval = 60 * 20 # 20 minutes
while True:
quote = get_quote()
api.update_status(quote)
time.sleep(interval)
if __name__ == "__main__":
tweet_quote()
Procfile
web: python server.py
worker: python bot.py
dyno info here

Answer 1

Your Procfile shows that you have a web process and a worker process.
Assuming you are using free dynos, this behaviour is expected (bold added):
If an app has a free web dyno, and that dyno receives no web traffic in a 30-minute period, it will sleep. In addition to the web dyno sleeping, the worker dyno (if present) will also sleep.
Free worker dynos on apps that do not have a web dyno do not sleep, but of course they'll consume roughly 720 free dyno hours every month (24 hours per day × 30 days in the month).
You have a few options:
Run your worker regularly (but not constantly) via the Heroku Scheduler
E.g. maybe run it once an hour for a limited amount of time / tweets
Upgrade to paid dynos
Move your free worker dyno to another app that has no web dynos to prevent it from sleeping...
...though that might not make a lot of sense for your application
Keep your web dyno alive by pinging it at least once every 30 minutes...
...but then you'll run out of free dyno hours roughly 20 days into each month (or sooner, if your account is not verified)