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Deploying Telegram ChatBot to Heroku

Steps to Deploy your ChatBot to heroku

  • Make a new folder in which all the required files will be present.

  • Copy your python script to this folder.

  • Open cmd/terminal and navigate to this folder.

  • To deploy to heroku we need to create python virtual environment. So make a virtual environment folder using the command :

    virtualenv YOUR_FOLDER_NAME

  • Activate the virtual environment by :

    • For linux : source YOUR_FOLDER_NAME/bin/activate

    • For windows: YOUR-FOLDER-NAME\Scripts\activate

  • Install the Gunicorn and Flask modules for deploying to heroku :

    pip install gunicorn flask

  • You need to install other required modules which are used by your python script in the same way.

  • Now we need to create requirements.txt file from cmd/terminal :

    pip freeze>requirements.txt

  • Create a procfile :

    • Windows : echo web: gunicorn YOUR_PYTHON_SCRIPT_NAME : YOUR_FLASK_APP_NAME > Procfile

    • Linux : web: gunicorn YOUR_PYTHON_SCRIPT_NAME : YOUR_FLASK_APP_NAME

  • To test on localhost run the python script and goto localhost

  • Above steps were to create all the necessary files required by heroku.

  • In order to deploy to heroku, first you need to create a heroku account Heroku and download Heroku CLI

  • After creating your heroku account and installing heroku CLI, create a new heroku app from their web UI.

  • Login to your account through cmd/terminal using :

heroku login

  • If you are not in your project folder then navigate to your project folder. Now create a new git repo using :

    git init  
heroku git:remote -a YOUR_HEROKU_APP_NAME

# Deploy your application  
git add .  
git commit -am "commiting a change"  
git push heroku master

  • Scaling dynos Read here :

    heroku ps:scale web=1

  • To open the website :

    heroku open

Creating Telegram Webhook

  • Goto this link and change: heroku_web_app_url to your heroku web-app's url :
https://api.telegram.org/bot<bot-token>/setWebhook?url=<heroku_web_app_url>
  • You should see something like this in your web browser:
{"ok":true,"result":true,"description":"Webhook was set"}

Useful Links

Link 1 Link 2 Link 3

Contact

Ping me on Gmail for any query: ankurchaudhary627@gmail.com