Currency Bot

What is it

It's a telegram bot that can offer various information about the rate of currencies. Ready for use an instance of this bot you can find in Telegram under the name @StrongExchangeBot.

Development

Local development

1. You must have installed the python 3.7 and the Postgres

2. In the Postgres create a user and a database. Don't forget set this information to settings.

3. Install the requirements

   pip install -r requirments.txt

4. Keep in mind for correct work you must pass at least TELEGRAM_TOKEN to environment variables

   export TELEGRAM_TOKEN=_your_token_

5. Run the test server

   python strong_exchange_bot/manage.py runserver

6. For expose the locale server port outside you can use ngrok.

7. For registering the webhook you can use next command

   python strong_exchange_bot/manage.py set_telegram_webhook https://example.com/

Development in the container

1. Build the image

   docker build -f Dockerfile . --tag currency-bot

2. Run a container with the host network

   docker run --rm -it --network host currency-bot

Deployment

Settings

Don't forget to set the next environment variables if you use strong_exchange_bot.settings.container settings(default in the container).

• ALLOWED_HOSTS - your Heroku host name

• DATABASE_URL - must already exist from the database add-on

• SECRET_KEY - a Django settings secret key

• TELEGRAM_SECRET_PATH - secret path(optional) that will be added to webhook API to make sure that the Webhook request comes from Telegram. docs

• TELEGRAM_TOKEN - token that you get from BotFather in the Telegram

• LOGLEVEL - by default loglevel INFO, but you could set a different level

Deployment to Heroku

1. Login to your Heroku account

   heroku login

2. Set Heroku git

   heroku git:remote -a <app_name>

3. Set container type of deployment instead of buildpacks

   heroku stack:set container -a <app_name>

4. Push project to Heroku

   git push heroku master

5. Register webhook, using Heroku console(also you local environment with same settings and environment variables)

   python3 strong_exchange_bot/manage.py set_telegram_webhook https://strong-exchange-bot.herokuapp.com/