mikeyhodl / corona_cases

🦠 Coronavirus Information on Telegram Chatbot

Coronavirus disease 2019 (COVID-19) information on Telegram Messenger @corona_cases_bot

Raison d´être

The Internet interprets censorship as damage and routes around it.

• John Gilmore

Setup environment

Install

• Clojure
• Babashka
• coronavirus-tracker-api
• postgresql:

sudo apt install postgresql postgresql-contrib
sudo systemctl status postgresql.service
sudo systemctl stop postgresql.service
# set --export PATH /usr/lib/postgresql/*/bin $PATH
initdb pg
sudo chown --recursive postgres:postgres pg/
sudo chmod --recursive u=rwx,g=---,o=--- pg/
sudo -su postgres
fish # start he fish-shell for the postgres user
set --export PATH /usr/lib/postgresql/*/bin $PATH
postgres -D pg &   # this doesn't work: pg_ctl -D pg -l logfile start

Open new console and log in

psql --dbname=postgres

\conninfo
-- list databases:
\l
\l+
SELECT datname FROM pg_database;

Create

• Telegram Chatbot
• Heroku App, optionally add the Papertrail add-on

Configure

• Local environment variables. Create .env file in your project root directory:

$ touch .env

containing:

# Value must be lower-cased, without the "" chars
CORONA_ENV_TYPE=devel
#
# https://clojure.org/guides/getting_started#_installation_on_linux
# See also `.heroku-local.env` and the output of `clojure --help | grep Version`
CLOJURE_CLI_VERSION=1.10.1.763
#
# HEROKU tokens for:
PAPERTRAIL_API_TOKEN=<...>
TELEGRAM_TOKEN="<...>"

• Heroku Config Vars. See https://dashboard.heroku.com/apps/<YOUR-HEROKU-APP-NAME>/settings. See also:

$ heroku config --app <YOUR-HEROKU-APP-NAME>
CLOJURE_CLI_VERSION:  1.10.1.763
COMMIT:               ...
CORONA_ENV_TYPE:      HOKUSPOKUS
PAPERTRAIL_API_TOKEN: ...
REPL_PASSWORD:        ...
REPL_USER:            ...
TELEGRAM_TOKEN:       ...

Develop

1. Start the coronavirus-tracker-api:

$ pipenv run start

2. In Emacs Cider M-x cider-jack-in-clj, or start the nREPL from the command line:

$ clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version "0.8.3"} refactor-nrepl/refactor-nrepl {:mvn/version "2.5.0"} cider/cider-nrepl {:mvn/version "0.25.5"}}}' -m nrepl.cmdline --middleware '["refactor-nrepl.middleware/wrap-refactor", "cider.nrepl/cider-middleware"]'

and connect to it from the editor of your choice.

3. Start the telegram chatbot long-polling:

user> (require '[corona.telegram])
user> (corona.telegram/start)

4. Start the web server:

user> (require '[corona.web])
user> (alter-var-root #'system component/start)

and check the http://localhost:5050/ if it's running.

Run locally

$ bin/build; and heroku local --env=.heroku-local.env
# or:
# bin/build; and heroku local --env=.heroku-local.env --set COMMIT=...

Deploy to Heroku

$ bb heroku.clj deploy --heroku-env <YOUR-HEROKU-APP-NAME>

MySQL -> PostgreSQL script conversion

psql --dbname=postgres -a -f dbase/postgres.sql
psql --dbname=postgres -q -a -f dbase/postgres.sql | rg "ERROR\|NOTICE|WARN"
# psql --dbname=postgres -q -a -f dbase/drop-everything.sql
psql --dbname=postgres

\dt  -- list tables
\ds  -- list sequences
\di  -- list indices

Others

heroku pt ":type -'ssl-client-cert' -'$MY_TELEGRAM_ID'" --app <YOUR-HEROKU-APP-NAME> | grep -v -e '^[[:space:]]*$