cstodo

Did cs71107 solve his diamond problems?

This is a slackbot living in koosaga slack built in order to help cs71107 catch his dream.

Feature

After installing the bot and inviting the bot into the channel, you can use the two following features.

Todo Database

• Command cstodo shows what cs71107 desires to do.

• Command cstodo add [content] adds his todo.

• Command cstodo remove [number] removes his todo.

Midnight Diamond Alert

• Shows every midnight(KST) problems cs71107 has solved in BOJ yesterday(Either after the preprocessing or the full day).

Build

Preperation

Yarn

You first need node.js, npm (node.js package manager) and yarn in order to build the project. If you are not familiar, please search. If you have all of them ready, command

yarn

will get all your required packages to build your code ready.

MongoDB

You then need a running mongoDB server. You can either configure your mongoDB server locally or use a cloud server. Check [mongodb.com] for detail.

.env

Make file named .env on your project folder and write

SIGNING_SECRET = Your signing secret to [Slack API](https://api.slack.com/)
ACCESS_TOKEN = Your access token to [Slack API](https://api.slack.com/)
LOG_WEBHOOK = Optional, webhook address to log on the testing channel
MONGODB_URI = URI to Mongodb database which saves all TODOs
PORT = A port you want to run the project; Defaults to 3000 if not given

Contact me if you are a koosaga slack member who wants to contribute on the slack, or you should generate one for your own slack.

If you want to eliminate unnecessary logs on test channel (if the app is on production), append

IS_PRODUCTION = true

on the file.

Test

You may run unit tests by command yarn jest. We name test suites by <module-name>.test.ts.

Run

yarn start

and slackbot will run on localhost:3000/cstodo. If you want to run it on slack, create a new new slackbot app and go to administrating page for the app > Feature > Event subscription and enter (YOUR PUBLIC IP):3000/cstodo on Request URL form. (If your IP is not a public IP, you should forward your IP to public IP using tools like ngrok.)

If you want to forward the log messages and the error messages to your slack, go to app > Feature > Incoming Webhook and create a webhook URL for the testing channel.

Use PM2

PM2 is a package which can manage deployment. It will run the project on the background. It can also automatically restart the run if the project is changed, or the project is crashed.

If you want to use PM2, you should execute

yarn pm2 install typescript

for the first time. Execute

yarn pm2 start

to start the process and

yarn pm2 stop cstodo

to stop the process.