Competitive programming contests reminder bot, powered by https://clist.by.

Currently only Line bots exist. More to come. Meanwhile, add me on Line!

Prerequisite:

• Redis
• Line channel with REPLY_MESSAGE and PUSH_MESSAGE capability. Register here: https://developers.line.me/en/
• CList API Key. Get one here: https://clist.by/api/v1/doc/

Envvars:

• CLIST_APIKEY=username:... without ApiKey
• REDIS_ENDPOINT=host:port
• LINE_CHANNEL_SECRET
• LINE_CHANNEL_TOKEN
• LINE_GREETING_MESSAGE message to be shown upon join/add as friend event
• LINE_DAILY_DEFAULT default schedule for daily reminder
• LINE_DAILY_PERIOD period of cron job of sending daily reminder. Suggested: 1800 (half an hour)
• LINE_MAX_MESSAGE_LENGTH max length of a message. Limit from Line is 2000. Suggested: 1000.

Running locally: Use realize to develop locally and watch for file changes.

go get github.com/tockins/realize

CLIST_API_KEY=... \
MORE_ENVVAR=... \
realize run

Line requires SSL for all their webhooks. I suggest deploying to Heroku. After that, set your line webhook to https://url/line/callback