LeetBot

About

This is a simple SlackBot that posts a daily LeetCode question via Slack.

Deploy

1. Head to api.slack.com to create a new OAuth key

2. Press the Create New App button

3. Choose From Manifest

4. Copy the following manifest into the YAML section:

   _metadata:
     major_version: 1
     minor_version: 1
   display_information:
     name: LeetBot
   features:
     bot_user:
       display_name: LeetBot
       always_online: true
   oauth_config:
     scopes:
       bot:
         - channels:join
         - chat:write
   settings:
     org_deploy_enabled: false
     socket_mode_enabled: false
     token_rotation_enabled: false
   

5. Press Install to Workspace to generate the key

6. Invite the bot to the channel you wish to post in

7. Configure samconfig.toml and deploy the bot against the channel, either with the SAM build/deploy application VS Code task or:

   uv export --no-dev --no-hashes --no-emit-project -o leetbot/requirements.txt
   sam build && sam deploy
   

   SAM installs the Lambda's dependencies from leetbot/requirements.txt, which is generated from uv.lock and not committed. Skipping the export deploys a Lambda without slack_sdk.

8. Consider cron-ing the service to run at desired interval