This repository contains the source code for @dailyWord_bot, a Telegram Bot that eases learning new words & expressions in German and Spanish.

@dailyWord_bot will send you daily words with examples with a set of sentence examples. You can as well mark/unmark the words that you already know so they won't appear anymore.

The words data bank is updated dynamically with the will of collaborators via a Google Spread Sheet. Do not hesitate reaching out to collaborate! 😊

Just open Telegram and start a conversation with @dailyWord_bot

The bot is deployed on AWS using Terraform for infrastructure as code. The infrastructure includes:

• webhook Lambda: Handles incoming Telegram webhook requests
• scheduler Lambda: Runs scheduled tasks (e.g., updating word bank)

The scheduler Lambda is triggered daily at 12:30 PM UTC using AWS EventBridge (CloudWatch Events) with a cron expression: cron(30 12 * * ? *)

Note: AWS EventBridge cron expressions use UTC timezone. To schedule for a different timezone:

• 12:30 PM UTC = 1:30 PM CET (Central European Time)
• 12:30 PM UTC = 2:30 PM CEST (Central European Summer Time)

1. Build the deployment package:

   make build

2. Deploy infrastructure with Terraform:

   make deploy

3. Set up required environment variables in terraform.tfvars:

   bot_token      = "your-telegram-bot-token"
   admin_chat_ids = "comma,separated,admin,ids"