How to build and deploy a Telegram bot with Flask

Chatbots are increasingly prevalent in SaaS applications, offering benefits such as 24/7 service, cost reduction, and enhanced customer satisfaction. One such application is building a Telegram bot integrated with a Flask-based dictionary app, which is then deployed on Heroku. Telegram stands out for its easy setup and management of chatbots, facilitated by its admin bot, BotFather, which helps create and manage bots using commands. The Flask framework, known for its lightweight codebase, is used to develop an app that fetches word definitions, synonyms, and antonyms via a Dictionary API. The integration involves using Telegram's modules and the dictionary script to allow the bot to respond to user queries with detailed word information. Deployment on Heroku involves setting up necessary files like requirements.txt and Procfile, modifying the bot to communicate with a remote server, and using Git commands to push the app to Heroku's platform. The entire process demonstrates how to efficiently create, integrate, and deploy a functional chatbot application.