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Exchange Rate Telegram Bot

A Telegram bot that gives current exchange rates, Nigerian naira included, and sends a daily rate message to subscribers.

Role: Solo project
Stack: Python, aiogram, asyncpg, PostgreSQL (Neon), APScheduler, Docker, Fly.io

Problem

Checking a naira rate means leaving the app you are in for a website, and the ECB rates, a common free source, have no naira at all.

Interface: A Telegram bot built with aiogram: /start, /rates and inline buttons for 17 base currencies
Rates: open.er-api, which includes NGN
Storage: PostgreSQL on Neon
Scheduler: APScheduler sends a daily rate message to subscribers
Hosting: A Docker image on a single Fly.io machine

Live on Fly.io, with rates for 17 base currencies and a daily broadcast to subscribers.