Backend Development: http://localhost:4001/graphql

Docker Update:

Configured a pgAdmin container for database administration, accessible via a web interface (db-create.sh)

API Integration:

Integrated with the external CNB API (Swagger(https://api.cnb.cz/cnbapi/swagger-ui.html)) to fetch exchange rates.

Designed a dynamic request system that supports fetching rates for a given date, including precise time down to minutes and
seconds for accurate tracking.

GraphQL Implementation:

Defined a GetExchangeRates GraphQL query to provide exchange rate data, including fields such as country, currency,
amount, currencyCode, and rate.

Caching Mechanis:

Implemented a caching layer to minimize frequent API calls and enhance performance.

Database Change: http://localhost:8080/browser

Table "exchange_rate"s created to store exchange rate data, with fields such as:
validFor
country
currency
amount
currencyCode
rate
Additional metadata.

Added Migration scripts to efficiently manage database schema evolution.

Frontend Development: http://localhost:5173/exchange-rates

Table Display
Developed a dynamic table to display exchange rates using Material-UI (MUI) for responsive and visually appealing
components. Columns include Country, Currency, Amount, Currency Code, and Rate.

"Last Fetched" Display
Designed a feature to show how recently the data was fetched, e.g., "Last fetched 5 minutes ago".
Added real-time tracking of the elapsed time using React hooks, ensuring updates without needing a page refresh.

Error Handling
Integrated error handling for failed GraphQL queries and missing data. Displayed meaningful messages to improve user
experience during issues like API unavailability.

Responsive Design
Ensured the frontend is responsive and accessible on various devices.