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A Python wrapper over NBG official exchange rate of LARI against foreign currencies

Project description

PyPI version

NBG Currency Service

NBGCurrencyService is a Python library designed to fetch and normalize currency exchange rates from the National Bank of Georgia (NBG) API. It provides both synchronous and asynchronous functionality, making it suitable for various applications.


Features

  • Fetch exchange rates for the current date or a specific date.
  • Retrieve rates for all currencies or a specific currency.
  • Supports both synchronous and asynchronous modes.
  • Easy-to-use interface with well-structured data models.

Installation

Install the package

pip install nbg-currency-api

For Asynchronous Support

To enable async mode, install with the optional aiohttp dependency:

pip install nbg-currency-api[async]

Usage

Synchronous Mode

Fetch rates for all currencies on the current date:

from nbg_currency_service import NBGCurrencyService

service = NBGCurrencyService()
data = service.fetch()
print(data)

Fetch rates for a specific currency on a specific date:

from datetime import datetime
from nbg_currency_service import NBGCurrencyService, CurrencyEnum

service = NBGCurrencyService(
    date=datetime(2023, 12, 25), currency=CurrencyEnum.USD
)
data = service.fetch()
print(data)

Asynchronous Mode

Fetch rates asynchronously for a specific currency:

import asyncio
from nbg_currency_service import NBGCurrencyService, CurrencyEnum

async def main():
    service = NBGCurrencyService(currency=CurrencyEnum.EUR, mode="ASYNC")
    data = await service.afetch()
    print(data)

asyncio.run(main())

Data Models

CurrencyDataResponse

This is the structured response returned by the service after fetching and normalizing data.

Field Type Description
date datetime The date for the rates
currencies List[CurrencyRateItem] List of currency rate items

CurrencyRateItem

Represents details of a single currency rate.

Field Type Description
code str ISO code of the currency
quantity int Quantity for the rate
rateFormated str Formatted rate string
diffFormated str Formatted difference string
rate float Exchange rate
name str Currency name
diff float Rate difference
date datetime Date of the rate
validFromDate datetime Start date for the rate

Configuration

Supported Currencies

The CurrencyEnum includes all ISO codes of supported currencies, such as:

  • CurrencyEnum.USD
  • CurrencyEnum.EUR
  • CurrencyEnum.GBP

Modes

  • SYNC (default): Use synchronous requests with the fetch method.
  • ASYNC: Use asynchronous requests with the afetch method.

Example Output

Fetching exchange rates for USD:

from nbg_currency_service import NBGCurrencyService, CurrencyEnum

service = NBGCurrencyService(currency=CurrencyEnum.USD)
data = service.fetch()

print(data)

Sample output:

CurrencyDataResponse(
    date=datetime.datetime(2025, 1, 7, 0, 0),
    currencies=[
        CurrencyRateItem(
            code='USD',
            quantity=1,
            rateFormated='3.20',
            diffFormated='+0.02',
            rate=3.2,
            name='US Dollar',
            diff=0.02,
            date=datetime.datetime(2025, 1, 7, 0, 0),
            validFromDate=datetime.datetime(2025, 1, 6, 0, 0)
        )
    ]
)

License

This project is licensed under the MIT License. See the LICENSE file for more details.

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