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Ravi kumar
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Merge pull request #15 from ravigadila/bitcoin
Bitcoin support
2 parents 6a09907 + 07289f5 commit f981fe9

3 files changed

Lines changed: 260 additions & 2 deletions

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‎forex_python/bitcoin.py‎

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import requests
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class BtcConverter(object):
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"""
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Get bit coin rates and convertion
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"""
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def get_latest_price(self, currency):
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"""
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Get Lates price of one bitcoin to valid Currency 1BTC => X USD
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"""
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url = 'https://api.coindesk.com/v1/bpi/currentprice/{}.json'.format(currency)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price = data.get('bpi').get(currency, {}).get('rate_float', None)
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return price
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return None
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def get_previous_price(self, currency, date_obj):
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"""
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Get Price for one bit coin on given date
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"""
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start = date_obj.strftime('%Y-%m-%d')
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end = date_obj.strftime('%Y-%m-%d')
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url = (
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'https://api.coindesk.com/v1/bpi/historical/close.json'
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'?start={}&end={}&currency={}'.format(
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start, end, currency
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)
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)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price = data.get('bpi', {}).get(start, None)
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return price
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return None
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def get_previous_price_list(self, currency, start_date, end_date):
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"""
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Get List of prices between two dates
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"""
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start = start_date.strftime('%Y-%m-%d')
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end = end_date.strftime('%Y-%m-%d')
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url = (
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'https://api.coindesk.com/v1/bpi/historical/close.json'
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'?start={}&end={}&currency={}'.format(
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start, end, currency
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)
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)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price_dict = data.get('bpi', {})
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return price_dict
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return {}
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def convert_to_btc(self, amount, currency):
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"""
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Convert X amount to Bit Coins
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"""
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url = 'https://api.coindesk.com/v1/bpi/currentprice/{}.json'.format(currency)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price = data.get('bpi').get(currency, {}).get('rate_float', None)
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if price:
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converted_btc = amount/price
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return converted_btc
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return None
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return None
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def convert_btc_to_cur(self, coins, currency):
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"""
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Convert X bit coins to valid currency amount
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"""
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url = 'https://api.coindesk.com/v1/bpi/currentprice/{}.json'.format(currency)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price = data.get('bpi').get(currency, {}).get('rate_float', None)
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if price:
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converted_amount = coins * price
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return converted_amount
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return None
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return None
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def convert_to_btc_on(self, amount, currency, date_obj):
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"""
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Convert X amount to BTC based on given date rate
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"""
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start = date_obj.strftime('%Y-%m-%d')
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end = date_obj.strftime('%Y-%m-%d')
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url = (
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'https://api.coindesk.com/v1/bpi/historical/close.json'
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'?start={}&end={}&currency={}'.format(
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start, end, currency
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)
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)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price = data.get('bpi', {}).get(start, None)
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if price:
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converted_btc = amount/price
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return converted_btc
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return None
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return None
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def convert_btc_to_cur_on(self, coins, currency, date_obj):
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"""
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Convert X BTC to valid currency amount based on given date
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"""
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start = date_obj.strftime('%Y-%m-%d')
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end = date_obj.strftime('%Y-%m-%d')
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url = (
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'https://api.coindesk.com/v1/bpi/historical/close.json'
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'?start={}&end={}&currency={}'.format(
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start, end, currency
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)
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)
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response = requests.get(url)
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if response.status_code == 200:
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data = response.json()
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price = data.get('bpi', {}).get(start, None)
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if price:
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converted_btc = coins*price
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return converted_btc
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return None
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return None
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def get_symbol(self):
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"""
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Here is Unicode symbol for bit coin
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"""
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return "\u0E3F"

‎tests/test.py‎

Lines changed: 1 addition & 2 deletions
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import datetime
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from unittest import TestCase
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from forex_python.converter import CurrencyRates, CurrencyCodes
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from forex_python.converter import RatesNotAvailableError
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from forex_python.converter import CurrencyRates, CurrencyCodes, RatesNotAvailableError
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class TestGetRates(TestCase):

‎tests/test_bitcoin.py‎

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import datetime
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from unittest import TestCase
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from forex_python.bitcoin import BtcConverter
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class TestCommon(TestCase):
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"""
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Common class with setUp method for all test cases
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"""
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def setUp(self):
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self.b = BtcConverter()
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class TestLatestPrice(TestCommon):
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"""
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Test get latest price using currency code
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"""
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def test_latest_price_valid_currency(self):
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price = self.b.get_latest_price('USD')
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self.assertEqual(type(price), float)
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def test_latest_price_invalid_currency(self):
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price = self.b.get_latest_price('XYZ')
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self.assertFalse(price)
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class TestPreviousPrice(TestCommon):
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"""
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Test Price with date input
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"""
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def test_previous_price_valid_currency(self):
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date_obj = datetime.datetime.today() - datetime.timedelta(days=15)
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price = self.b.get_previous_price('USD', date_obj)
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self.assertEqual(type(price), float)
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def test_previous_price_invalid_currency(self):
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date_obj = datetime.datetime.today() - datetime.timedelta(days=15)
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price = self.b.get_previous_price('XYZ', date_obj)
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self.assertFalse(price)
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class TestPreviousPriceList(TestCommon):
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"""
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Test previous price list for a currency
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"""
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def test_previous_price_list_with_valid_currency(self):
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start_date = datetime.datetime.today() - datetime.timedelta(days=15)
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end_date = datetime.datetime.today()
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price_list = self.b.get_previous_price_list('USD', start_date, end_date)
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self.assertTrue(price_list)
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self.assertEqual(type(price_list), dict)
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def test_previous_price_list_with_invalid_currency(self):
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start_date = datetime.datetime.today() - datetime.timedelta(days=15)
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end_date = datetime.datetime.today()
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price_list = self.b.get_previous_price_list('XYZ', start_date, end_date)
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self.assertFalse(price_list)
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self.assertEqual(type(price_list), dict)
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class TestConvertBtc(TestCommon):
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"""
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Test Converting amount to Bit coins
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"""
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def test_convet_to_btc_with_valid_currency(self):
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coins = self.b.convert_to_btc(250, 'USD')
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self.assertEqual(type(coins), float)
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def test_convet_to_btc_with_invalid_currency(self):
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coins = self.b.convert_to_btc(250, 'XYZ')
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self.assertFalse(coins)
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class TestConvertBtcToCur(TestCommon):
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"""
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Convert Bit Coins to Valid Currency amount
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"""
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def test_convert_btc_to_cur_valid_currency(self):
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amount = self.b.convert_btc_to_cur(2, 'USD')
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self.assertEqual(type(amount), float)
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def test_convert_btc_to_cur_invalid_currency(self):
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amount = self.b.convert_btc_to_cur(2, 'XYZ')
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self.assertFalse(amount)
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class TestConvertToBtcOn(TestCommon):
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"""
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Convert To bit coin based on previous dates
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"""
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def test_convert_to_btc_on_with_valid_currency(self):
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date_obj = datetime.datetime.today() - datetime.timedelta(days=15)
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coins = self.b.convert_to_btc_on(300, 'USD', date_obj)
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self.assertEqual(type(coins), float)
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def test_convert_to_btc_on_with_invalid_currency(self):
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date_obj = datetime.datetime.today() - datetime.timedelta(days=15)
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coins = self.b.convert_to_btc_on(300, 'XYZ', date_obj)
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self.assertFalse(coins)
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class TestConvertBtcToCurOn(TestCommon):
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"""
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Convert BitCoins to valid Currency
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"""
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def test_convert_to_btc_on_with_valid_currency(self):
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date_obj = datetime.datetime.today() - datetime.timedelta(days=15)
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amount = self.b.convert_btc_to_cur_on(3, 'USD', date_obj)
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self.assertEqual(type(amount), float)
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def test_convert_to_btc_on_with_invalid_currency(self):
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date_obj = datetime.datetime.today() - datetime.timedelta(days=15)
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amount = self.b.convert_btc_to_cur_on(3, 'XYZ', date_obj)
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self.assertFalse(amount)
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class TestBitCoinSymbol(TestCommon):
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"""
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Bit Coin symbol
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"""
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def test_bitcoin_symbol(self):
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self.assertEqual(self.b.get_symbol(), "\u0E3F")

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