add one more currency converter API to the currency converter tutorial

x4nth055 · x4nth055 · commit b243d49c7ad9 · 2023-05-02T15:13:53.000+01:00
diff --git a/web-scraping/currency-converter/currency_converter_currencyapi.py b/web-scraping/currency-converter/currency_converter_currencyapi.py
@@ -0,0 +1,48 @@
+import requests
+import urllib.parse as p
+
+API_KEY = "vh2Fth1cu2oe3AFJV5CtTgz50tgjUGUOhlHx0jrk"
+base_url = "https://api.currencyapi.com/v3/"
+
+# utility function that both functions will use
+def get_currencyapi_data(endpoint, date=None, base_currency="USD", print_all=True):
+    """Get the list of currency codes from the API"""
+    # construct the url
+    url = p.urljoin(base_url, 
+                    f"{endpoint}?apikey={API_KEY}{'' if endpoint == 'latest' else f'&date={date}'}&base_currency={base_currency}")
+    # make the request
+    res = requests.get(url)
+    # get the json data
+    data = res.json()
+    # print all the currency codes and their values
+    c = 0
+    if print_all:
+        for currency_code, currency_name in data.get("data").items():
+            print(f"{currency_code}: {currency_name.get('value')}")
+            c += 1
+    
+    print(f"Total: {c} currencies")
+    if endpoint == "latest":
+        # get the last updated date
+        last_updated = data.get("meta").get("last_updated_at")
+        print(f"Last updated: {last_updated}")
+    return data
+
+def get_latest_rates(base_currency="USD", print_all=True):
+    """Get the latest rates from the API"""
+    return get_currencyapi_data(endpoint="latest", base_currency=base_currency, print_all=print_all)
+    
+def get_historical_rates(base_currency="USD", print_all=True, date="2023-01-01"):
+    """Get the historical rates from the Currency API
+    `date` must be in the format of YYYY-MM-DD"""
+    return get_currencyapi_data(endpoint="historical", base_currency=base_currency, date=date, print_all=print_all)
+    
+    
+if __name__ == "__main__":
+    latest_rates = get_latest_rates()
+    print(f"\n{'-'*50}\n")
+    # get the historical rates for the date 2021-01-01
+    historical_rates = get_historical_rates(date="2021-01-01", print_all=False)
+    # get EUR rate, for example
+    eur_rate = historical_rates.get("data").get("EUR").get("value")
+    print(f"EUR rate on 2021-01-01: {eur_rate}")
