added /news functionality #22

bot.py

@@ -66,7 +66,26 @@ def dividend(bot, update):
             update.message.reply_text(
                 text=reply, parse_mode=telegram.ParseMode.MARKDOWN
             )
-            
+
+
+def news(bot, update):
+    """
+    waits for /news command and then finds news info on that ticker.
+    """
+    message = update.message.text
+    chat_id = update.message.chat_id
+    tickers = getTickers(message)
+
+    if tickers:
+        bot.send_chat_action(chat_id=chat_id, action=telegram.ChatAction.TYPING)
+
+        for symbol, reply in tickerNews(tickers).items():
+
+            update.message.reply_text(
+                text=reply, parse_mode=telegram.ParseMode.MARKDOWN
+            )
+
+
 def error(bot, update, error):
     """Log Errors caused by Updates."""
     logger.warning('Update "%s" caused error "%s"', update, error)
@@ -85,6 +104,7 @@ def main():
     dp.add_handler(CommandHandler("help", help))
     dp.add_handler(CommandHandler("dividend", dividend))
     dp.add_handler(CommandHandler("div", dividend))
+    dp.add_handler(CommandHandler("news", news))
 
     # on noncommand i.e message - echo the message on Telegram
     dp.add_handler(MessageHandler(Filters.text, tickerDetect))

functions.py

@@ -6,6 +6,8 @@ import urllib.request
 from datetime import datetime
 
 IEX_TOKEN = os.environ["IEX"]
+
+
 def getTickers(text: str):
     """
     Takes a blob of text and returns any stock tickers found.
@@ -76,3 +78,23 @@ def tickerDividend(tickers: list):
             messages[ticker] = f"{ticker} either doesn't exist or pays no dividend."
 
     return messages
+
+
+def tickerNews(tickers: list):
+    messages = {}
+
+    for ticker in tickers:
+        IEXurl = f"https://cloud.iexapis.com/stable/stock/{ticker}/news/last/3?token={IEX_TOKEN}"
+        with urllib.request.urlopen(IEXurl) as url:
+            data = json.loads(url.read().decode())
+        if data:
+            messages[ticker] = f"News for **{ticker.upper()}**:\n"
+            for news in data:
+                message = f"\t[{news['headline']}]({news['url']})\n\n"
+                messages[ticker] = messages[ticker] + message
+        else:
+            messages[
+                ticker
+            ] = f"No news found for: {ticker}\nEither today is boring or the ticker does not exist."
+
+    return messages