Merge pull request #258 from alpacahq/change_polygon_ws_url

Changed polygon ws to socket.polygon.io

Author: Shlomi Kushchi

README.md

@@ -64,7 +64,7 @@ The Alpaca SDK will check the environment for a number of variables which can be
 | APCA_RETRY_MAX=3                 | 3                                                                                      | The number of subsequent API calls to retry on timeouts                                                                |
 | APCA_RETRY_WAIT=3                | 3                                                                                      | seconds to wait between each retry attempt                                                                             |
 | APCA_RETRY_CODES=429,504         | 429,504                                                                                | comma-separated HTTP status code for which retry is attempted                                                          |
-| POLYGON_WS_URL                   | wss://alpaca.socket.polygon.io/stocks                                                  | Endpoint for streaming polygon data.  You likely don't need to change this unless you want to proxy it for example     |
+| POLYGON_WS_URL                   | wss://socket.polygon.io/stocks                                                  | Endpoint for streaming polygon data.  You likely don't need to change this unless you want to proxy it for example     |
 | POLYGON_KEY_ID                   |                                                                                        | Your Polygon key, if it's not the same as your Alpaca API key. Most users will not need to set this to access Polygon. |
 | ALPHAVANTAGE_API_KEY=<key_id>    |                                                                                        | Your Alpha Vantage API key. You can get [one for free here](https://www.alphavantage.co/support/#api-key).             |
 

alpaca_trade_api/polygon/streamconn.py

@@ -17,7 +17,7 @@ def __init__(self, key_id: str = None):
         self._key_id = get_polygon_credentials(key_id)
         self._endpoint: URL = URL(os.environ.get(
             'POLYGON_WS_URL',
-            'wss://alpaca.socket.polygon.io/stocks'
+            'wss://socket.polygon.io/stocks'
         ).rstrip('/'))
         self._handlers = {}
         self._handler_symbols = {}