Rename bfxapi/websocket/errors.py to exceptions.py. Add Errors enumeration inside BfxWebsocketClient.py and bfxapi/websocket/__init__.py.

bfxapi/websocket/exceptions.py

@@ -0,0 +1,57 @@
+__all__ = [
+    "ConnectionNotOpen",
+    "TooManySubscriptions",
+    "WebsocketAuthenticationRequired",
+    "InvalidAuthenticationCredentials",
+    "EventNotSupported",
+    "OutdatedClientVersion"
+]
+
+class BfxWebsocketException(Exception):
+    """
+    Base class for all exceptions defined in bfx/websocket/errors.py.
+    """
+
+    pass
+
+class ConnectionNotOpen(BfxWebsocketException):
+    """
+    This error indicates an attempt to communicate via websocket before starting the connection with the servers.
+    """
+
+    pass
+
+class TooManySubscriptions(BfxWebsocketException):
+    """
+    This error indicates an attempt to subscribe to a public channel after reaching the limit of simultaneous connections.
+    """
+
+    pass
+
+class WebsocketAuthenticationRequired(BfxWebsocketException):
+    """
+    This error indicates an attempt to access a protected resource without logging in first.
+    """
+
+    pass
+
+class InvalidAuthenticationCredentials(BfxWebsocketException):
+    """
+    This error indicates that the user has provided incorrect credentials (API-KEY and API-SECRET) for authentication.
+    """
+
+    pass
+
+class EventNotSupported(BfxWebsocketException):
+    """
+    This error indicates a failed attempt to subscribe to an event not supported by the BfxWebsocketClient.
+    """
+
+    pass
+
+class OutdatedClientVersion(BfxWebsocketException):
+    """
+    This error indicates a mismatch between the client version and the server WSS version.
+    """
+
+    pass