add middleware to expose common functionality for multiple rpc implementations

freqtrade/rpc/__init__.py

@@ -1 +1,34 @@
 from . import telegram
+
+REGISTERED_MODULES = []
+
+
+def init(config: dict) -> None:
+    """
+    Initializes all enabled rpc modules
+    :param config: config to use
+    :return: None
+    """
+
+    if config['telegram'].get('enabled', False):
+        REGISTERED_MODULES.append('telegram')
+        telegram.init(config)
+
+
+def cleanup() -> None:
+    """
+    Stops all enabled rpc modules
+    :return: None
+    """
+    if 'telegram' in REGISTERED_MODULES:
+        telegram.cleanup()
+
+
+def send_msg(msg: str) -> None:
+    """
+    Send given markdown message to all registered rpc modules
+    :param msg: message
+    :return: None
+    """
+    if 'telegram' in REGISTERED_MODULES:
+        telegram.send_msg(msg)