Add the producer and the entry point.

notification_producer/main.py

@@ -0,0 +1,12 @@
+import asyncio
+from .producer_client import ProducerClient
+
+
+def main():
+    client = ProducerClient('127.0.0.1', 5554)
+    asyncio.run(client.notify_interactive())
+
+
+if __name__ == '__main__':
+    main()
+

notification_producer/producer_client.py

@@ -0,0 +1,45 @@
+import asyncio
+import struct
+import sys
+
+
+class ProducerClient:
+    BUFFER_SIZE = 1024
+
+    def __init__(self, ip: str, port: int):
+        self.__ip = ip
+        self.__port = port
+        self.reader = None
+        self.writer = None
+
+    async def connect(self):
+        self.reader, self.writer = await asyncio.open_connection(self.__ip, self.__port)
+
+    async def send(self, message: str):
+        self.writer.write(struct.pack('<L', len(message)))
+        self.writer.write(message.encode('utf-8'))
+
+    async def send_notification(self, title: str, message: str):
+        await self.send(title)
+
+        await self.send(f'# {title}\n{message}')
+
+    async def notify_interactive(self):
+        await self.connect()
+
+        try:
+            while True:
+                print('Your notification: ')
+                title = input('title: ')
+                message = input('message: ')
+                await self.send_notification(title, message)
+
+        except asyncio.CancelledError:
+            pass
+        except KeyboardInterrupt:
+            print("\nbye")
+            sys.exit(0)
+        finally:
+            self.writer.close()
+            await self.writer.wait_closed()
+