Refactor API URL to use dynamically obtained outbound IP address

Instead of using a hardcoded IP address in the  variable, this commit modifies the code to dynamically obtain the outbound IP address using the  function. The  variable is updated to construct the URL with the dynamically obtained IP address. This change allows for greater flexibility and adaptability when the machine's IP address changes.

Read.py

@@ -2,14 +2,28 @@
 
 import json
 import requests
+import socket
 import RPi.GPIO as GPIO
 from mfrc522 import SimpleMFRC522
 
 # Initialize the RFID reader
 reader = SimpleMFRC522()
 
-# API endpoint URL
-api_url_base = 'http://192.168.1.111:3001/'
+def get_outbound_ip():
+    connection = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    connection.connect(("8.8.8.8", 80))
+
+    local_ip = connection.getsockname()[0]
+    connection.close()
+
+    return local_ip
+
+
+# Get the outbound IP dynamically
+outbound_ip = get_outbound_ip()
+port = '3001'
+# Construct the API base URL with the dynamic IP
+api_url_base = f"http://{outbound_ip}:{port}/"
 
 # Function to start the playlist based on RFID tag information
 def start_playlist(tag, unique):