💻 Use subdomains to navigate through languages

config.py

@@ -2,11 +2,16 @@
 import socket
 
 app_name = os.getenv('HEROKU_APP_NAME', socket.gethostname())
-dyno = os.getenv('DYNO')
+dyno = os.getenv('DYNO')  # if this env variable is set, it means we are in a Heroku
 athena_query = os.getenv('AWS_ATHENA_PREPARE_STATEMENT')
 
 config = {
-    'port': os.getenv('PORT') or 8080,
+    'port': os.getenv('PORT', 8080),
+    # I can't reference a previous field, so copying and pasting here
+    'domain_name': (
+        f"{os.getenv('DOMAIN_NAME')}" if dyno  # if we are in localhost no need to add port
+        else f"{os.getenv('DOMAIN_NAME', 'localhost')}:{os.getenv('PORT', 8080)}"
+    ),
     'session': {
         'cookie_name': 'hedy',
         # in minutes

dodo.py

@@ -25,7 +25,7 @@
 from glob import glob
 import sys
 import platform
-
+from config import config as CONFIG
 from doit.tools import LongRunning
 
 if os.getenv('GITHUB_ACTION') and platform.system() == 'Windows':
@@ -354,7 +354,7 @@ def task_devserver():
             LongRunning([python3, 'app.py'], shell=False, env=dict(
                 os.environ,
                 # These are required to make some local features work.
-                BASE_URL="http://localhost:8080/",
+                BASE_URL=f"http://{CONFIG['domain_name']}",
                 ADMIN_USER="admin",))
         ],
         verbosity=2,  # show everything live