Added info abotu adding cookies using Set-Cookie headers

adafruit_httpserver/headers.py

@@ -63,7 +63,10 @@ def __init__(self, headers: Union[str, Dict[str, str]] = None) -> None:
                 self.add(key, value)
 
     def add(self, field_name: str, value: str):
-        """Adds a header with the given field name and value."""
+        """
+        Adds a header with the given field name and value.
+        Allows adding multiple headers with the same name.
+        """
         self._add_field_value(field_name.lower(), value)
 
     def get(self, field_name: str, default: str = None) -> Union[str, None]:

docs/examples.rst

@@ -192,11 +192,11 @@ You can use cookies to store data on the client side, that will be sent back to
 They are often used to store authentication tokens, session IDs, but also to user preferences e.g. theme.
 
 To access cookies, use ``request.cookies`` dictionary.
-In order to set cookies,  pass ``cookies`` dictionary to ``Response`` constructor.
+In order to set cookies,  pass ``cookies`` dictionary to ``Response`` constructor or manually add ``Set-Cookie`` header.
 
 .. literalinclude:: ../examples/httpserver_cookies.py
     :caption: examples/httpserver_cookies.py
-    :emphasize-lines: 70,77
+    :emphasize-lines: 70,74-75,81
     :linenos:
 
 Chunked response

examples/httpserver_cookies.py

@@ -5,7 +5,7 @@
 import socketpool
 import wifi
 
-from adafruit_httpserver import Server, Request, Response, GET
+from adafruit_httpserver import Server, Request, Response, GET, Headers
 
 
 pool = socketpool.SocketPool(wifi.radio)
@@ -70,6 +70,10 @@ def themed_from_cookie(request: Request):
     user_theme = request.cookies.get("theme", "light")
     wanted_theme = request.query_params.get("theme", user_theme)
 
+    headers = Headers()
+    headers.add("Set-Cookie", f"cookie1=value1")
+    headers.add("Set-Cookie", f"cookie2=value2")
+
     return Response(
         request,
         themed_template(wanted_theme),