add switch module

1 files changed, 18 insertions, 0 deletions

diff --git a/readme.md b/readme.md
index 451f2dd..cef479e 100644
--- a/readme.md
+++ b/readme.md
@@ -156,6 +156,24 @@ themselves; in that case the request is passed on.
     such a form is provided with the distribution of this software, usually in
     `/usr/share/gnix/login.html` (module)
 
+- **module `switch`**
+  - Decides between two possible routes based on a condition.
+  - `condition`:
+    - `!is_websocket_upgrade`: Checks if a websocket was requested.
+    - `!is_get`: Checks if this is a GET request
+    - `!is_post`: Checks if this is a POST request
+    - `!path_starts_with <prefix>`: Checks if the URI path starts with some
+      prefix
+    - `!path_is <path>`: Checks if the URI path is exactly what you specified
+    - `!has_header <name>`: Checks if the request includes a certain header.
+  - `case_true` Handler with matched requests (module)
+  - `case_false` Handler for all other requests (module)
+
+- **module `headers`**
+  - Appends multiple headers to the response.
+  - `headers`: A map of all header name-value pairs. (object string:string)
+  - `inner`: The handler to add the headers to. (module)
+
 #### Credentials config format
 
 Login credentials for `cookie_auth` and `http_basic_auth` are supplied as either