✨ Support JSON body

.rubocop_gradual.lock

@@ -2,10 +2,10 @@
   "lib/omniauth-ldap/adaptor.rb:3925200886": [
     [68, 7, 413, "Style/ClassMethodsDefinitions: Use `class << self` to define a class method.", 105664470]
   ],
-  "spec/integration/middleware_spec.rb:4142891586": [
+  "spec/integration/middleware_spec.rb:2185613788": [
     [3, 16, 39, "RSpec/DescribeClass: The first argument to describe should be the class or module being tested.", 638096201],
     [30, 14, 10, "RSpec/ExpectActual: Provide the actual value you are testing to `expect(...)`.", 837117997],
-    [81, 5, 317, "RSpec/LeakyConstantDeclaration: Stub class constant instead of declaring explicitly.", 424933157]
+    [130, 5, 317, "RSpec/LeakyConstantDeclaration: Stub class constant instead of declaring explicitly.", 424933157]
   ],
   "spec/integration/roda_integration_spec.rb:1921252381": [
     [3, 16, 50, "RSpec/DescribeClass: The first argument to describe should be the class or module being tested.", 3681952328],
@@ -23,14 +23,14 @@
     [47, 7, 38, "RSpec/AnyInstance: Avoid stubbing using `allow_any_instance_of`.", 3627954156],
     [84, 7, 48, "RSpec/AnyInstance: Avoid stubbing using `allow_any_instance_of`.", 2759780562]
   ],
-  "spec/omniauth/strategies/ldap_spec.rb:4166458344": [
-    [126, 13, 9, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 1130140517],
-    [181, 17, 28, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 3444838747],
-    [190, 17, 23, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 1584148894],
-    [201, 17, 32, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 1515076977],
-    [243, 19, 19, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 2526348694],
-    [269, 17, 56, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 2413495789],
-    [284, 13, 9, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 3182939526],
-    [338, 15, 19, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 2526348694]
+  "spec/omniauth/strategies/ldap_spec.rb:2130811218": [
+    [138, 13, 9, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 1130140517],
+    [193, 17, 28, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 3444838747],
+    [202, 17, 23, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 1584148894],
+    [213, 17, 32, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 1515076977],
+    [255, 19, 19, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 2526348694],
+    [281, 17, 56, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 2413495789],
+    [296, 13, 9, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 3182939526],
+    [350, 15, 19, "RSpec/ContextWording: Context description should match /^when\\b/, /^with\\b/, or /^without\\b/.", 2526348694]
   ]
 }

README.md

@@ -329,6 +329,58 @@ end
 
 Then link users to `/auth/ldap` in your app (for example, in a Devise sign-in page).
 
+### Use JSON Body
+
+This gem is compatible with JSON-encoded POST bodies as well as traditional form-encoded.
+
+- Set header `Content-Type` to `application/json`.
+- Send a JSON object containing `username` and `password`.
+- Rails automatically exposes parsed JSON params via `env["action_dispatch.request.request_parameters"]`, which this strategy reads first. In non-Rails Rack apps, ensure you use a JSON parser middleware if you post raw JSON.
+
+Examples
+
+- curl (JSON):
+
+  ```bash
+  curl -i \
+    -X POST \
+    -H 'Content-Type: application/json' \
+    -d '{"username":"alice","password":"secret"}' \
+    http://localhost:3000/auth/ldap
+  ```
+
+  The request phase will redirect to `/auth/ldap/callback` when both fields are present.
+
+- curl (form-encoded, still supported):
+
+  ```bash
+  curl -i \
+    -X POST \
+    -H 'Content-Type: application/x-www-form-urlencoded' \
+    --data-urlencode 'username=alice' \
+    --data-urlencode 'password=secret' \
+    http://localhost:3000/auth/ldap
+  ```
+
+- Browser (JavaScript fetch):
+
+  ```js
+  fetch('/auth/ldap', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ username: 'alice', password: 'secret' })
+  }).then(res => {
+    if (res.redirected) {
+      window.location = res.url; // typically /auth/ldap/callback
+    }
+  });
+  ```
+
+Notes
+
+- You can still initiate authentication by visiting `GET /auth/ldap` to render the HTML form and then submitting it (form-encoded). JSON is an additional option, not a replacement.
+- In the callback phase (`POST /auth/ldap/callback`), the strategy reads JSON credentials the same way; Rails exposes them via `action_dispatch.request.request_parameters` and non-Rails apps should use a JSON parser middleware.
+
 ### Using a custom filter
 
 If you need to restrict authentication to a group or use a more complex lookup, pass `:filter`. Use `%{username}` — it will be replaced with the processed username (after `:name_proc`).
@@ -708,6 +760,9 @@ See [LICENSE.txt][📄license] for the official [Copyright Notice][📄copyright
             </picture>
         </a>, and omniauth-ldap contributors.
     </li>
+    <li>
+        Copyright (C) 2014 David Benko
+    </li>
     <li>
         Copyright (c) 2011 by Ping Yu and Intridea, Inc.
     </li>

docs/OmniAuth.html

@@ -107,7 +107,7 @@ <h2>Defined Under Namespace</h2>
 </div>
 
       <div id="footer">
-  Generated on Wed Nov  5 20:02:30 2025 by
+  Generated on Thu Nov  6 02:24:32 2025 by
   <a href="https://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>
   0.9.37 (ruby-3.4.7).
 </div>

docs/OmniAuth/LDAP.html

@@ -135,7 +135,7 @@ <h2>
 </div>
 
       <div id="footer">
-  Generated on Wed Nov  5 20:02:30 2025 by
+  Generated on Thu Nov  6 02:24:32 2025 by
   <a href="https://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>
   0.9.37 (ruby-3.4.7).
 </div>