From 7171e60c58e3ba8a49248ae82ca2b5329af74ed9 Mon Sep 17 00:00:00 2001
From: Paul Schreiber <paul@techmatters.org>
Date: Wed, 1 Nov 2023 14:22:31 -0400
Subject: [PATCH] add form_post response mode

---
 library/java/net/openid/appauth/AuthorizationRequest.java | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/library/java/net/openid/appauth/AuthorizationRequest.java b/library/java/net/openid/appauth/AuthorizationRequest.java
index 74829294..5ae9f42e 100644
--- a/library/java/net/openid/appauth/AuthorizationRequest.java
+++ b/library/java/net/openid/appauth/AuthorizationRequest.java
@@ -264,6 +264,14 @@ public static final class ResponseMode {
          * <http://openid.net/specs/oauth-v2-multiple-response-types-1_0.html#rfc.section.2.1>"
          */
         public static final String FRAGMENT = "fragment";
+
+        /**
+         * Instructs the authorization server to send response parameters using
+         * the HTTP POST method.
+         * @see "OAuth 2.0 Multiple Response Type Encoding Practices, Section 2.1
+         * <https://openid.net/specs/oauth-v2-form-post-response-mode-1_0.html>"
+         */
+        public static final String FORM_POST = "form_post";
     }
 
     @VisibleForTesting