From bfb37e48c6d345845f4add18f42d476aee789e6f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20L=C3=B6thberg?= <johannes.loethberg@elokon.com>
Date: Thu, 13 Aug 2026 13:54:46 +0200
Subject: [PATCH] feat(aide): implement OperationInput/OperationOutput for
 axum_extra::either types

---
 crates/aide/src/axum/inputs.rs  | 37 +++++++++++++++++++++++++++++++++
 crates/aide/src/axum/outputs.rs | 30 +++++++++++++++++++++++++-
 2 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/crates/aide/src/axum/inputs.rs b/crates/aide/src/axum/inputs.rs
index 8da2d4a2..497d28a6 100644
--- a/crates/aide/src/axum/inputs.rs
+++ b/crates/aide/src/axum/inputs.rs
@@ -451,3 +451,40 @@ where
         add_parameters(ctx, operation, params);
     }
 }
+
+#[cfg(feature = "axum-extra")]
+mod extra {
+    use axum_extra::either;
+
+    use super::*;
+
+    macro_rules! impl_either {
+        ($ty:ident, $($e:ident),*) => {
+            impl<$($e),*> OperationInput for either::$ty<$($e),*>
+            where
+                $($e: OperationInput),*
+            {
+                fn operation_input(ctx: &mut crate::generate::GenContext, operation: &mut Operation) {
+                    $($e::operation_input(ctx, operation);)*
+                }
+
+                fn inferred_early_responses(
+                    ctx: &mut crate::generate::GenContext,
+                    operation: &mut Operation,
+                ) -> Vec<(Option<StatusCode>, Response)> {
+                    let mut responses = Vec::new();
+                    $(responses.extend($e::inferred_early_responses(ctx, operation));)*
+                    responses
+                }
+            }
+        }
+    }
+
+    impl_either!(Either, E1, E2);
+    impl_either!(Either3, E1, E2, E3);
+    impl_either!(Either4, E1, E2, E3, E4);
+    impl_either!(Either5, E1, E2, E3, E4, E5);
+    impl_either!(Either6, E1, E2, E3, E4, E5, E6);
+    impl_either!(Either7, E1, E2, E3, E4, E5, E6, E7);
+    impl_either!(Either8, E1, E2, E3, E4, E5, E6, E7, E8);
+}
diff --git a/crates/aide/src/axum/outputs.rs b/crates/aide/src/axum/outputs.rs
index 45c9c0f8..e2868686 100644
--- a/crates/aide/src/axum/outputs.rs
+++ b/crates/aide/src/axum/outputs.rs
@@ -255,7 +255,7 @@ impl OperationOutput for Redirect {
 #[cfg(feature = "axum-extra")]
 #[allow(unused_imports)]
 mod extra {
-    use axum_extra::{extract, response};
+    use axum_extra::{either, extract, response};
 
     use super::*;
     use crate::{
@@ -266,6 +266,34 @@ mod extra {
         operation::OperationOutput,
     };
 
+    macro_rules! impl_either {
+        ($ty:ident, $($e:ident),*) => {
+            impl<$($e),*> OperationOutput for either::$ty<$($e),*>
+            where
+                $($e: OperationOutput),*
+            {
+                type Inner = Self;
+
+                fn inferred_responses(
+                    ctx: &mut GenContext,
+                    operation: &mut Operation,
+                ) -> Vec<(Option<StatusCode>, Response)> {
+                    let mut responses = Vec::new();
+                    $(responses.extend($e::inferred_responses(ctx, operation));)*
+                    responses
+                }
+            }
+        }
+    }
+
+    impl_either!(Either, E1, E2);
+    impl_either!(Either3, E1, E2, E3);
+    impl_either!(Either4, E1, E2, E3, E4);
+    impl_either!(Either5, E1, E2, E3, E4, E5);
+    impl_either!(Either6, E1, E2, E3, E4, E5, E6);
+    impl_either!(Either7, E1, E2, E3, E4, E5, E6, E7);
+    impl_either!(Either8, E1, E2, E3, E4, E5, E6, E7, E8);
+
     #[cfg(feature = "axum-extra-cookie")]
     impl OperationOutput for extract::CookieJar {
         type Inner = ();