From cd6cc3b1e5db2c5e23e133c2201c23b063fc4895 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 27 Jan 2026 19:37:02 -0300
Subject: [PATCH] feat: add send_request_with_protocol for selecting outbound
 protocols

---
 protocols/request-response/src/lib.rs | 30 +++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/protocols/request-response/src/lib.rs b/protocols/request-response/src/lib.rs
index 1ac781b5744..f5037c0b83b 100644
--- a/protocols/request-response/src/lib.rs
+++ b/protocols/request-response/src/lib.rs
@@ -470,6 +470,36 @@ where
         request_id
     }
 
+    /// Like [`Behaviour::send_request`], but using a specific protocol for negotiation.
+    ///
+    /// This allows explicitly selecting which protocol to use instead of offering all
+    /// configured outbound protocols.
+    pub fn send_request_with_protocol(
+        &mut self,
+        peer: &PeerId,
+        request: TCodec::Request,
+        protocol: TCodec::Protocol,
+    ) -> OutboundRequestId {
+        let request_id = self.next_outbound_request_id();
+        let request = OutboundMessage {
+            request_id,
+            request,
+            protocols: SmallVec::from_iter([protocol]),
+        };
+
+        if let Some(request) = self.try_send_request(peer, request) {
+            self.pending_events.push_back(ToSwarm::Dial {
+                opts: DialOpts::peer_id(*peer).build(),
+            });
+            self.pending_outbound_requests
+                .entry(*peer)
+                .or_default()
+                .push(request);
+        }
+
+        request_id
+    }
+
     /// Initiates sending a response to an inbound request.
     ///
     /// If the [`ResponseChannel`] is already closed due to a timeout or the